exhibit101.htm

EXHIBIT 10.1

Execution Version

Third Amended and Restated Credit Agreement

Dated as of

April 14, 2009

among

St. Mary Land & Exploration Company,

as Borrower,

Wachovia Bank, National Association,

as Administrative Agent,

Bank of America, N.A.,

As Syndication Agent,

Comerica Bank,

BBVA Compass,

and

JPMorgan Chase Bank, N.A.,

As Co-Documentation Agents,

and

The Lenders Party Hereto

with

Wachovia Capital Markets, LLC

As Joint Lead Arranger and

Sole Bookrunner

and

Banc of America Securities,

As Joint Lead Arranger

$1,000,000,000 Senior Secured

Revolving Credit Facility

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TABLE OF CONTENTS

		Page

ARTICLE I DEFINITIONS AND ACCOUNTING MATTERS		1
Section 1.01	Terms Defined Above	1
Section 1.02	Certain Defined Terms	2
Section 1.03	Types of Loans and Borrowings	21
Section 1.04	Terms Generally	21
Section 1.05	Accounting Terms and Determinations; GAAP	22

ARTICLE II THE CREDITS		22
Section 2.01	Commitments	22
Section 2.02	Loans and Borrowings	22
Section 2.03	Requests for Borrowings	23
Section 2.04	Interest Elections	24
Section 2.05	Funding of Borrowings	26
Section 2.06	Termination, Reduction and Increase of Aggregate Commitment	26
Section 2.07	Borrowing Base	28
Section 2.08	Letters of Credit	31
Section 2.09	Swingline Loans	36

ARTICLE III PAYMENTS OF PRINCIPAL AND INTEREST; PREPAYMENTS; FEES		37
Section 3.01	Repayment of Loans	37
Section 3.02	Interest	37
Section 3.03	Alternate Rate of Interest	38
Section 3.04	Prepayments.	39
Section 3.05	Fees	41

ARTICLE IV PAYMENTS; PRO RATA TREATMENT; SHARING OF SET-OFFS.		42
Section 4.01	Payments Generally; Pro Rata Treatment; Sharing of Set-offs	42
Section 4.02	Presumption of Payment by the Borrower	43
Section 4.03	Certain Deductions by the Administrative Agent	43
Section 4.04	Disposition of Proceeds	43

ARTICLE V INCREASED COSTS; BREAK FUNDING PAYMENTS; TAXES; ILLEGALITY		44
Section 5.01	Increased Costs	44
Section 5.02	Break Funding Payments	45
Section 5.03	Taxes	45
Section 5.04	Designation of Different Lending Office	46
Section 5.05	Illegality	47
Section 5.06	Replacement of Lenders	47

ARTICLE VI CONDITIONS PRECEDENT		48

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Section 6.01	Effective Date	48
Section 6.02	Each Credit Event	50

ARTICLE VII REPRESENTATIONS AND WARRANTIES		51
Section 7.01	Organization; Powers	51
Section 7.02	Authority; Enforceability	51
Section 7.03	Approvals; No Conflicts	51
Section 7.04	Financial Condition; No Material Adverse Change	52
Section 7.05	Litigation	52
Section 7.06	Environmental Matters	52
Section 7.07	Compliance with the Laws and Agreements; No Defaults	53
Section 7.08	Investment Company Act	54
Section 7.09	Public Utility Holding Company Act	54
Section 7.10	Taxes	54
Section 7.11	ERISA	54
Section 7.12	Disclosure; No Material Misstatements	55
Section 7.13	Insurance	56
Section 7.14	Restriction on Liens	56
Section 7.15	Subsidiaries	56
Section 7.16	Location of Business and Offices	56
Section 7.17	Properties; Titles, Etc	57
Section 7.18	Maintenance of Properties	58
Section 7.19	Gas Imbalances, Prepayments	58
Section 7.20	Marketing of Production	58
Section 7.21	Swap Agreements	58
Section 7.22	Use of Loans and Letters of Credit	59
Section 7.23	Solvency	59
Section 7.24	Material Agreements	59

ARTICLE VIII AFFIRMATIVE COVENANTS		59
Section 8.01	Financial Statements; Ratings Change; Other Information	60
Section 8.02	Notices of Material Events	62
Section 8.03	Existence; Conduct of Business	62
Section 8.04	Payment of Obligations	63
Section 8.05	Performance of Obligations under Loan Documents	63
Section 8.06	Operation and Maintenance of Properties	63
Section 8.07	Insurance	64
Section 8.08	Books and Records; Inspection Rights	64
Section 8.09	Compliance with Laws	64
Section 8.10	Environmental Matters	64
Section 8.11	Further Assurances	65
Section 8.12	Reserve Reports	66
Section 8.13	Title Information	67
Section 8.14	Additional Collateral; Additional Guarantors	67
Section 8.15	ERISA Compliance	68
Section 8.16	Performance of Material Agreements	69

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ARTICLE IX NEGATIVE COVENANTS		69
Section 9.01	Financial Covenants	69
Section 9.02	Debt	69
Section 9.03	Liens	71
Section 9.04	Dividends, Distributions and Redemptions	71
Section 9.05	Investments, Loans and Advances	72
Section 9.06	Designation of Material Subsidiaries	73
Section 9.07	Nature of Business; International Operations	73
Section 9.08	Proceeds of Notes	73
Section 9.09	ERISA Compliance	74
Section 9.10	Sale or Discount of Receivables	75
Section 9.11	Mergers, Etc	75
Section 9.12	Sale of Properties	75
Section 9.13	Environmental Matters	76
Section 9.14	Transactions with Affiliates	76
Section 9.15	Subsidiaries	76
Section 9.16	Negative Pledge Agreements; Dividend Restrictions	76
Section 9.17	Gas Imbalances, Take-or-Pay or Other Prepayments	76
Section 9.18	Swap Agreements	77
Section 9.19	Preservation of Material Agreements	77
Section 9.20	Release of Liens	77

ARTICLE X EVENTS OF DEFAULT; REMEDIES		78
Section 10.01	Events of Default	78
Section 10.02	Remedies	80

ARTICLE XI THE ADMINISTRATIVE AGENT		80
Section 11.01	Appointment; Powers	80
Section 11.02	Duties and Obligations of Administrative Agent	81
Section 11.03	Action by Administrative Agent	81
Section 11.04	Reliance by Administrative Agent	82
Section 11.05	Subagents	82
Section 11.06	Resignation or Removal of Administrative Agent	82
Section 11.07	Administrative Agent as Lenders	83
Section 11.08	No Reliance	83
Section 11.09	Authority of Administrative Agent to Release Collateral and Liens	84
Section 11.10	Syndication Agent and Co-Documentation Agents	84
Section 11.11	Administrative Agent May File Proofs of Claim	84

ARTICLE XII MISCELLANEOUS		85
Section 12.01	Notices	85
Section 12.02	Waivers; Amendments	86
Section 12.03	Expenses, Indemnity; Damage Waiver.	87
Section 12.04	Successors and Assigns	90
Section 12.05	Survival; Revival; Reinstatement	93
Section 12.06	Counterparts; Integration; Effectiveness	93
Section 12.07	Severability	94

iii

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Section 12.08	Right of Setoff	94
Section 12.09	GOVERNING LAW; JURISDICTION; CONSENT TO SERVICE OF PROCESS	94
Section 12.10	Headings	96
Section 12.11	Confidentiality	96
Section 12.12	Interest Rate Limitation	97
Section 12.13	EXCULPATION PROVISIONS	98
Section 12.14	Existing Credit Agreement	98
Section 12.15	Collateral Matters; Swap Agreements	99
Section 12.16	No Third Party Beneficiaries	100
Section 12.17	USA Patriot Act Notice	100

Annex I List of Commitments

Annex II Existing Letters of Credit

Exhibit A Form of Note

Exhibit B Form of Compliance Certificate

Exhibit C Security Instruments

Exhibit D Form of Assignment and Assumption

Exhibit E Form of Commitment Increase Certificate

Exhibit F Form of Additional Lender Certificate

Exhibit G Reaffirmation Agreement

Exhibit H Form of Legal Opinion of Ballard Spahr Andrews & Ingersoll LLP, special counsel to the Borrower and Guarantors

Schedule 7.05 Litigation

Schedule 7.15 Subsidiaries and Partnerships; Non-Material Subsidiaries

Schedule 7.19 Gas Imbalances

Schedule 7.20 Marketing Contracts

Schedule 7.21 Swap Agreements

Schedule 7.24 Material Agreements

Schedule 9.05(a) Investments

Schedule 9.05(h) Existing Investments (Non-Oil and Gas)

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THIS THIRD AMENDED AND RESTATED CREDIT AGREEMENT dated as of April 14, 2009, is by and among ST. MARY LAND & EXPLORATION COMPANY, a corporation duly formed and existing under the laws of the State of Delaware (the “Borrower”); each of the Lenders from time to time party hereto; WACHOVIA BANK, NATIONAL ASSOCIATION (in its individual capacity, “Wachovia”), as administrative agent for the Lenders (in such capacity, together with its successors in such capacity, by operation of law or as otherwise provided herein, the “Administrative Agent”); Bank of America, N.A., as Syndication Agent; and Comerica Bank, BBVA Compass and JPMorgan Chase Bank, N.A., as Co-Documentation Agents.

The parties hereto agree as follows:

RECITALS

(A) The Borrower, the Administrative Agent, the lenders from time to time party thereto and the other agents and parties referred to therein entered into that certain Credit Agreement dated as of January 27, 2003, (the “Original Credit Agreement”), which was amended and restated by that certain Amended and Restated Credit Agreement dated as of April 7, 2005, among the Borrower, the Administrative Agent, the lenders party thereto and the other agents and parties referred to therein, as amended by that certain First Amendment to Amended and Restated Credit Agreement dated as of March 19, 2007, (the “First Amendment”, and such Amended and Restated Credit Agreement, as amended by the First Amendment, the “Amended and Restated Credit Agreement”).

(B) The Amended and Restated Credit Agreement was amended and restated by that certain Second Amended and Restated Credit Agreement dated as of April 10, 2008, among the Borrower, the Administrative Agent, the lenders party thereto and the other agents and parties referred to therein (the “Existing Credit Agreement”).

(C) The Borrower, the Administrative Agent, the Lenders (as defined below) and the other agents and parties hereto desire to amend and restate the Existing Credit Agreement, such restatement to supplement and replace the Existing Credit Agreement without affecting the requirements thereof with respect to periods occurring, or measured by dates, prior to the effective date of such amendment and restatement.

(D) In consideration of the mutual covenants and agreements herein contained and of the loans, extensions of credit and commitments hereinafter referred to, the parties hereto agree as follows, in doing so amending and restating in its entirety the Existing Credit Agreement effective as of the Effective Date without affecting the requirements of the Existing Credit Agreement existing, or measured by dates or periods, prior to the Effective Date, as more fully set forth herein.

ARTICLE I

Definitions and Accounting Matters

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Section 1.01 Terms Defined Above. As used in this Third Amended and Restated Credit Agreement, each term defined above has the meaning indicated above.

Section 1.02 Certain Defined Terms. As used in this Third Amended and Restated Credit Agreement, the following terms have the meanings specified below:

“ABR”, when used in reference to any Loan or Borrowing, refers to whether such Loan, or the Loans comprising such Borrowing, are bearing interest at a rate determined by reference to the Alternate Base Rate.

“Additional Lender” has the meaning assigned to such term in Section 2.06(c)(i).

“Additional Lender Certificate” has the meaning assigned to such term in Section 2.06(c)(ii)(F).

“Adjusted LIBO Rate” means, with respect to any Eurodollar Borrowing for any Interest Period, an interest rate per annum (rounded upwards, if necessary, to the next 1/16 of 1%) equal to (a) the LIBO Rate for such Interest Period multiplied by (b) the Statutory Reserve Rate.

“Administrative Questionnaire” means an Administrative Questionnaire in a form supplied by the Administrative Agent.

“Affected Loans” has the meaning assigned such term in Section 5.05.

“Affiliate” means, with respect to a specified Person, another Person that directly, or indirectly through one or more intermediaries, Controls or is Controlled by or is under common Control with the Person specified.

“Aggregate Commitment” at any time means the aggregate amount of the Commitments of all the Lenders, as reduced, increased or terminated from time to time pursuant to the terms hereof; provided that the Aggregate Commitment shall not at any time exceed the Maximum Credit Amount; and provided further that, the initial Aggregate Commitment hereunder is $678,000,000 for the period from and including the Effective Date to but excluding the date such amount is reduced, increased or terminated pursuant to the terms hereof.

“Aggregate Revolving Credit Exposures” at any time means the aggregate amount of the Revolving Credit Exposures of all of the Lenders.

“Agreement” means this Third Amended and Restated Credit Agreement, as the same may from time to time be amended, modified, supplemented or restated.

“Alternate Base Rate” means, for any day, a rate per annum equal to the greatest of (i) the Prime Rate in effect on such day, (ii) the Federal Funds Effective Rate in effect on such day plus ½ of 1% and (iii) the Adjusted LIBO Rate for a one month Interest Period on such day (or if such day is not a Business Day, the immediately preceding Business Day) plus 1.5%; provided that, for the avoidance of doubt, the Adjusted LIBO Rate for any day shall be based on the rate appearing on the Reuters Screen LIBOR01 Page (or on any successor or substitute page) at approximately 11:00 a.m. London time on such day (or the immediately preceding Business Day

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if such day is not a day on which banks are open for dealings in dollar deposits in the London interbank market). Any change in the Alternate Base Rate due to a change in the Prime Rate, the Federal Funds Effective Rate or the Adjusted LIBO Rate shall be effective from and including the effective date of such change in the Prime Rate, the Federal Funds Effective Rate or the Adjusted LIBO Rate, respectively.

“Applicable Margin” means, for any day, with respect to any ABR Loan or Eurodollar Loan, or with respect to any commitment fees payable hereunder, as the case may be, the rate per annum set forth in the Borrowing Base Utilization Grid below based upon the Borrowing Base Utilization Percentage then in effect:

Borrowing Base Utilization Grid
Borrowing Base Utilization Percentage	<25%	³25% <50%	³50% <75%	³75%
Eurodollar Loans	2.000%	2.250%	2.500%	2.750%
ABR Loans or Swingline Loans	1.000%	1.250%	1.500%	1.750%
Commitment Fee Rate	0.500%	0.500%	0.500%	0.500%

Each change in the Applicable Margin shall apply during the period commencing on the effective date of such change and ending on the date immediately preceding the effective date of the next such change, provided, however, that if at any time the Borrower fails to deliver a Reserve Report pursuant to Section 8.12(a), then until such time as the Reserve Report is delivered the “Applicable Margin” means the rate per annum set forth on the grid when the Borrowing Base Utilization Percentage is at its highest level.

“Applicable Percentage” means, with respect to any Lender, the percentage of the Aggregate Commitment represented by such Lender’s Commitment as such percentage is set forth on Annex I.

“Approved Counterparty” means (a) any Lender or any Affiliate of a Lender and (b) any other Person whose long term senior unsecured debt rating is BBB+/Baa1 by S&P or Moody’s (or their equivalent) or higher.

“Approved Petroleum Engineers” means (a) Netherland, Sewell & Associates, Inc., (b) Ryder Scott Company Petroleum Consultants, L.P. and (c) any other independent petroleum engineers reasonably acceptable to the Administrative Agent.

“Assignment and Assumption” means an assignment and assumption entered into by a Lender and an assignee (with the consent of any party whose consent is required by Section 12.04(b)), and accepted by the Administrative Agent, in the form of Exhibit D or any other form approved by the Administrative Agent.

“Availability Period” means the period from and including the Effective Date to but excluding the Termination Date.

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“Board” means the Board of Governors of the Federal Reserve System of the United States of America or any successor Governmental Authority.

“Borrowing” means (a) Loans of the same Type, made, converted or continued on the same date and, in the case of Eurodollar Loans, as to which a single Interest Period is in effect or (b) a Swingline Loan.

“Borrowing Base” means at any time an amount equal to the amount determined in accordance with Section 2.07, as the same may be adjusted from time to time pursuant to Section 8.13(c), Section 9.02(k), Section 9.11(a), Section 9.12 or Section 9.20.

“Borrowing Base Utilization Percentage” means, as of any day, the fraction expressed as a percentage, the numerator of which is the Aggregate Revolving Credit Exposures of the Lenders on such day, and the denominator of which is the Borrowing Base in effect on such day.

“Borrowing Request” means a request by the Borrower for a Borrowing in accordance with Section 2.03.

“Business Day” means any day that is not a Saturday, Sunday or other day on which commercial banks in Charlotte, North Carolina; Denver, Colorado; or Houston, Texas are authorized or required by law to remain closed; and if such day relates to a Borrowing or continuation of, a payment or prepayment of principal of or interest on, or a conversion of or into, or the Interest Period for, a Eurodollar Loan or a notice by the Borrower with respect to any such Borrowing or continuation, payment, prepayment, conversion or Interest Period, any day which is also a day on which dealings in dollar deposits are carried out in the London interbank market.

“Capital Leases” means, in respect of any Person, all leases which shall have been, or should have been, in accordance with GAAP, recorded as capital leases on the balance sheet of the Person liable (whether contingent or otherwise) for the payment of rent thereunder.

“Casualty Event” means any uninsured loss, uninsured casualty or other uninsured damage to, or any nationalization, taking under power of eminent domain or by condemnation or similar proceeding of, any Property of the Borrower or any of its Material Subsidiaries having a fair market value in excess of $10,000,000.

“Change in Control” means (a) the acquisition of ownership, directly or indirectly, beneficially or of record, by any Person or group (within the meaning of the Securities Exchange Act of 1934 and the rules of the SEC thereunder as in effect on the date hereof), of Equity Interests representing more than 35% of the aggregate ordinary voting power represented by the issued and outstanding Equity Interests of the Borrower, (b) occupation of a majority of the seats (other than vacant seats) on the board of directors of the Borrower by Persons who were neither (i) nominated by the board of directors of the Borrower nor (ii) appointed by directors so nominated or (c) the acquisition of direct or indirect Control of the Borrower by any Person or group.

“Change in Law” means (a) the adoption of any law, rule or regulation after the date of this Agreement, (b) any change in any law, rule or regulation or in the interpretation or

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application thereof by any Governmental Authority after the date of this Agreement or (c) compliance by any Lender or the Issuing Bank (or, for purposes of Section 5.01(b)), by any lending office of such Lender or by such Lender’s or the Issuing Bank’s holding company, if any) with any request, guideline or directive (whether or not having the force of law) of any Governmental Authority made or issued after the date of this Agreement.

“CLO” means any entity (whether a corporation, partnership, trust or otherwise) that is engaged in making, purchasing, holding or otherwise investing in bank loans and similar extensions of credit in the ordinary course of its business and is administered or managed by a Lender or an Affiliate of such Lender.

“Code” means the Internal Revenue Code of 1986, as amended from time to time, and any successor statute.

“Commitment” means, with respect to each Lender, the commitment of such Lender to make Loans and to acquire participations in Letters of Credit and Swingline Loans hereunder, expressed as an amount representing the maximum aggregate amount of such Lender’s Revolving Credit Exposure hereunder, as such commitment may be (a) modified from time to time pursuant to Section 2.06 and (b) modified from time to time pursuant to assignments by or to such Lender pursuant to Section 12.04(b). The amount representing each Lender’s Commitment shall at any time be such Lender’s Applicable Percentage of the Aggregate Commitment. The amount of each Lender’s initial Commitment is set forth opposite such Lender’s name on Annex I under the caption “Commitment.”

“Commitment Fee Rate” has the meaning set forth in the definition of “Applicable Margin”.

“Commitment Increase Certificate” has the meaning assigned to such term in Section 2.06(c)(ii)(E).

“Consolidated Net Income” means with respect to the Borrower and the Consolidated Subsidiaries, for any period, the aggregate of the net income (or loss) of the Borrower and the Consolidated Subsidiaries after allowances for taxes for such period determined on a consolidated basis in accordance with GAAP; provided that there shall be excluded from such net income (to the extent otherwise included therein) the following: (a) the net income of any Person in which the Borrower or any Consolidated Subsidiary has an interest (which interest does not cause the net income of such other Person to be consolidated with the net income of the Borrower and the Consolidated Subsidiaries in accordance with GAAP), except to the extent of the amount of dividends or distributions actually paid in cash during such period by such other Person to the Borrower or to a Consolidated Subsidiary, as the case may be; (b) the net income (but not loss) during such period of any Consolidated Subsidiary to the extent that the declaration or payment of dividends or similar distributions or transfers or loans by that Consolidated Subsidiary is not at the time permitted by operation of the terms of its charter or any agreement, instrument or Governmental Requirement applicable to such Consolidated Subsidiary or is otherwise restricted or prohibited, in each case determined in accordance with GAAP; (c) any non-cash gains or losses during such period; (d) any gains or losses attributable to writeups or writedowns of assets, including impairments of oil and gas properties; (e) mark-to-market

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adjustments related to the utilization of derivative instruments; and (f) changes in the liability associated with the future payments of amounts under the Net Profits Interest Bonus Plan.

“Consolidated Subsidiaries” means each Subsidiary of the Borrower (whether now existing or hereafter created or acquired) the financial statements of which shall be (or should have been) consolidated with the financial statements of the Borrower in accordance with GAAP.

“Control” means the possession, directly or indirectly, of the power to direct or cause the direction of the management or policies of a Person, whether through the ability to exercise voting power, by contract or otherwise. “Controlling” and “Controlled” have meanings correlative thereto.

“Debt” means, for any Person, the sum of the following (without duplication): (a) all obligations of such Person for borrowed money or evidenced by bonds, bankers’ acceptances, debentures, notes or other similar instruments; (b) all obligations of such Person (whether contingent or otherwise) in respect of letters of credit, surety or other bonds and similar instruments; (c) all accounts payable, accrued expenses, liabilities or other obligations of such Person to pay the deferred purchase price of Property or services; (d) all obligations under Capital Leases; (e) all obligations under Synthetic Leases; (f) all Debt (as defined in the other clauses of this definition) of others secured by a Lien on any Property of such Person, whether or not such Debt is assumed by such Person; (g) all Debt (as defined in the other clauses of this definition) of others guaranteed by such Person or in which such Person otherwise assures a creditor against loss of the Debt (howsoever such assurance shall be made) to the extent of the lesser of the amount of such Debt and the maximum stated amount of such guarantee or assurance against loss; (h) all obligations or undertakings of such Person to maintain or cause to be maintained the financial position or covenants of others or to purchase the Debt or Property of others; (i) obligations to deliver commodities, goods or services, including, without limitation, Hydrocarbons, in consideration of one or more advance payments, other than gas balancing arrangements in the ordinary course of business; (j) obligations to pay for goods or services whether or not such goods or services are actually received or utilized by such Person; (k) any Debt of a partnership for which such Person is liable either by agreement, by operation of law or by a Governmental Requirement but only to the extent of such liability; (l) Disqualified Capital Stock; and (m) the undischarged balance of any production payment created by such Person or for the creation of which such Person directly or indirectly received payment. The Debt of any Person shall include all obligations of such Person of the character described above to the extent such Person remains legally liable in respect thereof notwithstanding that any such obligation is not included as a liability of such Person under GAAP; provided, however, the contingent obligations of Borrower or any Subsidiary of Borrower pursuant to any purchase and sale agreement, stock purchase agreement, merger agreement or similar agreement shall not constitute “Debt” within this definition so long as none of same contains an obligation to pay money over time. It is hereby understood and agreed that in calculating the amount of Debt in respect of borrowed money, the effect of Financial Accounting Standards Board Statement No. 133 shall be disregarded.

“Debtor Relief Laws” means the Bankruptcy Code of the United States, and all other liquidation, conservatorship, bankruptcy, assignment for the benefit of creditors, moratorium,

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rearrangement, receivership, insolvency, reorganization, or similar debtor relief Laws of the United States or other applicable jurisdictions from time to time in effect and affecting the rights of creditors generally.

“Default” means any event or condition which constitutes an Event of Default or which upon notice, lapse of time or both would, unless cured or waived, become an Event of Default.

“Disqualified Capital Stock” means any Equity Interest that, by its terms (or by the terms of any security into which it is convertible or for which it is exchangeable) or upon the happening of any event, matures or is mandatorily redeemable for any consideration other than other Equity Interests (which would not constitute Disqualified Capital Stock), pursuant to a sinking fund obligation or otherwise, or is convertible or exchangeable for Debt or redeemable for any consideration other than other Equity Interests (which would not constitute Disqualified Capital Stock) at the option of the holder thereof, in whole or in part, on or prior to the date that is one year after the earlier of (a) the Maturity Date and (b) the date on which there are no Loans, LC Exposure or other obligations hereunder outstanding and all of the Commitments are terminated.

“dollars” or “$” refers to lawful money of the United States of America.

“EBITDA” means, for any period, the sum of Consolidated Net Income for such period plus the following expenses or charges to the extent deducted from Consolidated Net Income in such period: interest, taxes, depreciation, depletion, amortization, noncash impairment charges and other noncash charges, minus all noncash income added to Consolidated Net Income. Noncash charges include mark-to-market adjustments related to the utilization of derivative instruments and changes in the liability associated with the future payments of amounts under the Net Profits Interest Bonus Plan.

“Effective Date” means the date on which the conditions specified in Section 6.01 are satisfied (or waived in accordance with Section 12.02).

“Engineering Reports” has the meaning assigned such term in Section 2.07(c)(i).

“Environmental Laws” means any and all Governmental Requirements pertaining in any way to health, safety, the environment or the preservation or reclamation of natural resources, in effect in any and all jurisdictions in which the Borrower or any Subsidiary is conducting or at any time has conducted business, or where any Property of the Borrower or any Subsidiary is located, including without limitation, the Oil Pollution Act of 1990 (“OPA”), as amended, the Clean Air Act, as amended, the Comprehensive Environmental, Response, Compensation, and Liability Act of 1980 (“CERCLA”), as amended, the Federal Water Pollution Control Act, as amended, the Occupational Safety and Health Act of 1970, as amended, the Resource Conservation and Recovery Act of 1976 (“RCRA”), as amended, the Safe Drinking Water Act, as amended, the Toxic Substances Control Act, as amended, the Superfund Amendments and Reauthorization Act of 1986, as amended, the Hazardous Materials Transportation Act, as amended, and other environmental conservation or protection Governmental Requirements. The term “oil” shall have the meaning specified in OPA, the terms “hazardous substance” and “release” (or “threatened release”) have the meanings specified in CERCLA, the terms “solid

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waste” and “disposal” (or “disposed”) have the meanings specified in RCRA and the term “oil and gas waste” shall have the meaning specified in Section 91.1011 of the Texas Natural Resources Code (“Section 91.1011”); provided, however, that (a) in the event any of OPA, CERCLA, RCRA or Section 91.1011 is amended so as to broaden the meaning of any term defined thereby, such broader meaning shall apply subsequent to the effective date of such amendment and (b) to the extent the laws of the state or other jurisdiction in which any Property of the Borrower or any Subsidiary is located establish a meaning for “oil,” “hazardous substance,” “release,” “solid waste,” “disposal” or “oil and gas waste” which is broader than that specified in either OPA, CERCLA, RCRA or Section 91.1011, such broader meaning shall apply.

“Equity Interests” means shares of capital stock, partnership interests, joint venture interest or interests in comparable entities, membership interests in a limited liability company, beneficial interests in a trust or other equity ownership interests in a Person, and any warrants, options or other rights entitling the holder thereof to purchase or acquire any such Equity Interest.

“ERISA” means the Employee Retirement Income Security Act of 1974, as amended, and any successor statute.

“ERISA Affiliate” means each trade or business (whether or not incorporated) which together with the Borrower or a Subsidiary would be deemed to be a “single employer” within the meaning of section 4001(b)(1) of ERISA or subsections (b), (c), (m) or (o) of section 414 of the Code.

“ERISA Event” means (a) a “Reportable Event” described in section 4043 of ERISA and the regulations issued thereunder, (b) the withdrawal of the Borrower, a Subsidiary or any ERISA Affiliate from a Plan during a plan year in which it was a “substantial employer” as defined in section 4001(a)(2) of ERISA, (c) the filing of a notice of intent to terminate a Plan or the treatment of a Plan amendment as a termination under section 4041 of ERISA, (d) the institution of proceedings to terminate a Plan by the PBGC or (e) any other event or condition which might constitute grounds under section 4042 of ERISA for the termination of, or the appointment of a trustee to administer, any Plan.

“Eurodollar”, when used in reference to any Loan or Borrowing, refers to whether such Loan, or the Loans comprising such Borrowing, are bearing interest at a rate determined by reference to the Adjusted LIBO Rate.

“Event of Default” has the meaning assigned such term in Section 10.01.

“Excepted Liens” means: (a) Liens for Taxes, assessments or other governmental charges or levies which are not delinquent or which are being contested in good faith by appropriate action and for which adequate reserves have been maintained in accordance with GAAP; (b) Liens in connection with workers’ compensation, unemployment insurance or other social security, old age pension or public liability obligations which are not delinquent or which are being contested in good faith by appropriate action and for which adequate reserves have been maintained in accordance with GAAP; (c) statutory landlord’s liens, operators’, vendors’,

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carriers’, warehousemen’s, repairmen’s, mechanics’, suppliers’, workers’, materialmen’s, construction or other like Liens arising by operation of law in the ordinary course of business or incident to the exploration, development, operation and maintenance of Oil and Gas Properties each of which is in respect of obligations that are not delinquent or which are being contested in good faith by appropriate action and for which adequate reserves have been maintained in accordance with GAAP; (d) contractual Liens which arise in the ordinary course of business under operating agreements, joint venture agreements, oil and gas partnership agreements, oil and gas leases, farm-out agreements, division orders, contracts for the sale, transportation or exchange of oil and natural gas, unitization and pooling declarations and agreements, area of mutual interest agreements, overriding royalty agreements, marketing agreements, processing agreements, net profits agreements, development agreements, gas balancing or deferred production agreements, injection, repressuring and recycling agreements, salt water or other disposal agreements, seismic or other geophysical permits or agreements, and other agreements which are usual and customary in the oil and gas business and are for claims which are not delinquent or which are being contested in good faith by appropriate action and for which adequate reserves have been maintained in accordance with GAAP, provided that any such Lien referred to in this clause does not materially impair the use of the Property covered by such Lien for the purposes for which such Property is held by the Borrower or any Subsidiary or materially impair the value of such Property subject thereto; (e) Liens arising solely by virtue of any statutory or common law provision relating to banker’s liens, rights of set-off or similar rights and remedies and burdening only deposit accounts or other funds maintained with a creditor depository institution, provided that no such deposit account is a dedicated cash collateral account or is subject to restrictions against access by the depositor in excess of those set forth by regulations promulgated by the Board and no such deposit account is intended by Borrower or any of its Subsidiaries to provide collateral to the depository institution; (f) easements, restrictions, servitudes, permits, conditions, covenants, exceptions or reservations in any Property of the Borrower or any Subsidiary for the purpose of roads, pipelines, transmission lines, transportation lines, distribution lines for the removal of gas, oil, coal or other minerals or timber, and other like purposes, or for the joint or common use of real estate, rights of way, facilities and equipment, which in the aggregate do not materially impair the use of such Property for the purposes of which such Property is held by the Borrower or any Subsidiary or materially impair the value of such Property subject thereto; (g) Liens on cash or securities pledged to secure performance of tenders, surety and appeal bonds, government contracts, performance and return of money bonds, bids, trade contracts, leases, statutory obligations, regulatory obligations and other obligations of a like nature incurred in the ordinary course of business; (h) Liens on existing and future cash, U.S. government securities, and letters of credit securing or supporting Swap Agreements permitted pursuant to Section 9.18; and (i) judgment and attachment Liens not giving rise to an Event of Default, provided that any appropriate legal proceedings which may have been duly initiated for the review of such judgment shall not have been finally terminated or the period within which such proceeding may be initiated shall not have expired and no action to enforce such Lien has been commenced; provided, further that Liens described in clauses (a) through (e) shall remain “Excepted Liens” only for so long as no action to enforce such Lien has been commenced and no intention to subordinate the first priority Lien granted in favor of the Administrative Agent and the Lenders is to be hereby implied or expressed by the permitted existence of such Excepted Liens.

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“Excluded Taxes” means, with respect to the Administrative Agent, any Lender, the Issuing Bank or any other recipient of any payment to be made by or on account of any obligation of the Borrower or any Guarantor hereunder or under any other Loan Document, (a) income or franchise taxes imposed on (or measured by) its net income by the United States of America or such other jurisdiction under the laws of which such recipient is organized or in which its principal office is located or, in the case of any Lender, in which its applicable lending office is located, (b) any branch profits taxes imposed by the United States of America or any similar tax imposed by any other jurisdiction in which the Borrower or any Guarantor is located and (c) in the case of a Foreign Lender, any withholding tax that is imposed on amounts payable to such Foreign Lender at the time such Foreign Lender becomes a party to this Agreement (or designates a new lending office) or is attributable to such Foreign Lender’s failure to comply with Section 5.03(e), except to the extent that such Foreign Lender (or its assignor, if any) was entitled, at the time of designation of a new lending office (or assignment), to receive additional amounts with respect to such withholding tax pursuant to Section 5.03(a) or Section 5.03(c).

“Federal Funds Effective Rate” means, for any day, the weighted average (rounded upwards, if necessary, to the next 1/100 of 1%) of the rates on overnight Federal funds transactions with members of the Federal Reserve System arranged by Federal funds brokers, as published on the next succeeding Business Day by the Federal Reserve Bank of New York, or, if such rate is not so published for any day that is a Business Day, the average (rounded upwards, if necessary, to the next 1/100 of 1%) of the quotations for such day for such transactions received by the Administrative Agent from three Federal funds brokers of recognized standing selected by it.

“Financial Officer” means the chief financial officer, principal accounting officer, treasurer or controller of the Borrower.

“Financial Statements” means the financial statement or statements of the Borrower and its Consolidated Subsidiaries referred to in Section 7.04(a).

“Foreign Lender” means any Lender that is organized under the laws of a jurisdiction other than that in which the Borrower is located. For purposes of this definition, the United States of America, each State thereof and the District of Columbia shall be deemed to constitute a single jurisdiction.

“GAAP” means generally accepted accounting principles in the United States of America as in effect from time to time subject to the terms and conditions set forth in Section 1.05.

“Governmental Authority” means the government of the United States of America, any other nation or any political subdivision thereof, whether state or local, and any agency, authority, instrumentality, regulatory body, court, central bank or other entity exercising executive, legislative, judicial, taxing, regulatory or administrative powers or functions of or pertaining to government over the Borrower, any Material Subsidiary, any of their Properties, any Agent, the Issuing Bank or any Lender.

“Governmental Requirement” means any law, statute, code, ordinance, order, determination, rule, regulation, judgment, decree, injunction, franchise, permit, certificate,

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license, authorization or other directive or requirement, whether now or hereinafter in effect, including, without limitation, Environmental Laws, energy regulations and occupational, safety and health standards or controls, of any Governmental Authority.

“Guarantors” means the Material Subsidiaries, and each other Subsidiary that guarantees the Indebtedness pursuant to Section 8.14(b). As of the Effective Date, there are no Guarantors.

“Guaranty Agreement” means an agreement executed by the Guarantors in substantially the form of Exhibit D-2 to the Amended and Restated Credit Agreement, as the same may be amended, modified or supplemented from time to time.

“Highest Lawful Rate” means, with respect to each Lender, the maximum nonusurious interest rate, if any, that at any time or from time to time may be contracted for, taken, reserved, charged or received on the Notes or on other Indebtedness under laws of the State of Texas which are presently in effect or, to the extent allowed by law, under such applicable laws which may hereafter be in effect and which allow a higher maximum nonusurious interest rate than applicable laws allow as of the date hereof.

“Hydrocarbon Interests” means all rights, titles, interests and estates now or hereafter acquired in and to oil and gas leases, oil, gas and mineral leases, or other liquid or gaseous hydrocarbon leases, mineral fee interests, overriding royalty and royalty interests, net profit interests and production payment interests, including any reserved or residual interests of whatever nature.

“Hydrocarbons” means oil, gas, casinghead gas, drip gasoline, natural gasoline, condensate, distillate, liquid hydrocarbons, gaseous hydrocarbons and all products refined or separated therefrom.

“Impacted Lender” means (a) any Lender (i) which has defaulted in its obligation to fund Loans hereunder within three Business Days of the date required to be funded by it hereunder, (ii) which has failed to fund any portion of its participations in LC Disbursements or participations in Swingline Loans required to be funded by it hereunder within three Business Days of the date required to be funded by it hereunder, (iii) which has otherwise failed to pay over to the Administrative Agent or any other Lender any other amount required to be paid by it hereunder within three Business Days of the date when due, unless the subject of a good faith dispute, (iv) which has notified the Administrative Agent, or has stated publicly, that such Lender will not comply with any of its funding obligations under this Agreement, or (v) which has been deemed insolvent (by the Administrative Agent or the Majority Lenders) or becomes the subject of a proceeding under any Debtor Relief Law; or (b) any Lender as to which (i) the Issuing Bank has a good faith belief that the Lender has defaulted in fulfilling its obligations under one or more other syndicated facilities or (ii) an entity that Controls such Lender has been deemed insolvent (by the Administrative Agent or the Majority Lenders) or become subject to a proceeding under any Debtor Relief Law.

“Indebtedness” means any and all amounts owing or to be owing by the Borrower or any Guarantor: (a) to the Administrative Agent, the Issuing Bank or any Lender under any Loan Document; (b) to any Lender or any Affiliate of a Lender under any present or future Swap

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Agreements entered into between the Borrower or any Guarantor and any Lender or any Affiliate of a Lender, including, without limitation, the Swap Agreements entered into with a Lender or an Affiliate of a Lender and listed on attached Schedule 7.21, and (c) all renewals, extensions and/or rearrangements of any of the above.

“Indemnified Taxes” means Taxes other than Excluded Taxes.

“Information Memorandum” means the Confidential Information Memorandum dated March 2009, relating to the Borrower and the Transactions.

“Initial Reserve Report” means (a) the report of the Borrower, which includes reserve estimates as prepared by Ryder Scott Company, L.P. and Netherland, Sewell Associates, Inc., dated as of December 31, 2008, with respect to the value of the Oil and Gas Properties of the Borrower and its Material Subsidiaries as of December 31, 2008, and (b) the report of the Vice President, Engineering and Evaluation of the Borrower dated as of December 31, 2008, with respect to the value of the Oil and Gas Properties of the Borrower and its Material Subsidiaries as of December 31, 2008.

“Interest Election Request” means a request by the Borrower to convert or continue a Borrowing in accordance with Section 2.04.

“Interest Payment Date” means (a) with respect to any ABR Loan (other than any Swingline Loan), the last day of each calendar month, (b) with respect to any Eurodollar Loan (other than any Swingline Loan), the last day of the Interest Period applicable to the Borrowing of which such Loan is a part and, in the case of a Eurodollar Borrowing with an Interest Period of more than three months’ duration, each day prior to the last day of such Interest Period that occurs at intervals of three months’ duration after the first day of such Interest Period and (c) as to any Swingline Loan, the day such Swingline Loan is paid.

“Interest Period” means with respect to any Eurodollar Borrowing, the period commencing on the date of such Borrowing and ending on the numerically corresponding day in the calendar month that is one, two, three or six months thereafter (subject to market availability), as the Borrower may elect or, with the consent of each Lender, nine or twelve months; provided, that (a) if any Interest Period would end on a day other than a Business Day, such Interest Period shall be extended to the next succeeding Business Day unless such next succeeding Business Day would fall in the next calendar month, in which case such Interest Period shall end on the next preceding Business Day and (b) any Interest Period pertaining to a Eurodollar Borrowing that commences on the last Business Day of a calendar month (or on a day for which there is no numerically corresponding day in the last calendar month of such Interest Period) shall end on the last Business Day of the last calendar month of such Interest Period. For purposes hereof, the date of a Borrowing initially shall be the date on which such Borrowing is made and thereafter shall be the effective date of the most recent conversion or continuation of such Borrowing.

“Interim Redetermination” has the meaning assigned such term in Section 2.07(b).

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“Interim Redetermination Date” means the date on which a Borrowing Base that has been redetermined pursuant to an Interim Redetermination becomes effective as provided in Section 2.07(d).

“Investment” means, for any Person: (a) the acquisition (whether for cash, Property, services or securities or otherwise) of Equity Interests of any other Person or any agreement to make any such acquisition (including, without limitation, any “short sale” or any sale of any securities at a time when such securities are not owned by the Person entering into such short sale); (b) the making of any deposit with, or advance, loan or other extension of credit to, any other Person (including the purchase of Property from another Person subject to an understanding or agreement, contingent or otherwise, to resell such Property to such Person, but excluding any such advance, loan or extension of credit having a term not exceeding ninety (90) days representing the purchase price of inventory or supplies sold by such Person in the ordinary course of business) or (c) the entering into of any guarantee (excluding performance guarantees) of, or other contingent obligation (including the deposit of any Equity Interests to be sold) with respect to, Debt or other liability of any other Person and (without duplication) any amount committed to be advanced, lent or extended to such Person.

“Issuing Bank” means Wachovia, in its capacity as an issuer of Letters of Credit hereunder, and Wells Fargo Bank, N.A., in its capacity as an issuer of Letters of Credit hereunder, and their respective successors in such capacity as provided in Section 2.08(j). The Issuing Bank may, in its discretion, arrange for one or more Letters of Credit to be issued by Affiliates of the Issuing Bank, in which case the term “Issuing Bank” shall include any such Affiliate with respect to Letters of Credit issued by such Affiliate.

“Law” means any statute, law, regulation, ordinance, rule, treaty, judgment, order, decree, permit, concession, franchise, license, agreement or other governmental restriction of the United States or any state or political subdivision thereof or of any foreign country or any department, province or other political subdivision thereof. Any reference to a Law includes any amendment or modification to such Law, and all regulations, rulings, and other Laws promulgated under such Law.

“LC Commitment” at any time means $50,000,000.

“LC Disbursement” means a payment made by the Issuing Bank pursuant to a Letter of Credit.

“LC Exposure” means, at any time, the sum of (a) the aggregate undrawn amount of all outstanding Letters of Credit at such time plus (b) the aggregate amount of all LC Disbursements that have not yet been reimbursed by or on behalf of the Borrower at such time. The LC Exposure of any Lender at any time shall be its Applicable Percentage of the total LC Exposure at such time.

“Lenders” means the Persons listed on Annex I, any Person that shall have become a party hereto pursuant to an Assignment and Assumption, other than any such Person that ceases to be a party hereto pursuant to an Assignment and Assumption, and any Person that shall have

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become a party hereto pursuant to Section 2.06(c). Unless the context otherwise requires, the term “Lender” includes the Swingline Lender.

“Letter of Credit” means any letter of credit issued pursuant to this Agreement, and the outstanding letters of credit issued under the Original Credit Agreement, the Amended and Restated Credit Agreement or the Existing Credit Agreement, more particularly described on attached Annex II.

“Letter of Credit Agreements” means all letter of credit applications and other agreements (including any amendments, modifications or supplements thereto) submitted by the Borrower, or entered into by the Borrower, with the Issuing Bank relating to any Letter of Credit.

“LIBO Rate” means, with respect to any Eurodollar Borrowing for any Interest Period, the rate appearing on the Reuters Screen LIBOR01 Page (or on any successor or substitute page providing rate quotations comparable to those currently provided on such page, as determined by the Administrative Agent from time to time for purposes of providing quotations of interest rates applicable to dollar deposits in the London interbank market) at approximately 11:00 a.m., London time, two Business Days prior to the commencement of such Interest Period, as the rate for dollar deposits with a maturity comparable to such Interest Period. In the event that such rate is not available at such time for any reason, then the “LIBO Rate” with respect to such Eurodollar Borrowing for such Interest Period shall be the rate at which dollar deposits of $5,000,000 and for a maturity comparable to such Interest Period are offered by the principal London office of the Administrative Agent in immediately available funds in the London interbank market at approximately 11:00 a.m., London time, two Business Days prior to the commencement of such Interest Period.

“Lien” means any interest in Property securing an obligation owed to, or a claim by, a Person other than the owner of the Property, whether such interest is based on the common law, statute or contract, and whether such obligation or claim is fixed or contingent, and including but not limited to (a) the lien or security interest arising from a mortgage, encumbrance, pledge, security agreement, conditional sale or trust receipt or a lease, consignment or bailment for security purposes or (b) production payments and the like payable out of Oil and Gas Properties. The term “Lien” shall include easements, restrictions, servitudes, permits, conditions, covenants, exceptions or reservations. For the purposes of this Agreement, the Borrower and its Subsidiaries shall be deemed to be the owner of any Property which it has acquired or holds subject to a conditional sale agreement, or leases under a financing lease or other arrangement pursuant to which title to the Property has been retained by or vested in some other Person in a transaction intended to create a financing.

“Loan Documents” means this Agreement, the Notes, the Letter of Credit Agreements, the Letters of Credit and the Security Instruments.

“Loans” means the loans made by the Lenders to the Borrower pursuant to this Agreement. Unless the context otherwise requires, the term “Loans” includes the Swingline Loans.

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“Majority Lenders” means, at any time while no Loans or LC Exposure is outstanding, Lenders having more than fifty percent (50%) of the Aggregate Commitments; and at any time while any Loans or LC Exposure is outstanding, Lenders holding more than fifty percent (50%) of the outstanding aggregate principal amount of the Loans or participation interests in Letters of Credit (without regard to any sale by a Lender of a participation in any Loan under Section 12.04(c)).

“Material Adverse Effect” means a material adverse effect on (a) the business, assets, operations, prospects or condition, financial or otherwise, of the Borrower and the Subsidiaries taken as a whole, (b) the ability of the Borrower, any Subsidiary or any Guarantor to perform any of its obligations under any Loan Document or (c) the rights and remedies of or benefits available to the Administrative Agent, the Issuing Bank or any Lender under any Loan Document.

“Material Agreements” means each agreement (whether one or more) described or referred to on Schedule 7.24.

“Material Indebtedness” means Debt (other than the Loans and Letters of Credit), or obligations in respect of one or more Swap Agreements, of any one or more of the Borrower and its Subsidiaries in an aggregate principal amount exceeding $15,000,000. For purposes of determining Material Indebtedness, the “principal amount” of the obligations of the Borrower or any Subsidiary in respect of any Swap Agreement at any time shall be the maximum aggregate amount (giving effect to any netting agreements) that the Borrower or such Subsidiary would be required to pay if such Swap Agreement were terminated at such time.

“Material Subsidiary” means a Subsidiary of Borrower that owns a Substantial Portion of the Property of Borrower and its Subsidiaries.

“Maturity Date” means July 31, 2012.

“Maximum Credit Amount” means at any time an amount equal to the lesser of (a) the then effective Borrowing Base and (b) $1,000,000,000.

“Moody’s” means Moody’s Investors Service, Inc. and any successor thereto that is a nationally recognized rating agency.

“Mortgaged Property” means any Property owned by the Borrower or any Material Subsidiary which is subject to the Liens existing and to exist under the terms of the Security Instruments.

“Multiemployer Plan” means a Plan which is a multiemployer plan as defined in section 3(37) or 4001 (a)(3) of ERISA.

“New Borrowing Base Notice” has the meaning assigned such term in Section 2.07(d).

“Notes” means the promissory notes of the Borrower described in Section 2.02(d) and being substantially in the form of Exhibit A, together with all amendments, modifications, replacements, extensions and rearrangements thereof.

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“Oil and Gas Properties” means (a) Hydrocarbon Interests; (b) the Properties now or hereafter pooled or unitized with Hydrocarbon Interests; (c) all presently existing or future unitization, pooling agreements and declarations of pooled units and the units created thereby (including without limitation all units created under orders, regulations and rules of any Governmental Authority) which may affect all or any portion of the Hydrocarbon Interests; (d) all operating agreements, contracts and other agreements, including production sharing contracts and agreements, which relate to any of the Hydrocarbon Interests or the production, sale, purchase, exchange or processing of Hydrocarbons from or attributable to such Hydrocarbon Interests; (e) all Hydrocarbons in and under and which may be produced and saved or attributable to the Hydrocarbon Interests, including all oil in tanks, and all rents, issues, profits, proceeds, products, revenues and other incomes from or attributable to the Hydrocarbon Interests; (f) all tenements, hereditaments, appurtenances and Properties in any manner appertaining, belonging, affixed or incidental to the Hydrocarbon Interests and (g) all Properties, rights, titles, interests and estates described or referred to above, including any and all Property, real or personal, now owned or hereinafter acquired and situated upon, used, held for use or useful in connection with the operating, working or development of any of such Hydrocarbon Interests or Property (excluding drilling rigs, automotive equipment, rental equipment or other personal Property which may be on such premises for the purpose of drilling a well or for other similar temporary uses) and including any and all oil wells, gas wells, injection wells or other wells, buildings, structures, fuel separators, liquid extraction plants, plant compressors, pumps, pumping units, field gathering systems, tanks and tank batteries, fixtures, valves, fittings, machinery and parts, engines, boilers, meters, apparatus, equipment, appliances, tools, implements, cables, wires, towers, casing, tubing and rods, surface leases, rights-of-way, easements and servitudes together with all additions, substitutions, replacements, accessions and attachments to any and all of the foregoing.

“Other Taxes” means any and all present or future stamp or documentary taxes or any other excise or Property taxes, charges or similar levies arising from any payment made hereunder or from the execution, delivery or enforcement of, or otherwise with respect to, this Agreement and any other Loan Document.

“Participant” has the meaning set forth in Section 12.04(c)(i).

“PBGC” means the Pension Benefit Guaranty Corporation, or any successor thereto.

“Permitted Refinancing Debt” means Debt (for purposes of this definition, “new Debt”) incurred in exchange for, or proceeds of which are used to refinance, all of any other Debt (the “Refinanced Debt”); provided that (a) such new Debt is in an aggregate principal amount not in excess of the sum of (i) the aggregate principal amount then outstanding of the Refinanced Debt (or, if the Refinanced Debt is exchanged or acquired for an amount less than the principal amount thereof to be due and payable upon a declaration of acceleration thereof, such lesser amount) and (ii) an amount necessary to pay any fees and expenses, including premiums, related to such exchange or refinancing; (b) such new Debt has a stated maturity no earlier than the stated maturity of the Refinanced Debt and an average life no shorter than the average life of the Refinanced Debt; (c) such new Debt does not contain any covenants which are more onerous to the Borrower and its Subsidiaries than those imposed by the Refinanced Debt and (d) such new Debt (and any guarantees thereof) is subordinated in right of payment to the Indebtedness (or, if

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applicable, the Guaranty Agreement) to at least the same extent as the Refinanced Debt and is otherwise subordinated on terms substantially reasonably satisfactory to the Administrative Agent.

“Person” means any natural person, corporation, limited liability company, trust, joint venture, association, company, partnership, Governmental Authority or other entity.

“Plan” means any employee pension benefit plan, as defined in section 3(2) of ERISA, which (a) is currently or hereafter sponsored, maintained or contributed to by the Borrower, a Subsidiary or an ERISA Affiliate or (b) was at any time during the six calendar years preceding the date hereof, sponsored, maintained or contributed to by the Borrower or a Subsidiary or an ERISA Affiliate.

“Pledge - Borrower” means that certain Pledge and Security Agreement from the Borrower in favor of the Administrative Agent, pledging to the Administrative Agent as security for the Indebtedness all equity interests held by the Borrower in any Material Subsidiaries, in substantially the form of Exhibit D-3 to the Amended and Restated Credit Agreement, as the same may be amended, modified or supplemented from time to time.

“Prime Rate” means the rate of interest per annum publicly announced from time to time by Wachovia as its prime rate in effect at its principal office in Charlotte, North Carolina; each change in the Prime Rate shall be effective from and including the date such change is publicly announced as being effective. Such rate is set by Wachovia as a general reference rate of interest, taking into account such factors as Wachovia may deem appropriate; it being understood that many of Wachovia’s commercial or other loans are priced in relation to such rate, that it is not necessarily the lowest or best rate actually charged to any customer and that Wachovia may make various commercial or other loans at rates of interest having no relationship to such rate.

“Property” means any interest in any kind of property or asset, whether real, personal or mixed, or tangible or intangible, including, without limitation, cash, securities, accounts and contract rights.

“Proposed Borrowing Base” has the meaning assigned to such term in Section 2.07(c)(i).

“Proposed Borrowing Base Notice” has the meaning assigned to such term in Section 2.07(c)(ii).

“Reaffirmation Agreements” means that certain Reaffirmation Agreement dated as of April 10, 2008, by the Borrower in favor of the Administrative Agent, in substantially the form of Exhibit G to the Amended and Restated Credit Agreement and that certain Reaffirmation Agreement dated as of even date herewith, by the Borrower in favor of the Administrative Agent, in substantially the form of Exhibit G hereto, as the same may from time to time be amended, modified, supplemented or restated.

“Redemption” means the repurchase, redemption, prepayment, repayment or defeasance (or the segregation of funds with respect to any of the foregoing) of the Material Indebtedness; provided, however, the term Redemption shall not include early termination of a Swap

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Agreement due to an ISDA “Termination Event” to the extent the amount due at termination does not exceed $15,000,000. “Redeem” has the correlative meaning thereto.

“Redetermination Date” means, with respect to any Scheduled Redetermination or any Interim Redetermination, the date that the redetermined Borrowing Base related thereto becomes effective pursuant to Section 2.07(d).

“Refinanced Debt” has the meaning assigned such term in the definition of “Permitted Refinancing Debt”.

“Register” has the meaning assigned such term in Section 12.04(b)(iv).

“Regulation D” means Regulation D of the Board, as the same may be amended, supplemented or replaced from time to time.

“Related Parties” means, with respect to any specified Person, such Person’s Affiliates and the respective directors, officers, employees, agents and advisors of such Person and such Person’s Affiliates.

“Remedial Work” has the meaning assigned such term in Section 8.10(a).

“Reserve Report” means a report, in form and substance reasonably satisfactory to the Administrative Agent, setting forth, as of each December 31st or June 30th (or such other date in the event of an Interim Redetermination) the oil and gas reserves attributable to the Oil and Gas Properties of the Borrower and the Material Subsidiaries, together with a projection of the rate of production and future net income, taxes, operating expenses and capital expenditures with respect thereto as of such date, based upon the pricing assumptions consistent with SEC reporting requirements at the time.

“Responsible Officer” means, as to any Person, the Chief Executive Officer, the President, any Financial Officer or any Vice President of such Person. Unless otherwise specified, all references to a Responsible Officer herein shall mean a Responsible Officer of the Borrower.

“Restricted Payment” means any dividend or other distribution (whether in cash, securities or other Property) with respect to any Equity Interests in the Borrower, or any payment (whether in cash, securities or other Property), including any sinking fund or similar deposit, on account of the purchase, redemption, retirement, acquisition, cancellation or termination of any such Equity Interests in the Borrower or any option, warrant or other right to acquire any such Equity Interests in the Borrower.

“Revolving Credit Exposure” means, with respect to any Lender at any time, the sum of the outstanding principal amount of such Lender’s Loans, its LC Exposure and its Swingline Loans at such time.

“Scheduled Redetermination” has the meaning assigned such term in Section 2.07(b).

“Scheduled Redetermination Date” means the date on which a Borrowing Base that has been redetermined pursuant to a Scheduled Redetermination becomes effective as provided in Section 2.07(d).

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“SEC” means the Securities and Exchange Commission or any successor Governmental Authority.

“Security Instruments” means any Guaranty Agreement, any Pledge – Borrower, the Reaffirmation Agreements and all assignments, mortgages, deeds of trust, amendments and supplements to mortgages and deeds of trust, and all other agreements, instruments or certificates described or referred to in Exhibit C, and any and all other agreements, instruments or certificates now or hereafter executed and delivered by the Borrower or any other Person (other than Swap Agreements with the Lenders or any Affiliate of a Lender or participation or similar agreements between any Lender and any other lender or creditor with respect to any Indebtedness pursuant to this Agreement) in connection with, or as security for the payment or performance of the Indebtedness, the Notes, this Agreement, or reimbursement obligations under the Letters of Credit, as such agreements may be amended, modified, supplemented or restated from time to time.

“Senior Convertible Notes” means those certain senior convertible notes issued and sold by the Borrower in accordance with and pursuant to the terms and provisions of the Senior Convertible Notes indenture, in the aggregate principal amount of $287,500,000, due on or about April 1, 2027. For purposes of this Agreement, the Senior Convertible Notes shall not be deemed a Swap Agreement subject to the prohibitions of Section 9.18.

“S&P” means Standard & Poor’s Ratings Group, a division of The McGraw-Hill Companies, Inc., and any successor thereto that is a nationally recognized rating agency.

“Special Redetermination” has the meaning assigned such term in Section 2.07(b).

“Special Redetermination Date” means the date on which a Borrowing Base that has been redetermined pursuant to a Special Redetermination becomes effective as provided in Section 2.07(d).

“Statutory Reserve Rate” means a fraction (expressed as a decimal), the numerator of which is the number one and the denominator of which is the number one minus the aggregate of the maximum reserve percentages (including any marginal, special, emergency or supplemental reserves) expressed as a decimal established by the Board to which the Administrative Agent is subject, with respect to the Adjusted LIBO Rate, for eurocurrency funding (currently referred to as “Eurocurrency Liabilities” in Regulation D of the Board). Such reserve percentages shall include those imposed pursuant to such Regulation D. Eurodollar Loans shall be deemed to constitute eurocurrency funding and to be subject to such reserve requirements without benefit of or credit for proration, exemptions or offsets that may be available from time to time to any Lender under such Regulation D or any comparable regulation. The Statutory Reserve Rate shall be adjusted automatically on and as of the effective date of any change in any reserve percentage.

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“Subsidiary” means: (a) any Person of which at least a majority of the outstanding Equity Interests having by the terms thereof ordinary voting power to elect a majority of the board of directors, manager or other governing body of such Person (irrespective of whether or not at the time Equity Interests of any other class or classes of such Person shall have or might have voting power by reason of the happening of any contingency) is at the time directly or indirectly owned or controlled by the Borrower or one or more of its Subsidiaries and (b) any partnership of which the Borrower or any of its Subsidiaries is a general partner. Unless otherwise indicated herein, each reference to the term “Subsidiary” shall mean a Subsidiary of the Borrower.

“Substantial Portion” means, with respect to the Property of the Borrower and its Subsidiaries, Property which represents more than 10% of the consolidated assets of the Borrower and its Subsidiaries or property which is responsible for more than 10% of the consolidated net sales or of the consolidated net income of the Borrower and its Subsidiaries, in each case, as would be shown in the consolidated financial statements of the Borrower and its Subsidiaries at the beginning of the twelve-month period ending with the month in which such determination is made (or if financial statements have not been delivered hereunder for that month which begins the twelve-month period, then the financial statements delivered hereunder for the quarter ending immediately prior to that month).

“Supermajority Lenders” means, at any time while no Loans or LC Exposure is outstanding, Lenders having at least sixty-six and two-thirds percent (66-2/3%) of the Aggregate Commitments; and at any time while any Loans or LC Exposure is outstanding, Lenders holding at least sixty-six and two-thirds percent (66-2/3%) of the outstanding aggregate principal amount of the Loans or participation interests in Letters of Credit (without regard to any sale by a Lender of a participation in any Loan under Section 12.04(c)).

“Swap Agreement” means any agreement with respect to any swap, forward, future or derivative transaction or option or similar agreement, whether exchange traded, “over-the-counter” or otherwise, involving, or settled by reference to, one or more rates, currencies, commodities, equity or debt instruments or securities, or economic, financial or pricing indices or measures of economic, financial or pricing risk or value or any similar transaction or any combination of these transactions; provided that no phantom stock or similar plan providing for payments only on account of services provided by current or former directors, officers, employees or consultants of the Borrower or the Subsidiaries shall be a Swap Agreement.

“Swingline Lender” means Wachovia Bank, National Association, in its capacity as a lender of Swingline Loans hereunder and Wells Fargo Bank, N.A., in its capacity as a lender of Swingline Loans hereunder.

“Swingline Loan” means a Loan made pursuant to Section 2.09.

“Synthetic Leases” means, in respect of any Person, all leases which shall have been, or should have been, in accordance with GAAP, treated as operating leases on the financial statements of the Person liable (whether contingently or otherwise) for the payment of rent thereunder and which were properly treated as indebtedness for borrowed money for purposes of U.S. federal income taxes, if the lessee in respect thereof is obligated to either purchase for an amount in excess of, or pay upon early termination an amount in excess of, 80% of the residual

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value of the Property subject to such operating lease upon expiration or early termination of such lease.

“Taxes” means any and all present or future taxes, levies, imposts, duties, deductions, charges or withholdings imposed by any Governmental Authority.

“Termination Date” means the earlier of the Maturity Date and the date of termination of the Commitments.

“Total Debt” means, at any date, all Debt of the Borrower and the Consolidated Subsidiaries on a consolidated basis, exclusive of all accounts payable, accrued expenses, liabilities or other obligations to pay the deferred purchase price of Property or services to the extent any of same was included in Debt of the Borrower and the Consolidated Subsidiaries on a consolidated basis.

“Transactions” means, with respect to (a) the Borrower, the execution, delivery and performance by the Borrower of this Agreement, and each other Loan Document to which it is a party, the borrowing of Loans, the use of the proceeds thereof and the issuance of Letters of Credit hereunder, and the grant of Liens by the Borrower on Mortgaged Properties and other Properties pursuant to the Security Instruments and (b) each Material Subsidiary, the execution, delivery and performance by such Material Subsidiary of each Loan Document to which it is a party, the guaranteeing of the Indebtedness and the other obligations under the Guaranty Agreement by such Material Subsidiary and such Material Subsidiary’s grant of the security interests and provision of collateral thereunder, and the grant of Liens by such Material Subsidiary on Mortgaged Properties and other Properties pursuant to the Security Instruments.

“Type” means, when used in reference to any Loan or Borrowing, refers to whether the rate of interest on such Loan, or on the Loans comprising such Borrowing, is determined by reference to the Alternate Base Rate or the Adjusted LIBO Rate.

“Wholly-Owned Subsidiary” means any Subsidiary of which all of the outstanding Equity Interests (other than any directors’ qualifying shares mandated by applicable law), on a fully-diluted basis, are owned by the Borrower or one or more of the Wholly-Owned Subsidiaries.

Section 1.03 Types of Loans and Borrowings. For purposes of this Agreement, Loans and Borrowings, respectively, may be classified and referred to by Type (e.g., a “Eurodollar Loan” or a “Eurodollar Borrowing”).

Section 1.04 Terms Generally. The definitions of terms herein shall apply equally to the singular and plural forms of the terms defined. Whenever the context may require, any pronoun shall include the corresponding masculine, feminine and neuter forms. The words “include”, “includes” and “including” shall be deemed to be followed by the phrase “without limitation.” The word “will” shall be construed to have the same meaning and effect as the word “shall.” Unless the context requires otherwise (a) any definition of or reference to any agreement, instrument or other document herein shall be construed as referring to such agreement, instrument or other document as from time to time amended, supplemented or otherwise modified (subject to any restrictions on such amendments, supplements or

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modifications set forth herein), (b) any reference herein to any Person shall be construed to include such Person’s successors and assigns (subject to the restrictions contained herein), (c) the words “herein”, “hereof” and “hereunder”, and words of similar import, shall be construed to refer to this Agreement in its entirety and not to any particular provision hereof and (d) all references herein to Articles, Sections, Annexes, Exhibits and Schedules shall be construed to refer to Articles and Sections of, and Annexes, Exhibits and Schedules to, this Agreement.

Section 1.05 Accounting Terms and Determinations; GAAP. Unless otherwise specified herein, all accounting terms used herein shall be interpreted, all determinations with respect to accounting matters hereunder shall be made, and all financial statements and certificates and reports as to financial matters required to be furnished to the Administrative Agent or the Lenders hereunder shall be prepared, in accordance with GAAP, applied on a basis consistent with the Financial Statements except for changes in which Borrower’s independent certified public accountants concur and which are disclosed to Administrative Agent on the next date on which financial statements are required to be delivered to the Lenders pursuant to Section 8.01(a); provided that, unless the Borrower and the Majority Lenders shall otherwise agree in writing, no such change shall modify or affect the manner in which compliance with the covenants contained herein is computed such that all such computations shall be conducted utilizing financial information presented consistently with prior periods.

ARTICLE II

The Credits

Section 2.01 Commitments. Subject to the terms and conditions set forth herein, each Lender agrees to make Loans to the Borrower during the Availability Period in an aggregate principal amount that will not result in (a) such Lender’s Revolving Credit Exposure exceeding such Lender’s Commitment or (b) the Aggregate Revolving Credit Exposures exceeding the lesser of (i) the Borrowing Base then in effect or (ii) the Aggregate Commitments then in effect. Within the foregoing limits and subject to the terms and conditions set forth herein, the Borrower may borrow, repay and reborrow the Loans.

Section 2.02 Loans and Borrowings.

(a) Borrowings; Several Obligations. Each Loan shall be made as part of a Borrowing consisting of Loans made by the Lenders ratably in accordance with their respective Commitments. The failure of any Lender to make any Loan required to be made by it shall not relieve any other Lender of its obligations hereunder; provided that the Commitments are several and no Lender shall be responsible for any other Lender’s failure to make Loans as required.

(b) Types of Loans. Subject to Section 3.03, each Borrowing shall be comprised entirely of ABR Loans or Eurodollar Loans as the Borrower may request in accordance herewith. Each Lender at its option may make any Eurodollar Loan by causing any domestic or foreign branch or Affiliate of such Lender to make such Loan; provided that any exercise of such option shall not affect the obligation of the Borrower to repay such Loan in accordance with the terms of this Agreement.

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(c) Minimum Amounts; Limitation on Number of Borrowings. At the commencement of each Interest Period for any Eurodollar Borrowing, such Borrowing shall be in an aggregate amount that is an integral multiple of $1,000,000 and not less than $3,000,000. At the time that each ABR Borrowing is made, such Borrowing shall be in an aggregate amount that is an integral multiple of $500,000 and not less than $1,000,000; provided that an ABR Borrowing may be in an aggregate amount that is equal to the entire unused balance of the total Commitments or that is required to finance the reimbursement of an LC Disbursement as contemplated by Section 2.08(f). Borrowings of more than one Type may be outstanding at the same time; provided that there shall not at any time be more than a total of six (6) Eurodollar Borrowings outstanding. Notwithstanding any other provision of this Agreement, the Borrower shall not be entitled to request, or to elect to convert or continue, any Borrowing if the Interest Period requested with respect thereto would end after the Maturity Date.

(d) Notes. The Loans made by each Lender shall be evidenced by a single promissory note of the Borrower in substantially the form of Exhibit A, dated, in the case of (i) any Lender party hereto as of the date of this Agreement, as of the date of this Agreement, (ii) any Lender that becomes a party hereto pursuant to an Assignment and Assumption, as of the effective date of the assignment and assumption, or (iii) any Lender that becomes a party hereto in connection with an increase in the Aggregate Commitment pursuant to Section 2.06(c), as of the effective date of such increase, payable to the order of such Lender in a principal amount equal to its Commitment as in effect on such date, and otherwise duly completed. In the event that any Lender’s Commitment increases or decreases for any reason (whether pursuant to Section 2.06, Section 12.04(b) or otherwise), the Borrower shall deliver or cause to be delivered on the effective date of such increase or decrease, a new Note payable to the order of such Lender in a principal amount equal to its Commitment after giving effect to such increase or decrease, and otherwise duly completed. The date, amount, Type, interest rate and, if applicable, Interest Period of each Loan made by each Lender, and all payments made on account of the principal thereof, shall be recorded by such Lender on its books for its Note, and, prior to any transfer, may be endorsed by such Lender on a schedule attached to such Note or any continuation thereof or on any separate record maintained by such Lender. Failure to make any such notation or to attach a schedule shall not affect any Lender’s or the Borrower’s rights or obligations in respect of such Loans or affect the validity of such transfer by any Lender of its Note.

Section 2.03 Requests for Borrowings. To request a Borrowing, the Borrower shall notify the Administrative Agent of such request by telephone (a) in the case of a Eurodollar Borrowing, not later than 1:00 p.m., Charlotte, North Carolina time, three Business Days before the date of the proposed Borrowing, or (b) in the case of a ABR Borrowing, including an ABR Borrowing to finance the reimbursement of an LC Disbursement as contemplated by Section 2.08(f), not later than 1:00 p.m., Charlotte, North Carolina time, on the date of the proposed Borrowing, which date shall be a Business Day in the United States. Each such telephonic Borrowing Request shall be irrevocable and shall be confirmed promptly by hand delivery or telecopy to the Administrative Agent of a written Borrowing Request in a form approved by the Administrative Agent and signed by the Borrower. Each such telephonic and written Borrowing Request shall specify the following information in compliance with Section 2.02:

(i) the aggregate amount of the requested Borrowing;

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(ii) the date of such Borrowing, which shall be a Business Day in the United States;

(iii) whether such Borrowing is to be an ABR Borrowing or a Eurodollar Borrowing;

(iv) in the case of a Eurodollar Borrowing, the initial Interest Period to be applicable thereto, which shall be a period contemplated by the definition of the term “Interest Period”;

(v) the amount of the then effective Borrowing Base, the current Aggregate Revolving Credit Exposures (without regard to the requested Borrowing) and the pro forma Aggregate Revolving Credit Exposures (giving effect to the requested Borrowing); and

(vi) the location and number of the Borrower’s account to which funds are to be disbursed, which shall comply with the requirements of Section 2.05.

If no election as to the Type of Borrowing is specified, then the requested Borrowing shall be an ABR Borrowing. If no Interest Period is specified with respect to any requested Eurodollar Borrowing, then the Borrower shall be deemed to have selected an Interest Period of one month’s duration. Each Borrowing Request shall constitute a representation that the amount of the requested Borrowing shall not cause the Aggregate Revolving Credit Exposures to exceed the Aggregate Commitments then in effect.

Promptly following receipt of a Borrowing Request in accordance with this Section 2.03, the Administrative Agent shall advise each Lender of the details thereof and of the amount of such Lender’s Loan to be made as part of the requested Borrowing.

Section 2.04 Interest Elections.

(a) Conversion and Continuance. Each Borrowing initially shall be of the Type specified in the applicable Borrowing Request and, in the case of a Eurodollar Borrowing, shall have an initial Interest Period as specified in such Borrowing Request. Thereafter, the Borrower may elect to convert such Borrowing to a different Type or to continue such Borrowing and, in the case of a Eurodollar Borrowing, may elect Interest Periods therefor, all as provided in this Section 2.04. The Borrower may elect different options with respect to different portions of the affected Borrowing, in which case each such portion shall be allocated ratably among the Lenders holding the Loans comprising such Borrowing, and the Loans comprising each such portion shall be considered a separate Borrowing. This Section, as it refers to Types of Loans, shall not apply to Swingline Loans, which may not be converted or continued.

(b) Interest Election Requests. To make an election pursuant to this Section 2.04, the Borrower shall notify the Administrative Agent of such election by telephone by the time that a Borrowing Request would be required under Section 2.03 if the Borrower were requesting a Borrowing of the Type resulting from such election to be made on the effective date of such election. Each such telephonic Interest Election Request shall be irrevocable and shall be confirmed promptly by hand delivery or telecopy to the Administrative Agent of a written

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Interest Election Request in a form approved by the Administrative Agent and signed by the Borrower.

(c) Information in Interest Election Requests. Each telephonic and written Interest Election Request shall specify the following information in compliance with Section 2.02:

(i) the Borrowing to which such Interest Election Request applies and, if different options are being elected with respect to different portions thereof, the portions thereof to be allocated to each resulting Borrowing (in which case the information to be specified pursuant to Section 2.04(c)(iii) and (iv) shall be specified for each resulting Borrowing);

(ii) the effective date of the election made pursuant to such Interest Election Request, which shall be a Business Day;

(iii) whether the resulting Borrowing is to be an ABR Borrowing or a Eurodollar Borrowing; and

(iv) if the resulting Borrowing is a Eurodollar Borrowing, the Interest Period to be applicable thereto after giving effect to such election, which shall be a period contemplated by the definition of the term “Interest Period”.

(d) If any such Interest Election Request requests a Eurodollar Borrowing but does not specify an Interest Period, then the Borrower shall be deemed to have selected an Interest Period of one month’s duration.

(e) Notice to Lenders by the Administrative Agent. Promptly following receipt of an Interest Election Request, the Administrative Agent shall advise each Lender of the details thereof and of such Lender’s portion of each resulting Borrowing.

(f) Effect of Failure to Deliver Timely Interest Election Request and Events of Default and Borrowing Base Deficiencies on Interest Election. If the Borrower fails to deliver a timely Interest Election Request with respect to a Eurodollar Borrowing prior to the end of the Interest Period applicable thereto, then, unless such Borrowing is repaid as provided herein, at the end of such Interest Period such Borrowing shall be converted to an ABR Borrowing. Notwithstanding any contrary provision hereof, if an Event of Default has occurred and is continuing or if the Aggregate Revolving Credit Exposures exceed the Borrowing Base then in effect: (i) no outstanding Borrowing may be converted to or continued as a Eurodollar Borrowing (and any Interest Election Request that requests the conversion of any Borrowing to, or continuation of any Borrowing as, a Eurodollar Borrowing shall be ineffective) and (ii) unless repaid, each Eurodollar Borrowing shall be converted to an ABR Borrowing at the end of the Interest Period applicable thereto.

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Section 2.05 Funding of Borrowings.

(a) Funding by Lenders. Each Lender shall make each Loan to be made by it hereunder on the proposed date thereof by wire transfer of immediately available funds by 2:00 p.m. Charlotte, North Carolina time, to the account of the Administrative Agent most recently designated by it for such purpose by notice to the Lenders; provided that Swingline Loans shall be made as provided in Section 2.09. The Administrative Agent will make such Loans available to the Borrower by promptly crediting the amounts so received, in like funds, to an account of the Borrower maintained with the Administrative Agent in Charlotte, North Carolina and designated by the Borrower in the applicable Borrowing Request; provided that ABR Loans made to finance the reimbursement of an LC Disbursement as provided in Section 2.08(f) shall be remitted by the Administrative Agent to the Issuing Bank.

(b) Presumption of Funding by the Lenders. Unless the Administrative Agent shall have received written notice from a Lender prior to the proposed date of any Borrowing that such Lender will not make available to the Administrative Agent such Lender’s share of such Borrowing, the Administrative Agent may assume that such Lender has made such share available on such date in accordance with Section 2.05(a) and may, in reliance upon such assumption, make available to the Borrower a corresponding amount. In such event, if a Lender has not in fact made its share of the applicable Borrowing available to the Administrative Agent, then the applicable Lender and the Borrower severally agree to pay to the Administrative Agent forthwith on demand such corresponding amount with interest thereon, for each day from and including the date such amount is made available to the Borrower to but excluding the date of payment to the Administrative Agent, at (i) in the case of such Lender, the greater of the Federal Funds Effective Rate and a rate determined by the Administrative Agent in accordance with banking industry rules on interbank compensation or (ii) in the case of the Borrower, the interest rate applicable to ABR Loans; provided, however, such demands shall be made first upon the applicable Lender and then upon the Borrower. If such Lender pays such amount to the Administrative Agent, then such amount shall constitute such Lender’s Loan included in such Borrowing.

Section 2.06 Termination, Reduction and Increase of Aggregate Commitment.

(a) Scheduled Termination of Commitments. Unless previously terminated, the Commitments shall terminate on the Maturity Date. If at any time the Maximum Credit Amount or the Borrowing Base is terminated or reduced to zero, then the Commitments shall terminate on the effective date of such termination or reduction.

(b) Optional Termination and Reduction of Aggregate Commitment.

(i) The Borrower may at any time terminate, or from time to time reduce, the Aggregate Commitment; provided that (A) each reduction of the Aggregate Commitment shall be in an amount that is an integral multiple of $1,000,000 and not less than $5,000,000 and (B) the Borrower shall not terminate or reduce the Aggregate Commitment if, after giving effect to any concurrent prepayment of the Loans in accordance with Section 3.04(c), the Aggregate Revolving Credit Exposures would exceed the Aggregate Commitments.

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(ii) The Borrower shall notify the Administrative Agent of any election to terminate or reduce the Aggregate Commitment under Section 2.06(b)(i) at least three Business Days prior to the effective date of such termination or reduction, specifying such election and the effective date thereof. Promptly following receipt of any notice, the Administrative Agent shall advise the Lenders of the contents thereof. Each notice delivered by the Borrower pursuant to this Section 2.06(b)(ii) shall be irrevocable. Any termination or reduction of the Aggregate Commitment shall be permanent and may not be reinstated except pursuant to Section 2.06(c). Each reduction of the Aggregate Commitment shall be made ratably among the Lenders in accordance with each Lender’s Applicable Percentage.

(i) Subject to the conditions set forth in Section 2.06(c)(ii), the Borrower may increase the Aggregate Commitment then in effect by increasing the Commitment of a Lender or by causing a Person acceptable to the Administrative Agent that at such time is not a Lender to become a Lender (an “Additional Lender”).

(ii) Any increase in the Aggregate Commitment shall be subject to the following additional conditions:

(A) such increase shall not be less than $10,000,000 unless the Administrative Agent otherwise consents;

(B) no Default shall have occurred and be continuing at the effective date of such increase;

(C) on the effective date of such increase, no Eurodollar Borrowings shall be outstanding (or if any Eurodollar Borrowings are outstanding, then the effective date of such increase shall be the last day of the Interest Period in respect of such Eurodollar Borrowings);

(D) each Lender shall have had the option to increase its Commitment by its Applicable Percentage of the amount of such increase; provided that, no Lender’s Commitment may be increased without the consent of such Lender;

(E) if the Borrower elects to increase the Aggregate Commitment by increasing the Commitment of a Lender, the Borrower and such Lender shall execute and deliver to the Administrative Agent a certificate substantially in the form of Exhibit E (a “Commitment Increase Certificate”), and further, in the event a new Note is required to reflect the increased Commitment of such Lender, then in that case, the Borrower shall deliver a new Note (after presentation of same to Borrower by the Administrative Agent) payable to the order of such Lender in a principal amount equal to its Commitment after giving effect to such increase, and otherwise duly completed, together with a processing and recordation fee of $3,500 payable by the Borrower to the Administrative Agent and the reimbursement by the Borrower of the reasonable legal fees of counsel to the Administrative Agent; and

(F) If the Borrower elects to increase the Aggregate Commitment by causing an Additional Lender to become a party to this Agreement, then the

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Borrower and such Additional Lender shall execute and deliver to the Administrative Agent a certificate substantially in the form of Exhibit F (an “Additional Lender Certificate”), together with an Administrative Questionnaire and a processing and recordation fee of $3,500 payable by such Additional Lender and the reimbursement by the Borrower of the reasonable legal fees of counsel to the Administrative Agent, and the Borrower shall deliver a Note (after presentation of same to Borrower by the Administrative Agent) payable to the order of such Additional Lender in a principal amount equal to its Commitment, and otherwise duly completed.

(iii) Subject to acceptance and recording thereof pursuant to Section 2.06(c)(iv), from and after the effective date specified in the Commitment Increase Certificate or the Additional Lender Certificate (or if any Eurodollar Borrowings are outstanding, then the last day of the Interest Period in respect of such Eurodollar Borrowings): (A) the amount of the Aggregate Commitment shall be increased as set forth therein, and (B) in the case of an Additional Lender Certificate, any Additional Lender party thereto shall be a party to this Agreement and the other Loan Documents and have the rights and obligations of a Lender under this Agreement and the other Loan Documents. In addition, the Lender or the Additional Lender, as applicable, shall purchase a pro rata portion of the Aggregate Revolving Credit Exposures of each of the other Lenders (and such Lenders hereby agree to sell and to take all such further action to effectuate such sale) such that each Lender (including any Additional Lender, if applicable) shall hold its Applicable Percentage of the Aggregate Revolving Credit Exposures after giving effect to the increase in the Aggregate Commitment.

(iv) Upon its receipt of a duly completed Commitment Increase Certificate or an Additional Lender Certificate, executed by the Borrower and the Lender or the Borrower and the Additional Lender party thereto, as applicable, the processing and recording fee referred to in Section 2.06(c)(ii), the Administrative Questionnaire referred to in Section 2.06(c)(ii), if applicable, and the written consent of the Administrative Agent to such increase required by Section 2.06(c)(i), the Administrative Agent shall accept such Commitment Increase Certificate or Additional Lender Certificate and record the information contained therein in the Register required to be maintained by the Administrative Agent pursuant to Section 12.04(b)(iv). No increase in the Aggregate Commitment shall be effective for purposes of this Agreement unless it has been recorded in the Register as provided in this Section 2.06(c)(iv).

(v) After giving effect to an increase in the Aggregate Commitment, the Aggregate Commitment shall not exceed the Maximum Credit Amount.

Section 2.07 Borrowing Base.

(a) Initial Borrowing Base. For the period from and including the Effective Date to but excluding the first Redetermination Date, the amount of the Borrowing Base shall be $900,000,000. Notwithstanding the foregoing, the Borrowing Base shall be subject to further adjustments from time to time pursuant to this Section 2.07 and Section 8.13(c), Section 9.02(k), Section 9.11(a), Section 9.12 and Section 9.20.

(b) Scheduled, Interim and Special Redeterminations. Subject to Section 2.07(d), the Borrowing Base shall be redetermined (a “Scheduled Redetermination”) no later than April 1 and October 1 of each year, commencing October 1, 2009. In addition, the

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Borrower may, by notifying the Administrative Agent thereof, and the Administrative Agent may, at the direction of the Majority Lenders, by notifying the Borrower thereof, elect to cause the Borrowing Base to be redetermined once between each Scheduled Redetermination (an “Interim Redetermination”) in accordance with this Section 2.07. In addition to the Scheduled Redetermination and the Interim Redetermination, the Administrative Agent, acting alone or at the direction of the Majority Lenders, shall be permitted to make a redetermination (a “Special Redetermination”) of the Borrowing Base on March 15, 2012.

(i) Each Scheduled Redetermination, each Interim Redetermination and the Special Redetermination shall be effectuated as follows: Upon receipt by the Administrative Agent of (A) the Reserve Report and the certificate required to be delivered by the Borrower to the Administrative Agent, in the case of a Scheduled Redetermination and the Special Redetermination, pursuant to Section 8.12(a) and (c), and, in the case of an Interim Redetermination, pursuant to Section 8.12(b) and (c), and (B) such other reports, data and supplemental information, including, without limitation, the information provided pursuant to Section 8.12(c), as may, from time to time, be reasonably requested by the Majority Lenders (the Reserve Report, such certificate and such other reports, data and supplemental information being the “Engineering Reports”), the Administrative Agent shall evaluate the information contained in the Engineering Reports and shall, in good faith, propose a new Borrowing Base (the “Proposed Borrowing Base”) based upon such information and such other information (including the status of title information with respect to the Oil and Gas Properties as described in the Engineering Reports and the existence of any other Debt) as the Administrative Agent deems appropriate and consistent with its normal oil and gas lending criteria as it exists at the particular time.

(ii) The Administrative Agent shall notify the Borrower and the Lenders of the Proposed Borrowing Base (the “Proposed Borrowing Base Notice”):

(A) in the case of a Scheduled Redetermination (1) if the Administrative Agent shall have received the Engineering Reports required to be delivered by the Borrower pursuant to Section 8.12(a) and (c) in a timely and complete manner, then on or before March 15th and September 15th of such year following the date of delivery or (2) if the Administrative Agent shall not have received the Engineering Reports required to be delivered by the Borrower pursuant to Section 8.12(a) and (c) in a timely and complete manner, then promptly after the Administrative Agent has received complete Engineering Reports from the Borrower and has had a reasonable opportunity to determine the Proposed Borrowing Base in accordance with Section 2.07(c)(i); and

(B) in the case of an Interim Redetermination and the Special Redetermination, promptly, and in any event, within fifteen (15) days after the Administrative Agent has received the required Engineering Reports.

(iii) Any Proposed Borrowing Base that would increase the Borrowing Base then in effect must be approved or deemed to have been approved by all of the

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Lenders as provided in this Section 2.07(c)(iii); and any Proposed Borrowing Base that would decrease or maintain the Borrowing Base then in effect must be approved or be deemed to have been approved by the Supermajority Lenders as provided in this Section 2.07(c)(iii). Upon receipt of the Proposed Borrowing Base Notice, each Lender shall have fifteen (15) days to agree with the Proposed Borrowing Base or disagree with the Proposed Borrowing Base by proposing an alternate Borrowing Base. If at the end of such fifteen (15) days, any Lender has not communicated its approval or disapproval in writing to the Administrative Agent, such silence shall be deemed to be an approval of the Proposed Borrowing Base. If, at the end of such 15-day period, all of the Lenders, in the case of a Proposed Borrowing Base that would increase the Borrowing Base then in effect, or the Supermajority Lenders, in the case of a Proposed Borrowing Base that would decrease or maintain the Borrowing Base then in effect, have approved or deemed to have approved, as aforesaid, then the Proposed Borrowing Base shall become the new Borrowing Base, effective on the date specified in Section 2.07(d). If, however, at the end of such 15-day period, all of the Lenders or the Supermajority Lenders, as applicable, have not approved or deemed to have approved, as aforesaid, then for purposes of this Section 2.07, the Administrative Agent shall poll the Lenders to ascertain the highest Borrowing Base then acceptable (aa) to the Supermajority Lenders, if such amount would decrease the Borrowing Base then in effect, or (bb) to all of the Lenders, if such amount would increase the Borrowing Base then in effect, which amount shall become the new Borrowing Base, effective on the date specified in Section 2.07(d).

(iv) If any Lender refuses to approve a Proposed Borrowing Base pursuant to Section 2.07(c)(iii), the Borrower shall have the right to cause the Commitment of such dissenting Lender to be replaced pursuant to Section 5.06.

(d) Effectiveness of a Redetermined Borrowing Base. After a redetermined Borrowing Base is approved or is deemed to have been approved by all of the Lenders or the Supermajority Lenders, as applicable, pursuant to Section 2.07(c)(iii), the Administrative Agent shall notify the Borrower and the Lenders of the amount of the redetermined Borrowing Base (the “New Borrowing Base Notice”), and such amount shall become the new Borrowing Base, effective and applicable to the Borrower, the Agents, the Issuing Bank and the Lenders:

(A) in the case of a Scheduled Redetermination, (1) if the Administrative Agent shall have received the Engineering Reports required to be delivered by the Borrower pursuant to Section 8.12(a) and (c) in a timely and complete manner, then no later than April 1 or October 1, as applicable, following such notice, or (2) if the Administrative Agent shall not have received the Engineering Reports required to be delivered by the Borrower pursuant to Section 8.12(a) and (c) in a timely and complete manner, then on the Business Day next succeeding delivery of such notice; and

(B) in the case of an Interim Redetermination and a Special Redetermination, on the Business Day next succeeding delivery of such notice.

(C) Such amount shall then become the Borrowing Base until the next Scheduled Redetermination Date, the next Interim Redetermination Date, the Special

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Redetermination Date or the next adjustment to the Borrowing Base under Section 8.13(c), Section 9.02(k), Section 9.11(a) or Section 9.12, whichever occurs first. Notwithstanding the foregoing, no Scheduled Redetermination, Interim Redetermination or Special Redetermination shall become effective until the New Borrowing Base Notice related thereto is received by the Borrower.

Section 2.08 Letters of Credit.

(a) General. Subject to the terms and conditions set forth herein, the Borrower may request the issuance of Letters of Credit for its own account or for the account of any of its Material Subsidiaries, in a form reasonably acceptable to the Administrative Agent and the Issuing Bank, at any time and from time to time during the Availability Period; provided that the Borrower may not request the issuance, amendment, renewal or extension of Letters of Credit hereunder if the Aggregate Revolving Exposures exceed the Borrowing Base then in effect at such time or the Aggregate Revolving Exposures would exceed the Borrowing Base then in effect as a result thereof. In the event of any inconsistency between the terms and conditions of this Agreement and the terms and conditions of any form of letter of credit application or other agreement submitted by the Borrower to, or entered into by the Borrower with, the Issuing Bank relating to any Letter of Credit, the terms and conditions of this Agreement shall control.

(b) Notice of Issuance, Amendment, Renewal, Extension; Certain Conditions. To request the issuance of a Letter of Credit (or the amendment, renewal or extension of an outstanding Letter of Credit), the Borrower shall hand deliver or telecopy (or transmit by electronic communication, if arrangements for doing so have been approved by the Issuing Bank) to the Issuing Bank and the Administrative Agent (not less than three (3) Business Days in advance of the requested date of issuance, amendment, renewal or extension) a notice:

(i) requesting the issuance of a Letter of Credit or identifying the Letter of Credit to be amended, renewed or extended;

(ii) specifying the date of issuance, amendment, renewal or extension (which shall be a Business Day);

(iii) specifying the date on which such Letter of Credit is to expire (which shall comply with Section 2.08(d));

(iv) specifying the amount of such Letter of Credit;

(v) specifying the name and address of the beneficiary thereof and such other information as shall be necessary to prepare, amend, renew or extend such Letter of Credit; and

(vi) specifying the amount of the then effective Borrowing Base, the current Aggregate Revolving Credit Exposures (without regard to the requested Letter of Credit or the requested amendment, renewal or extension of an outstanding Letter of Credit) and the pro forma Aggregate Revolving Credit Exposures (giving effect to the requested Letter of Credit or the requested amendment, renewal or extension of an outstanding Letter of Credit).

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Each notice shall constitute a representation that after giving effect to the requested issuance, amendment, renewal or extension, as applicable, (i) the LC Exposure shall not exceed the LC Commitment and (ii) the Aggregate Revolving Credit Exposures shall not exceed the Aggregate Commitments. Notwithstanding the foregoing, the Issuing Bank shall not at any time be obligated to issue, amend, renew or extend any Letter of Credit if any Lender is at such time an Impacted Lender hereunder, unless (x) the Borrower cash collateralizes such Impacted Lender’s portion of the total LC Exposure (calculated after giving effect to the issuance, amendment, renewal or extension of such Letter of Credit) in accordance with the procedures set forth in Section 2.08(k) or (y) the Issuing Bank has entered into arrangements satisfactory to the Issuing Bank in its sole discretion with the Borrower or such Impacted Lender to eliminate the Issuing Bank’s risk with respect to such Impacted Lender’s portion of the total LC Exposure.

(c) If requested by the Issuing Bank, the Borrower also shall submit a letter of credit application on the Issuing Bank’s standard form in connection with any request for a Letter of Credit.

(d) Expiration Date. Each Letter of Credit shall expire at or prior to the close of business on the earlier of (i) the date one year after the date of the issuance of such Letter of Credit (or, in the case of any renewal or extension thereof, one year after such renewal or extension) and (ii) the date that is five Business Days prior to the Maturity Date.

(e) Participations. By the issuance of a Letter of Credit (or an amendment to a Letter of Credit increasing the amount thereof) and without any further action on the part of the Issuing Bank or the Lenders, the Issuing Bank hereby grants to each Lender, and each Lender hereby acquires from the Issuing Bank, a participation in such Letter of Credit equal to such Lender’s Applicable Percentage of the aggregate amount available to be drawn under such Letter of Credit. In consideration and in furtherance of the foregoing, each Lender hereby absolutely and unconditionally agrees to pay to the Administrative Agent, for the account of the Issuing Bank, such Lender’s Applicable Percentage of each LC Disbursement made by the Issuing Bank and not reimbursed by the Borrower on the date due as provided in Section 2.08(f), or of any reimbursement payment required to be refunded to the Borrower for any reason. Each Lender acknowledges and agrees that its obligation to acquire participations pursuant to this Section 2.08(e) in respect of Letters of Credit is absolute and unconditional and shall not be affected by any circumstance whatsoever, including any amendment, renewal or extension of any Letter of Credit or the occurrence and continuance of a Default or reduction or termination of the Commitments, and that each such payment shall be made without any offset, abatement, withholding or reduction whatsoever.

(f) Reimbursement. If the Issuing Bank shall make any LC Disbursement in respect of a Letter of Credit, the Borrower shall reimburse such LC Disbursement by paying to the Administrative Agent an amount equal to such LC Disbursement not later than 12:00 noon, Charlotte, North Carolina time, on the date that such LC Disbursement is made, if the Borrower shall have received notice of such LC Disbursement prior to 12:00 noon, Charlotte, North Carolina time, on such date, or, if such notice has not been received by the Borrower prior to such time on such date, then not later than 12:00 noon Charlotte, North Carolina time, on (i) the Business Day that the Borrower receives such notice, if such notice is received prior to 12:00 noon, Charlotte, North Carolina time, on the day of receipt, or (ii) the Business Day immediately

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following the day that the Borrower receives such notice, if such notice is not received prior to such time on the day of receipt; provided that if such LC Disbursement is not less than $1,000,000, the Borrower may, subject to the conditions to Borrowing set forth herein, request in accordance with Section 2.03 (or Section 2.09 in the case of a Swingline Loan) that such payment be financed with a ABR Borrowing or a Swingline Loan in an equivalent amount and, to the extent so financed, the Borrower’s obligation to make such payment shall be discharged and replaced by the resulting ABR Borrowing or Swingline Loan. If the Borrower makes such a request (and if the Borrower fails to make such a request and has not made the relevant reimbursement, it shall be deemed to have made such a request), the Administrative Agent shall notify each Lender of the applicable LC Disbursement, the payment then due from the Borrower in respect thereof and such Lender’s Applicable Percentage thereof. Promptly following receipt of such notice, each Lender shall pay to the Administrative Agent its Applicable Percentage of the payment then due from the Borrower, in the same manner as provided in Section 2.05 with respect to Loans made by such Lender (and Section 2.05 shall apply, mutatis mutandis, to the payment obligations of the Lenders), and the Administrative Agent shall promptly pay to the Issuing Bank the amounts so received by it from the Lenders. Promptly following receipt by the Administrative Agent of any payment from the Borrower pursuant to this Section 2.08(f), the Administrative Agent shall distribute such payment to the Issuing Bank or, to the extent that Lenders have made payments pursuant to this Section 2.08(f) to reimburse the Issuing Bank, then to such Lenders and the Issuing Bank as their interests may appear.

(g) Obligations Absolute. The Borrower’s obligation to reimburse LC Disbursements as provided in Section 2.08(f) shall be absolute, unconditional and irrevocable, and shall be performed strictly in accordance with the terms of this Agreement under any and all circumstances whatsoever and irrespective of (i) any lack of validity or enforceability of any Letter of Credit, any Letter of Credit Agreement or this Agreement, or any term or provision therein, (ii) any draft or other document presented under a Letter of Credit proving to be forged, fraudulent or invalid in any respect or any statement therein being untrue or inaccurate in any respect, (iii) payment by the Issuing Bank under a Letter of Credit against presentation of a draft or other document that does not comply with the terms of such Letter of Credit or any Letter of Credit Agreement, or (iv) any other event or circumstance whatsoever, whether or not similar to any of the foregoing, that might, but for the provisions of this Section 2.08(g), constitute a legal or equitable discharge of, or provide a right of setoff against, the Borrower’s obligations hereunder. Neither the Administrative Agent, the Lenders nor the Issuing Bank, nor any of their Related Parties shall have any liability or responsibility by reason of or in connection with the issuance or transfer of any Letter of Credit or any payment or failure to make any payment thereunder (irrespective of any of the circumstances referred to in the preceding sentence), or any error, omission, interruption, loss or delay in transmission or delivery of any draft, notice or other communication under or relating to any Letter of Credit (including any document required to make a drawing thereunder), any error in interpretation of technical terms or any consequence arising from causes beyond the control of the Issuing Bank; provided that the foregoing shall not be construed to excuse the Issuing Bank from liability to the Borrower to the extent of any direct damages (as opposed to consequential damages, claims in respect of which are hereby waived by the Borrower to the extent permitted by applicable law) suffered by the Borrower that are caused by the Issuing Bank’s failure to exercise care when determining whether drafts and other documents presented under a Letter of Credit comply with the terms thereof. The parties hereto expressly agree that, in the absence of gross negligence or willful misconduct on the part of the

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Issuing Bank (as finally determined by a court of competent jurisdiction), the Issuing Bank shall be deemed to have exercised all requisite care in each such determination. In furtherance of the foregoing and without limiting the generality thereof, the parties agree that, with respect to documents presented which appear on their face to be in substantial compliance with the terms of a Letter of Credit, the Issuing Bank may, in its sole discretion, either accept and make payment upon such documents without responsibility for further investigation, regardless of any notice or information to the contrary, or refuse to accept and make payment upon such documents if such documents are not in strict compliance with the terms of such Letter of Credit.

(h) Disbursement Procedures. The Issuing Bank shall, promptly following its receipt thereof, examine all documents purporting to represent a demand for payment under a Letter of Credit. The Issuing Bank shall promptly notify the Administrative Agent and the Borrower by telephone (confirmed by telecopy) of such demand for payment and whether the Issuing Bank has made or will make an LC Disbursement thereunder; provided that any failure to give or delay in giving such notice shall not relieve the Borrower of its obligation to reimburse the Issuing Bank and the Lenders with respect to any such LC Disbursement.

(i) Interim Interest. If the Issuing Bank shall make any LC Disbursement, then, until the Borrower shall have reimbursed the Issuing Bank for such LC Disbursement (either with its own funds or a Borrowing under Section 2.08(f)), the unpaid amount thereof shall bear interest, for each day from and including the date such LC Disbursement is made to but excluding the date that the Borrower reimburses such LC Disbursement, at the rate per annum then applicable to ABR Loans. Interest accrued pursuant to this Section 2.08(i) shall be for the account of the Issuing Bank, except that interest accrued on and after the date of payment by any Lender pursuant to Section 2.08(f) to reimburse the Issuing Bank shall be for the account of such Lender to the extent of such payment.

(j) Replacement of the Issuing Bank. The Issuing Bank may be replaced at any time by written agreement among the Borrower, the Administrative Agent, the replaced Issuing Bank and the successor Issuing Bank. The Administrative Agent shall notify the Lenders of any such replacement of the Issuing Bank. At the time any such replacement shall become effective, the Borrower shall pay all unpaid fees accrued for the account of the replaced Issuing Bank pursuant to Section 3.05(b). From and after the effective date of any such replacement, (i) the successor Issuing Bank shall have all the rights and obligations of the Issuing Bank under this Agreement with respect to Letters of Credit to be issued thereafter and (ii) references herein to the term “Issuing Bank” shall be deemed to refer to such successor or to any previous Issuing Bank, or to such successor and all previous Issuing Banks, as the context shall require. After the replacement of the Issuing Bank hereunder, the replaced Issuing Bank shall remain a party hereto and shall continue to have all the rights and obligations of the Issuing Bank under this Agreement with respect to Letters of Credit issued by it prior to such replacement, but shall not be required to issue additional Letters of Credit.

(k) Cash Collateralization. If (i) any Event of Default shall occur and be continuing and the Borrower receives notice from the Administrative Agent or the Majority Lenders demanding the deposit of cash collateral pursuant to this Section 2.08(k), (ii) the Borrower is required to pay to the Administrative Agent the excess attributable to an LC Exposure in connection with any prepayment pursuant to Section 3.04(c), (iii) the Borrower

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elects to cash collateralize the LC Exposure of any Impacted Lender pursuant to Section 2.08(b) or (iv) any Letter of Credit is outstanding at the time any Lender is an Impacted Lender and the Borrower receives written request from the Issuing Bank demanding the deposit of cash collateral pursuant to this Section 2.08(k), then the Borrower shall deposit, in an account with the Administrative Agent, in the name of the Administrative Agent and for the benefit of the Lenders, an amount in cash equal to, in the case of an Event of Default, the LC Exposure, and in the case of a payment required by Section 3.04(c), the amount of such excess as provided in Section 3.04(c), and in the case of an Impacted Lender, an amount in cash equal to such Impacted Lender’s portion of the total LC Exposure at such time as calculated pursuant to clause (x) of Section 2.08(b) (less any amounts already on deposit in such account representing cash collateral for any portion of such Impacted Lender’s portion of the total LC Exposure), as of such date plus any accrued and unpaid interest thereon; provided that the obligation to deposit such cash collateral shall become effective immediately, and such deposit shall become immediately due and payable, without demand or other notice of any kind, upon the occurrence of any Event of Default with respect to the Borrower or any Material Subsidiary described in Section 10.01(h) or Section 10.01(i). The Borrower hereby grants to the Administrative Agent, for the benefit of the Issuing Bank and the Lenders, an exclusive first priority and continuing perfected security interest in and Lien on such account and all cash, checks, drafts, certificates and instruments, if any, from time to time deposited or held in such account, all deposits or wire transfers made thereto, any and all investments purchased with funds deposited in such account, all interest, dividends, cash, instruments, financial assets and other Property from time to time received, receivable or otherwise payable in respect of, or in exchange for, any or all of the foregoing, and all proceeds, products, accessions, rents, profits, income and benefits therefrom, and any substitutions and replacements therefor. The Borrower’s obligation to deposit amounts pursuant to this Section 2.08(k) shall be absolute and unconditional, without regard to whether any beneficiary of any such Letter of Credit has attempted to draw down all or a portion of such amount under the terms of a Letter of Credit, and, to the fullest extent permitted by applicable law, shall not be subject to any defense or be affected by a right of set-off, counterclaim or recoupment which the Borrower or any of its Subsidiaries may now or hereafter have against any such beneficiary, the Issuing Bank, the Administrative Agent, the Lenders or any other Person for any reason whatsoever. Such deposit shall be held as collateral securing the payment and performance of the Borrower’s and the Guarantor’s obligations under this Agreement and the other Loan Documents. The Administrative Agent shall have exclusive dominion and control, including the exclusive right of withdrawal, over such account. Other than any interest earned on the investment of such deposits, which investments shall be made at the written request and instruction of the Borrower but at the option and sole discretion of the Administrative Agent and at the Borrower’s risk and expense, such deposits shall not bear interest. Interest or profits, if any, on such investments shall accumulate in such account. Moneys in such account shall be applied by the Administrative Agent to reimburse the Issuing Bank for LC Disbursements for which it has not been reimbursed and, to the extent not so applied, shall be held for the satisfaction of the reimbursement obligations of the Borrower for the LC Exposure at such time or, if the maturity of the Loans has been accelerated, be applied to satisfy other obligations of the Borrower and the Guarantors under this Agreement or the other Loan Documents. If the Borrower is required to provide an amount of cash collateral pursuant to paragraphs (i), (iii) or (iv) above, and the Borrower is not otherwise required to pay to the Administrative Agent the excess attributable to an LC Exposure in connection with any prepayment pursuant to Section

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3.04(c), then such amount (to the extent not applied as aforesaid) shall be returned to the Borrower within three Business Days after (x) in the case of cash collateral provided pursuant to paragraph (i) above, all Events of Default have been cured or waived and (y) in the case of cash collateral provided pursuant to paragraphs (iii) or (iv) above, the applicable Impacted Lender is no longer an Impacted Lender. The Borrower may at any time request confirmation from the Administrative Agent that an Impacted Lender is no longer an Impacted Lender, and the Administrative Agent shall promptly confirm such request or provide written confirmation to the Borrower that such Lender remains an Impacted Lender and the basis for such determination.

(l) Existing Letters of Credit. Anything to the contrary notwithstanding, Letter of Credit # SM234314W outstanding on the Effective Date shall continue to be a Letter of Credit hereunder until March 24, 2010 whether or not Wachovia continues to be a Lender hereunder and Wachovia shall have all of the rights, remedies, powers and privileges of an Issuing Bank hereunder (including, without limitation, the right to be reimbursed for any drawing hereunder) with respect to such existing Letter of Credit until such time as such Letter of Credit expires, is drawn and fully reimbursed or is renewed by another Letter of Credit issued hereunder, or any combination thereof.

Section 2.09 Swingline Loans.

(a) Subject to the terms and conditions set forth herein, the Swingline Lender agrees to make Swingline Loans to the Borrower from time to time during the Availability Period in an aggregate principal amount at any time outstanding that will not result in (i) the aggregate principal amount of outstanding Swingline Loans exceeding $25,000,000 or (ii) the Aggregate Revolving Credit Exposures exceeding the lesser of (i) the Borrowing Base then in effect or (ii) the Aggregate Commitments then in effect. Within the foregoing limits and subject to the terms and conditions set forth herein, the Borrowers may borrow, prepay and reborrow Swingline Loans.

(b) To request a Swingline Loan, the Borrower shall notify the Administrative Agent of such request by telephone not later than 2:00 p.m., Charlotte, North Carolina time, on the date of the proposed Borrowing. Each such telephonic Borrowing Request shall be irrevocable and shall be confirmed promptly by hand delivery, telecopy or transmitted by electronic communication to the Swingline Lender of a written Borrowing Request in a form approved by the Administrative Agent and signed by the Borrower. Each such telephonic and written Borrowing Request shall specify the date of such Borrowing, which shall be a Business Day in the United States, and aggregate amount of the requested Borrowing. The Administrative Agent will promptly advise the Swingline Lender of any such notice received from the Borrower. The Swingline Lender shall make each Swingline Loan available to the Borrower by means of a credit to the general deposit account of the Borrower with the Swingline Lender (or, in the case of a Swingline Loan made to finance the reimbursement of an LC Disbursement as provided in Section 2.08(f), by remittance to the Issuing Bank) by 4:00 p.m., Charlotte, North Carolina time, on the date such Borrowing is requested.

(c) The Swingline Lender may by written notice given to the Administrative Agent not later than 10:00 a.m., Charlotte, North Carolina time, on any Business Day require the Lenders to acquire participations on such Business Day in all or a portion of the Swingline Loans

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outstanding. Such notice shall specify the aggregate amount of Swingline Loans in which Lenders will participate. Promptly upon receipt of such notice, the Administrative Agent will give notice thereof to each Lender, specifying in such notice such Lender's Applicable Percentage of such Swingline Loan or Swingline Loans. Each Lender hereby absolutely and unconditionally agrees, upon receipt of notice as provided above, to pay to the Administrative Agent, for the account of the Swingline Lender, such Lender's Applicable Percentage of such Swingline Loan or Loans. Each Lender acknowledges and agrees that its obligation to acquire participations in Swingline Loans pursuant to this paragraph is absolute and unconditional and shall not be affected by any circumstance whatsoever, including the occurrence and continuance of a Default or Event of Default or reduction or termination of the Commitments, and that each such payment shall be made without any offset, abatement, withholding or reduction whatsoever. Each Lender shall comply with its obligation under this paragraph by wire transfer of immediately available funds, in the same manner as provided in Section 2.05 with respect to Loans made by such Lender (and Section 2.05 shall apply, mutatis mutandis, to the payment obligations of the Lenders), and the Administrative Agent shall promptly pay to the Swingline Lender the amounts so received by it from the Lenders. The Administrative Agent shall notify the Borrower of any participations in any Swingline Loan acquired pursuant to this paragraph, and thereafter payments in respect of such Swingline Loan shall be made to the Administrative Agent and not to the Swingline Lender. Any amounts received by the Swingline Lender from the Borrower (or other party on behalf of the Borrower) in respect of a Swingline Loan after receipt by the Swingline Lender of the proceeds of a sale of participations therein shall be promptly remitted to the Administrative Agent; any such amounts received by the Administrative Agent shall be promptly remitted by the Administrative Agent to the Lenders that shall have made their payments pursuant to this paragraph and to the Swingline Lender, as their interests may appear; provided that any such payment so remitted shall be repaid to the Swingline Lender or to the Administrative Agent, as applicable, if and to the extent such payment is required to be refunded to the Borrower for any reason. The purchase of participations in a Swingline Loan pursuant to this paragraph shall not relieve the Borrower of any default in the payment thereof.

ARTICLE III

Payments of Principal and Interest; Prepayments; Fees

Section 3.01 Repayment of Loans. The Borrower hereby unconditionally promises to pay to the (a) Administrative Agent for the account of each Lender the then unpaid principal amount of each Loan on the Termination Date and (b) Swingline Lender the then unpaid principal amount of each Swingline Loan on the earlier of (i) the Termination Date and (ii) seven (7) Business Days after such Swingline Loan is made; provided that on each date that a Loan is made, the Borrower shall repay all Swingline Loans then outstanding.

Section 3.02 Interest.

(a) ABR Loans. The Loans comprising each ABR Borrowing shall bear interest on the unpaid principal amount of such Loans at the Alternate Base Rate plus the Applicable Margin, but in no event to exceed the Highest Lawful Rate.

(b) Eurodollar Loans. The Loans comprising each Eurodollar Borrowing shall bear interest on the unpaid principal amount of such Loans at the Adjusted LIBO Rate for

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the Interest Period in effect for such Borrowing plus the Applicable Margin, but in no event to exceed the Highest Lawful Rate.

(c) Swingline Loans. Each Swingline Loan shall bear interest on the unpaid principal amount of such Swingline Loan at the Alternate Base Rate plus the Applicable Margin, but in no event to exceed the Highest Lawful Rate.

(d) Post-Default Rate. Notwithstanding the foregoing, if any principal of or interest on any Loan or any fee or other amount payable by the Borrower or any Guarantor hereunder or under any other Loan Document is not paid when due, whether at stated maturity, upon acceleration or otherwise, such overdue amount shall bear interest, after as well as before judgment, at a rate per annum equal to two percent (2%) plus the rate applicable to ABR Loans as provided in Section 3.02(a), but in no event to exceed the Highest Lawful Rate.

(e) Interest Payment Dates. Accrued interest on each Loan shall be payable in arrears on each Interest Payment Date for such Loan and on the Termination Date; provided that (i) accrued interest on any Swingline Loan shall be payable on the earlier of (a) the Termination Date and (b) seven (7) Business Days after such Swingline Loan is made, (ii) interest accrued pursuant to Section 3.02(d) shall be payable on demand, (iii) in the event of any repayment or prepayment of any Loan (other than an optional prepayment of an ABR Loan prior to the Termination Date), accrued interest on the principal amount repaid or prepaid shall be payable on the date of such repayment or prepayment, and (iv) in the event of any conversion of any Eurodollar Loan prior to the end of the current Interest Period therefor, accrued interest on such Loan shall be payable on the effective date of such conversion.

(f) Interest Rate Computations. All interest hereunder shall be computed on the basis of a year of 360 days, unless such computation would exceed the Highest Lawful Rate, in which case interest shall be computed on the basis of a year of 365 days (or 366 days in a leap year), except that interest computed by reference to the Alternate Base Rate at times when the Alternate Base Rate is based on the Prime Rate shall be computed on the basis of a year of 365 days (or 366 days in a leap year), and in each case shall be payable for the actual number of days elapsed (including the first day but excluding the last day). The applicable Alternate Base Rate, Adjusted LIBO Rate or LIBO Rate shall be determined by the Administrative Agent, and such determination shall be conclusive absent manifest error, and be binding upon the parties hereto.

Section 3.03 Alternate Rate of Interest If prior to the commencement of any Interest Period for a Eurodollar Borrowing:

(a) the Administrative Agent determines (which determination shall be conclusive absent manifest error) that adequate and reasonable means do not exist for ascertaining the Adjusted LIBO Rate or the LIBO Rate for such Interest Period; or

(b) the Administrative Agent is advised by the Majority Lenders that the Adjusted LIBO Rate or LIBO Rate, as applicable, for such Interest Period will not adequately and fairly reflect the cost to such Lenders of making or maintaining their Loans included in such Borrowing for such Interest Period; then the Administrative Agent shall give notice thereof to the Borrower and the Lenders by telephone or telecopy as promptly as practicable thereafter and,

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until the Administrative Agent notifies the Borrower and the Lenders that the circumstances giving rise to such notice no longer exist, (i) any Interest Election Request that requests the conversion of any Borrowing to, or continuation of any Borrowing as, a Eurodollar Borrowing shall be ineffective, and (ii) if any Borrowing Request requests a Eurodollar Borrowing, such Borrowing shall be made as an ABR Borrowing.

Section 3.04 Prepayments.

(a) Optional Prepayments. The Borrower shall have the right at any time and from time to time to prepay any Borrowing in whole or in part, subject to prior notice in accordance with Section 3.04(b).

(b) Notice and Terms of Optional Prepayment. The Borrower shall notify the Administrative Agent by telephone (confirmed by telecopy) of any prepayment hereunder (i) in the case of prepayment of a Eurodollar Borrowing, not later than 1:00 p.m. Charlotte, North Carolina time, three Business Days before the date of prepayment, or (ii) in the case of prepayment of an ABR Borrowing, not later than 11:00 a.m. Charlotte, North Carolina time, on the date of prepayment, which date shall be a Business Day in the United States. Each such notice shall be irrevocable and shall specify the prepayment date and the principal amount of each Borrowing or portion thereof to be prepaid. Promptly following receipt of any such notice relating to a Borrowing, the Administrative Agent shall advise the Lenders of the contents thereof. Each partial prepayment of any Borrowing shall be in an amount that would be permitted in the case of an advance of a Borrowing of the same Type as provided in Section 2.02. Each prepayment of a Borrowing shall be applied ratably to the Loans included in the prepaid Borrowing. Prepayments shall be accompanied by accrued interest to the extent required by Section 3.02.

(i) If, after giving effect to any termination or reduction of the Aggregate Commitment pursuant to Section 2.06(b), the Aggregate Revolving Credit Exposures exceed the Aggregate Commitments, then the Borrower shall (A) prepay the Borrowings in an aggregate principal amount equal to such excess, or add to the Mortgaged Property, Oil and Gas Properties, having value, as determined by the Administrative Agent and the Majority Lenders, equal to or greater than such excess, or a combination thereof and (B) if any excess remains after prepaying all of the Borrowings as a result of an LC Exposure, pay to the Administrative Agent on behalf of the Lenders an amount equal to such excess to be held as cash collateral as provided in Section 2.08(k). The Borrower will be obligated to make such prepayment, provide such collateral and/or deposit of cash collateral within ninety (90) days following such termination or reduction of the Aggregate Commitment; provided that all payments required to be made pursuant to this Section 3.04(c)(i) must be made on or prior to the Termination Date.

(ii) Upon any redetermination of or adjustment to the amount of the Borrowing Base in accordance with Section 2.07 or Section 8.13(c), if the Aggregate Revolving Credit Exposures exceed the redetermined or adjusted Borrowing Base, then the Borrower shall either (A)(1) prepay the Borrowings in an aggregate principal amount equal to such excess, or add to the Mortgaged Property, Oil and Gas Properties, having value, as determined by the

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Administrative Agent and the Majority Lenders, equal to or greater than such excess, or a combination thereof and (2) if any excess remains after prepaying all of the Borrowings as a result of an LC Exposure, pay to the Administrative Agent on behalf of the Lenders an amount equal to such excess to be held as cash collateral as provided in Section 2.08(k) or (B) prepay, subject to the payment of any funding indemnification amounts required by Section 5.02 but without premium or penalty, the principal amount of such excess in not more than six (6) equal monthly installments plus accrued interest thereon with the first such monthly payment being due within thirty (30) days following its receipt of the New Borrowing Base Notice in accordance with Section 2.07(d) or the date the adjustment occurs. The Borrower shall be obligated to make any prepayment pursuant to Section 3.04(c)(ii)(A)(1) and/or provide any collateral pursuant to Section 3.04(c)(ii)(A)(1) and/or deposit cash collateral pursuant to Section 3.04(c)(ii)(A)(2) within ninety (90) days following its receipt of the New Borrowing Base Notice in accordance with Section 2.07(d) or the date the adjustment occurs. The Borrower shall be obligated to make all payments required to be made pursuant to Section 3.04(c)(ii)(B) on or prior to the Termination Date. Notwithstanding any of the foregoing, all payments, additions of mortgages on Oil and Gas Properties and cash collateral deposits required to be made pursuant to this Section 3.04(c)(ii) must be made on or prior to the Termination Date.

(iii) Upon any adjustments to the Borrowing Base pursuant to Section 9.11(a), Section 9.12 or Section 9.20, if the Aggregate Revolving Credit Exposures exceed the Borrowing Base as adjusted, then the Borrower shall (A) prepay the Borrowings in an aggregate principal amount equal to such excess, or add to the Mortgaged Property, Oil and Gas Properties, having value, as determined by the Administrative Agent and the Majority Lenders, equal to or greater than such excess, or a combination thereof and (B) if any excess remains after prepaying all of the Borrowings as a result of an LC Exposure, pay to the Administrative Agent on behalf of the Lenders an amount equal to such excess to be held as cash collateral as provided in Section 2.08(k). The Borrower shall be obligated to make such prepayment, provide such collateral and/or deposit of cash collateral within ninety (90) days following such adjustment to the Borrowing Base (or, if sooner, on the date the Borrower receives cash proceeds as a result of a disposition pursuant to Section 9.12); provided that all payments required to be made pursuant to this Section 3.04(c)(iii) must be made on or prior to the Termination Date.

(iv) Each prepayment of Borrowings pursuant to this Section 3.04(c) shall be applied, first, ratably to any ABR Borrowings then outstanding, and, second, to any Eurodollar Borrowings then outstanding, and if more than one Eurodollar Borrowing is then outstanding, to each such Eurodollar Borrowing in order of priority beginning with the Eurodollar Borrowing with the least number of days remaining in the Interest Period applicable thereto and ending with the Eurodollar Borrowing with the most number of days remaining in the Interest Period applicable thereto.

(v) Each prepayment of Borrowings pursuant to this Section 3.04(c) shall be applied ratably to the Loans included in the prepaid Borrowings. Prepayments pursuant to this Section 3.04(c) shall be accompanied by accrued interest to the extent required by Section 3.02.

(d) No Premium or Penalty. Prepayments permitted or required under this Section 3.04 shall be without premium or penalty, except as required under Section 5.02.

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Section 3.05 Fees.

(a) Commitment Fees. The Borrower agrees to pay to the Administrative Agent for the account of each Lender a commitment fee, which shall accrue at the applicable Commitment Fee Rate on the daily unused amount of the Commitment of such Lender during the period from and including the date of this Agreement to but excluding the Termination Date. Accrued commitment fees shall be payable in arrears on the last day of March, June, September and December of each year and on the Termination Date, commencing on the first such date to occur after the date hereof. All commitment fees shall be computed on the basis of a year of 360 days, unless such computation would exceed the Highest Lawful Rate, in which case interest shall be computed on the basis of a year of 365 days (or 366 days in a leap year), and shall be payable for the actual number of days elapsed (including the first day but excluding the last day). If a Lender is an Impacted Lender, commitment fees shall cease to accrue pursuant to this Section 3.05(a) on the entire Commitment of such Lender until such Lender is no longer an Impacted Lender.

(b) Letter of Credit Fees. The Borrower agrees to pay (i) to the Administrative Agent for the account of each Lender a participation fee with respect to its participations in Letters of Credit, which shall accrue at the same Applicable Margin used to determine the interest rate applicable to Eurodollar Loans on the average daily amount of such Lender’s LC Exposure (excluding any portion thereof attributable to unreimbursed LC Disbursements) during the period from and including the date of this Agreement to but excluding the later of the date on which such Lender’s Commitment terminates and the date on which such Lender ceases to have any LC Exposure, (ii) to the Issuing Bank a fronting fee, which shall accrue at the rate of 0.125% per annum on the average daily amount of the LC Exposure (excluding any portion thereof attributable to unreimbursed LC Disbursements) during the period from and including the date of this Agreement to but excluding the later of the date of termination of the Commitments and the date on which there ceases to be any LC Exposure, provided that in no event shall such fee be less than $300 during any quarter, and (iii) to the Issuing Bank, for its own account, its standard fees with respect to the issuance, amendment, renewal or extension of any Letter of Credit or processing of drawings thereunder. Participation fees and fronting fees accrued through and including the last day of March, June, September and December of each year shall be payable on the third Business Day following such last day, commencing on the first such date to occur after the date of this Agreement; provided that all such fees shall be payable on the Termination Date and any such fees accruing after the Termination Date shall be payable on demand. Any other fees payable to the Issuing Bank pursuant to this Section 3.05(b) shall be payable within 10 days after demand. All participation fees and fronting fees shall be computed on the basis of a year of 360 days, unless such computation would exceed the Highest Lawful Rate, in which case interest shall be computed on the basis of a year of 365 days (or 366 days in a leap year), and shall be payable for the actual number of days elapsed (including the first day but excluding the last day).

(c) Administrative Agent Fees. The Borrower agrees to pay to the Administrative Agent, for its own account, fees payable in the amounts and at the times separately agreed upon between the Borrower and the Administrative Agent.

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ARTICLE IV

Payments; Pro Rata Treatment; Sharing of Set-offs.

Section 4.01 Payments Generally; Pro Rata Treatment; Sharing of Set-offs.

(a) Payments by the Borrower. The Borrower shall make each payment required to be made by it hereunder (whether of principal, interest, fees or reimbursement of LC Disbursements, or of amounts payable under Section 5.01, Section 5.02, Section 5.03 or otherwise) prior to 2:00 p.m. Charlotte, North Carolina time, on the date when due, in immediately available funds, without defense, deduction, recoupment, set-off or counterclaim. Fees, once paid, shall not be refundable under any circumstances. Any amounts received after such time on any date may, in the discretion of the Administrative Agent, be deemed to have been received on the next succeeding Business Day for purposes of calculating interest thereon. All such payments shall be made to the Administrative Agent at its offices specified in Section 12.01, except payments to be made directly to the Issuing Bank as expressly provided herein and except that payments pursuant to Section 2.09, Section 5.01, Section 5.02, Section 5.03 and Section 12.03 shall be made directly to the Persons entitled thereto. The Administrative Agent shall distribute any such payments received by it for the account of any other Person to the appropriate recipient promptly following receipt thereof. If any payment hereunder shall be due on a day that is not a Business Day, the date for payment shall be extended to the next succeeding Business Day, and, in the case of any payment accruing interest, interest thereon shall be payable for the period of such extension. All payments hereunder shall be made in dollars.

(b) Application of Insufficient Payments. If at any time insufficient funds are received by and available to the Administrative Agent to pay fully all amounts of principal, unreimbursed LC Disbursements, interest and fees then due hereunder, such funds shall be applied (i) first, towards payment of interest and fees then due hereunder, ratably among the parties entitled thereto in accordance with the amounts of interest and fees then due to such parties, and (ii) second, towards payment of principal and unreimbursed LC Disbursements then due hereunder, ratably among the parties entitled thereto in accordance with the amounts of principal and unreimbursed LC Disbursements then due to such parties.

(c) Sharing of Payments by Lenders. If any Lender shall, by exercising any right of set-off or counterclaim or otherwise, obtain payment in respect of any principal of or interest on any of its Loans or participations in LC Disbursements resulting in such Lender receiving payment of a greater proportion of the aggregate amount of its Loans and participations in LC Disbursements and accrued interest thereon than the proportion received by any other Lender (other than, in the case of Swingline Loans, the Swingline Lender), then the Lender receiving such greater proportion shall purchase (for cash at face value) participations in the Loans and participations in LC Disbursements of other Lenders to the extent necessary so that the benefit of all such payments shall be shared by the Lenders ratably in accordance with the aggregate amount of principal of and accrued interest on their respective Loans and participations in LC Disbursements; provided that (i) if any such participations are purchased and all or any portion of the payment giving rise thereto is recovered, such participations shall be rescinded and the purchase price restored to the extent of such recovery, without interest, and (ii) the provisions of this Section 4.01(c) shall not be construed to apply to any payment made by the

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Borrower to a particular Lender pursuant to and in accordance with the express terms of this Agreement or any payment obtained by a Lender as consideration for the assignment of or sale of a participation in any of its Loans or participations in LC Disbursements to any assignee or participant. The Borrower consents to the foregoing and agrees, to the extent it may effectively do so under applicable law, that any Lender acquiring a participation pursuant to the foregoing arrangements may exercise against the Borrower rights of set-off and counterclaim with respect to such participation as fully as if such Lender were a direct creditor of the Borrower in the amount of such participation.

Section 4.02 Presumption of Payment by the Borrower. Unless the Administrative Agent shall have received notice from the Borrower prior to the date on which any payment is due to the Administrative Agent for the account of the Lenders or the Issuing Bank that the Borrower will not make such payment, the Administrative Agent may assume that the Borrower has made such payment on such date in accordance herewith and may, in reliance upon such assumption, distribute to the Lenders or the Issuing Bank, as the case may be, the amount due. In such event, if the Borrower has not in fact made such payment, then each of the Lenders or the Issuing Bank, as the case may be, severally agrees to repay to the Administrative Agent forthwith on demand the amount so distributed to such Lender or Issuing Bank with interest thereon, for each day from and including the date such amount is distributed to it to but excluding the date of payment to the Administrative Agent, at the greater of the Federal Funds Effective Rate and a rate determined by the Administrative Agent in accordance with banking industry rules on interbank compensation.

Section 4.03 Certain Deductions by the Administrative Agent. If any Lender shall fail to make any payment required to be made by it pursuant to Section 2.05(b), Section 2.08(e), Section 2.08(f) or Section 4.02 then the Administrative Agent may, in its discretion (notwithstanding any contrary provision hereof), apply any amounts thereafter received by the Administrative Agent for the account of such Lender to satisfy such Lender’s obligations under such Sections until all such unsatisfied obligations are fully paid. If at any time prior to the acceleration or maturity of the Loans, the Administrative Agent shall receive any payment in respect of principal of a Loan or a reimbursement of an LC Disbursement while one or more Impacted Lenders shall be party to this Agreement, the Administrative Agent shall apply such payment first to the Borrowing(s) for which such Impacted Lender(s) shall have failed to fund its pro rata share until such time as such Borrowing(s) are paid in full or each Lender (including each Impacted Lender) is owed its Applicable Percentage of all Loans then outstanding. After acceleration or maturity of the Loans, all principal will be paid ratably as provided in Section 10.02(c).

Section 4.04 Disposition of Proceeds. The Security Instruments contain an assignment by the Borrower and/or the Material Subsidiaries unto and in favor of the Administrative Agent for the benefit of the Lenders of all of the Borrower’s or each Material Subsidiary’s interest in and to production and all proceeds attributable thereto which may be produced from or allocated to the Mortgaged Property. The Security Instruments further provide in general for the application of such proceeds to the satisfaction of the Indebtedness and other obligations described therein and secured thereby. Notwithstanding the assignment contained in such Security Instruments, until the occurrence of an Event of Default, (a) the Administrative Agent and the Lenders agree that they will neither notify the purchaser or purchasers of such production

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nor take any other action to cause such proceeds to be remitted to the Administrative Agent or the Lenders, but the Lenders will instead permit such proceeds to be paid to the Borrower and its Material Subsidiaries and (b) the Lenders hereby authorize the Administrative Agent to take such actions as may be necessary to cause such proceeds to be paid to the Borrower and/or such Material Subsidiaries.

ARTICLE V

Increased Costs; Break Funding Payments; Taxes; Illegality

Section 5.01 Increased Costs.

(a) Eurodollar Changes in Law. If any Change in Law shall:

(i) impose, modify or deem applicable any reserve, special deposit or similar requirement against assets of, deposits with or for the account of, or credit extended by, any Lender (except any such reserve requirement reflected in the Adjusted LIBO Rate); or

(ii) impose on any Lender or the London interbank market any other condition affecting this Agreement or Eurodollar Loans made by such Lender;

and the result of any of the foregoing shall be to increase the cost to such Lender of making or maintaining any Eurodollar Loan (or of maintaining its obligation to make any such Loan) or to reduce the amount of any sum received or receivable by such Lender (whether of principal, interest or otherwise), then the Borrower will pay to such Lender such additional amount or amounts as will compensate such Lender for such additional costs incurred or reduction suffered.

(b) Capital Requirements. If any Lender or the Issuing Bank determines that any Change in Law regarding capital requirements has or would have the effect of reducing the rate of return on such Lender’s or the Issuing Bank’s capital or on the capital of such Lender’s or the Issuing Bank’s holding company, if any, as a consequence of this Agreement or the Loans made by, or participations in Letters of Credit held by, such Lender, or the Letters of Credit issued by the Issuing Bank, to a level below that which such Lender or the Issuing Bank or such Lender’s or the Issuing Bank’s holding company could have achieved but for such Change in Law (taking into consideration such Lender’s or the Issuing Bank’s policies and the policies of such Lender’s or the Issuing Bank’s holding company with respect to capital adequacy), then from time to time the Borrower will pay to such Lender or the Issuing Bank, as the case may be, such additional amount or amounts as will compensate such Lender or the Issuing Bank or such Lender’s or the Issuing Bank’s holding company for any such reduction suffered.

(c) Certificates. A certificate of a Lender or the Issuing Bank setting forth the amount or amounts necessary to compensate such Lender or the Issuing Bank or its holding company, as the case may be, as specified in Section 5.01(a) or (b) shall be delivered to the Borrower and shall be conclusive absent manifest error. The Borrower shall pay such Lender or the Issuing Bank, as the case may be, the amount shown as due on any such certificate within 10 days after receipt thereof.

(d) Effect of Failure or Delay in Requesting Compensation. Failure or delay on the part of any Lender or the Issuing Bank to demand compensation pursuant to this Section

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5.01 shall not constitute a waiver of such Lender’s or the Issuing Bank’s right to demand such compensation.

Section 5.02 Break Funding Payments. In the event of (a) the payment of any principal of any Eurodollar Loan other than on the last day of an Interest Period applicable thereto (including as a result of an Event of Default), (b) the conversion of any Eurodollar Loan into an ABR Loan other than on the last day of the Interest Period applicable thereto, or (c) the failure to borrow, convert, continue or prepay any Eurodollar Loan on the date specified in any notice delivered pursuant hereto, then, in any such event, the Borrower shall compensate each Lender for the loss, cost and expense attributable to such event. In the case of a Eurodollar Loan, such loss, cost or expense to any Lender shall be deemed to include an amount determined by such Lender to be the excess, if any, of (i) the amount of interest which would have accrued on the principal amount of such Loan had such event not occurred, at the Adjusted LIBO Rate that would have been applicable to such Loan, for the period from the date of such event to the last day of the then current Interest Period therefor (or, in the case of a failure to borrow, convert or continue, for the period that would have been the Interest Period for such Loan), over (ii) the amount of interest which would accrue on such principal amount for such period at the interest rate which such Lender would bid were it to bid, at the commencement of such period, for dollar deposits of a comparable amount and period from other banks in the eurodollar market.

A certificate of any Lender setting forth any amount or amounts that such Lender is entitled to receive pursuant to this Section 5.02 shall be delivered to the Borrower and shall be conclusive absent manifest error. The Borrower shall pay such Lender the amount shown as due on any such certificate within 10 days after receipt thereof.

Section 5.03 Taxes.

(a) Payments Free of Taxes. Any and all payments by or on account of any obligation of the Borrower or any Material Subsidiary under any Loan Document shall be made free and clear of and without deduction for any Indemnified Taxes or Other Taxes; provided that if the Borrower shall be required to deduct any Indemnified Taxes or Other Taxes from such payments, then (i) the sum payable shall be increased as necessary so that after making all required deductions (including deductions applicable to additional sums payable under this Section 5.03(a)), the Administrative Agent, Lender or Issuing Bank (as the case may be) receives an amount equal to the sum it would have received had no such deductions been made, (ii) the Borrower shall make such deductions and (iii) the Borrower shall pay the full amount deducted to the relevant Governmental Authority in accordance with applicable law.

(b) Payment of Other Taxes by the Borrower. The Borrower shall pay any Other Taxes to the relevant Governmental Authority in accordance with applicable law.

(c) Indemnification by the Borrower. The Borrower shall indemnify the Administrative Agent, each Lender and the Issuing Bank, within 10 days after written demand therefor, for the full amount of any Indemnified Taxes or Other Taxes paid by the Administrative Agent, such Lender or the Issuing Bank, as the case may be, on or with respect to any payment by or on account of any obligation of the Borrower hereunder (including Indemnified Taxes or Other Taxes imposed or asserted on or attributable to amounts payable under this Section 5.03)

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and any penalties, interest and reasonable expenses arising therefrom or with respect thereto, whether or not such Indemnified Taxes or Other Taxes were correctly or legally imposed or asserted by the relevant Governmental Authority. A certificate of the Administrative Agent, a Lender or the Issuing Bank as to the amount of such payment or liability under this Section 5.03 shall be delivered to the Borrower and shall be conclusive absent manifest error.

(d) Evidence of Payments. As soon as practicable after any payment of Indemnified Taxes or Other Taxes by the Borrower to a Governmental Authority, the Borrower shall deliver to the Administrative Agent the original or a certified copy of a receipt issued by such Governmental Authority evidencing such payment, a copy of the return reporting such payment or other evidence of such payment reasonably satisfactory to the Administrative Agent.

(e) Foreign Lenders. Any Foreign Lender that is entitled to an exemption from or reduction of withholding tax under the law of the jurisdiction in which the Borrower is located, or any treaty to which such jurisdiction is a party, with respect to payments under this Agreement or any other Loan Document shall deliver to the Borrower (with a copy to the Administrative Agent), at the time or times prescribed by applicable law, such properly completed and executed documentation prescribed by applicable law or reasonably requested by the Borrower as will permit such payments to be made without withholding or at a reduced rate.

(f) Tax Refunds. If the Administrative Agent or a Lender determines, in its reasonable discretion, that it has received a refund of any Taxes or Other Taxes as to which it has been indemnified by the Borrower or with respect to which the Borrower has paid additional amounts pursuant to this Section 5.03, it shall pay over such refund to the Borrower (but only to the extent of indemnity payments made, or additional amounts paid, by the Borrower under this Section 5.03 with respect to the Taxes or Other Taxes giving rise to such refund), net of all out-of-pocket expenses of the Administrative Agent or such Lender and without interest (other than any interest paid by the relevant Governmental Authority with respect to such refund); provided, that the Borrower, upon the request of the Administrative Agent or such Lender, agrees to repay the amount paid over to the Borrower (plus any penalties, interest or other charges imposed by the relevant Governmental Authority) to the Administrative Agent or such Lender in the event the Administrative Agent or such Lender is required to repay such refund to such Governmental Authority. This Section 5.03 shall not be construed to require the Administrative Agent or any Lender to make available its tax returns (or any other information relating to its taxes which it deems confidential) to the Borrower or any other Person.

Section 5.04 Designation of Different Lending Office. If any Lender requests compensation under Section 5.01, or if the Borrower is required to pay any additional amount to any Lender or any Governmental Authority for the account of any Lender pursuant to Section 5.03, then such Lender shall use reasonable efforts to designate a different lending office for funding or booking its Loans hereunder or to assign its rights and obligations hereunder to another of its offices, branches or affiliates, if, in the judgment of such Lender, such designation or assignment (i) would eliminate or reduce amounts payable pursuant to Section 5.01 or Section 5.03, as the case may be, in the future and (ii) would not subject such Lender to any unreimbursed cost or expense and would not otherwise be disadvantageous to such Lender. The Borrower hereby agrees to pay all reasonable costs and expenses incurred by any Lender in connection with any such designation or assignment.

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Section 5.05 Illegality. Notwithstanding any other provision of this Agreement, in the event that it becomes unlawful for any Lender or its applicable lending office to honor its obligation to make or maintain Eurodollar Loans either generally or having a particular Interest Period hereunder, then (a) such Lender shall promptly notify the Borrower and the Administrative Agent thereof and such Lender’s obligation to make such Eurodollar Loans shall be suspended (the “Affected Loans”) until such time as such Lender may again make and maintain such Eurodollar Loans and (b) all Affected Loans which would otherwise be made by such Lender shall be made instead as ABR Loans (and, if such Lender so requests by notice to the Borrower and the Administrative Agent, all Affected Loans of such Lender then outstanding shall be automatically converted into ABR Loans on the date specified by such Lender in such notice) and, to the extent that Affected Loans are so made as (or converted into) ABR Loans, all payments of principal which would otherwise be applied to such Lender’s Affected Loans shall be applied instead to its ABR Loans. Subject to Section 5.06, no Commitment of any Lender shall be increased or otherwise affected solely as a result of the operation of this Section 5.05 and, except as otherwise expressly provided in this Section 5.05, performance by the Borrower of its obligations hereunder and the other Loan Documents shall not be excused or otherwise modified solely as a result of the operation of this Section 5.05.

Section 5.06 Replacement of Lenders.

(a) If any Lender requests compensation under Section 5.01, or if the Borrower is required to pay any additional amount to any Lender or any Governmental Authority for the account of any Lender pursuant to Section 5.03, or if any Lender has Affected Loans pursuant to Section 5.05, or if any Lender becomes an Impacted Lender, or if any Lender refuses to approve a Proposed Borrowing Base pursuant to Section 2.07(c)(iii) and as a result, the Borrower elects to replace such dissenting Lender pursuant to Section 2.07(c)(iv), then the Borrower may, at its sole expense and effort, upon notice to such Lender and the Administrative Agent, require such Lender to assign and delegate, without recourse (in accordance with and subject to the restrictions contained in Section 12.04(b)), all its interests, rights and obligations under this Agreement to an assignee that shall assume such obligations (which assignee may be another Lender, if a Lender accepts such assignment); provided that (i) the Borrower shall have received the prior written consent of the Administrative Agent, which consent shall not unreasonably be withheld, (ii) such Lender shall have received payment of an amount equal to the outstanding principal of its Loans and participations in LC Disbursements, accrued interest thereon, accrued fees and all other amounts payable to it hereunder, from the assignee (to the extent of such outstanding principal and accrued interest and fees) or the Borrower (in the case of all other amounts) and (iii) in the case of any such assignment resulting from a claim for compensation under Section 5.01 or payments required to be made pursuant to Section 5.03, such assignment will result in a reduction in such compensation or payments. A Lender shall not be required to make any such assignment and delegation if, prior thereto, as a result of a waiver by such Lender or otherwise, the circumstances entitling the Borrower to require such assignment and delegation cease to apply.

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ARTICLE VI

Conditions Precedent

Section 6.01 Effective Date. The obligations of the Lenders to make Loans and of the Issuing Bank to issue Letters of Credit hereunder shall not become effective until the date on which each of the following conditions is satisfied (or waived in accordance with Section 12.02):

(a) The Administrative Agent shall have received all fees and other amounts due and payable on or prior to the Effective Date, including, without limitation, to the extent invoiced, reimbursement or payment of all of the Administrative Agent’s out-of-pocket expenses including, without limitation, the reasonable fees, charges and disbursements of counsel for the Administrative Agent, required to be reimbursed or paid by the Borrower hereunder.

(b) The Administrative Agent shall have received a certificate of the Secretary or an Assistant Secretary of each of the Borrower and each Guarantor setting forth (i) resolutions of its board of directors with respect to the authorization of the Borrower or such Guarantor to execute and deliver the Loan Documents to which it is a party and to enter into the transactions contemplated in those documents, (ii) the officers of the Borrower or such Guarantor (y) who are authorized to sign the Loan Documents to which the Borrower or such Guarantor is a party and (z) who will, until replaced by another officer or officers duly authorized for that purpose, act as its representative for the purposes of signing documents and giving notices and other communications in connection with this Agreement and the transactions contemplated hereby, (iii) specimen signatures of such authorized officers, and (iv) that no changes to the articles or certificate of incorporation and bylaws of the Borrower and such Guarantor have occurred since December 18, 2008. The Administrative Agent and the Lenders may conclusively rely on such certificate until the Administrative Agent receives notice in writing from the Borrower to the contrary.

(c) The Administrative Agent shall have received certificates of the appropriate State agencies with respect to the existence, qualification and good standing of the Borrower and each Guarantor.

(d) The Administrative Agent shall have received a compliance certificate which shall be substantially in the form of Exhibit B, duly and properly executed by a Responsible Officer and dated as of the Effective Date certifying compliance (including compliance with Section 8.12) with the Existing Credit Agreement as of such date.

(e) The Administrative Agent shall have received from each party hereto counterparts (in such number as may be requested by the Administrative Agent) of this Agreement signed on behalf of such party.

(f) The Administrative Agent shall have received duly executed Notes payable to the order of each Lender in a principal amount equal to such Lender’s Commitment dated as of the date hereof.

(g) The Administrative Agent shall have received from each party thereto duly executed and completed counterparts (in such number as may be requested by the Administrative Agent) of the Security Instruments, including the Reaffirmation Agreements and

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the other Security Instruments described on Exhibit C. In connection with the execution and delivery of the Security Instruments, the Administrative Agent shall:

(i) be reasonably satisfied that the Security Instruments create first priority, perfected Liens (subject only to Excepted Liens identified in clauses (a) to (d) and (f) of the definition thereof, but subject to the provisos at the end of such definition) on at least 80% of the total value of the Oil and Gas Properties evaluated in the Initial Reserve Report sufficient in the reasonable opinion of the Administrative Agent to justify a Borrowing Base of $900,000,000 on the Effective Date hereof; and

(ii) have received certificates, together with undated, blank stock powers for each such certificate, representing all of the issued and outstanding Equity Interests of each of the Guarantors.

(h) The Administrative Agent shall have received an opinion of Ballard Spahr Andrews & Ingersoll, LLP, special counsel to the Borrower and the Guarantors, substantially in the form of Exhibit H hereto, and such other legal opinions, including opinions of local counsel, certificates, notes, documents and other instruments as the Administrative Agent may request.

(i) The Administrative Agent shall have received a certificate of insurance coverage of the Borrower evidencing that the Borrower is carrying insurance in accordance with Section 7.13.

(j) The Administrative Agent shall have received title opinions, in form and substance satisfactory to the Administrative Agent, or other evidence of title, in form and substance satisfactory to the Administrative Agent, setting forth the status of title to at least 80% of the total value of the Mortgaged Properties evaluated in the Initial Reserve Report and the Administrative Agent shall be reasonably satisfied with the status of title reflected therein.

(k) The proceeds of the initial Loans shall be used to renew, rearrange, modify and extend the outstanding amounts under the Existing Credit Agreement and all “Commitments” (as defined in the Existing Credit Agreement) thereunder shall have been terminated.

(l) The Administrative Agent shall be reasonably satisfied with the environmental condition of the Oil and Gas Properties of the Borrower and its Material Subsidiaries.

(m) The Administrative Agent shall have received a certificate of a Responsible Officer of the Borrower certifying that the Borrower has received all consents and approvals required by Section 7.03.

(n) The Administrative Agent shall have received the financial statements referred to in Section 7.04(a) and the Initial Reserve Report accompanied by a certificate covering the matters described in Section 8.12(c).

(o) The Administrative Agent shall have received appropriate UCC search certificates reflecting no prior Liens encumbering the Properties of the Borrower and the

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Material Subsidiaries for each of the following jurisdictions: Colorado, Delaware, Louisiana, Montana, New Mexico, North Dakota, Oklahoma, Texas, and Wyoming and any other jurisdiction requested by the Administrative Agent; other than those being assigned or released on or prior to the Effective Date or Liens permitted by Section 9.03.

(p) The Administrative Agent shall have received a letter from Corporation Service Company evidencing the appointment of Corporation Service Company as authorized agent for service of process on the Borrower under each Loan Document to which it is a party,

(q) The Administrative Agent shall have received such other documents as the Administrative Agent or special counsel to the Administrative Agent may reasonably request.

The Administrative Agent shall notify the Borrower and the Lenders of the Effective Date, and such notice shall be conclusive and binding. Notwithstanding the foregoing, the obligations of the Lenders to make Loans and of the Issuing Bank to issue Letters of Credit hereunder shall not become effective unless each of the foregoing conditions is satisfied (or waived pursuant to Section 12.02) at or prior to 5:00 p.m., Charlotte, North Carolina time, on April 15, 2009 (and, in the event such conditions are not so satisfied or waived, the Commitments shall terminate at such time).

Section 6.02 Each Credit Event. The obligation of each Lender to make a Loan on the occasion of any Borrowing (including the initial funding), and of the Issuing Bank to issue, amend, renew or extend any Letter of Credit, is subject to the satisfaction of the following conditions:

(a) At the time of and immediately after giving effect to such Borrowing or the issuance, amendment, renewal or extension of such Letter of Credit, as applicable, no Default shall have occurred and be continuing.

(b) At the time of and immediately after giving effect to such Borrowing or the issuance, amendment, renewal or extension of such Letter of Credit, as applicable, no Material Adverse Effect shall have occurred.

(c) The representations and warranties of the Borrower and the Guarantors set forth in this Agreement and in the other Loan Documents shall be true and correct in all material respects on and as of the date of such Borrowing or the date of issuance, amendment, renewal or extension of such Letter of Credit, as applicable, except to the extent any such representations and warranties are expressly limited to an earlier date, in which case, on and as of the date of such Borrowing or the date of issuance, amendment, renewal or extension of such Letter of Credit, as applicable, such representations and warranties shall continue to be true and correct as of such specified earlier date.

(d) The making of such Loan or the issuance, amendment, renewal or extension of such Letter of Credit, as applicable, would not conflict with, or cause any Lender or the Issuing Bank to violate or exceed, any applicable Governmental Requirement, and no Change in Law shall have occurred, and no litigation shall be pending or threatened, which does or, with respect to any threatened litigation, seeks to, enjoin, prohibit or restrain, the making or repayment of any Loan, the issuance, amendment, renewal, extension or repayment of any Letter

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of Credit or any participations therein or the consummation of the transactions contemplated by this Agreement or any other Loan Document.

(e) The receipt by the Administrative Agent of a Borrowing Request in accordance with Section 2.03 or a request for a Letter of Credit in accordance with Section 2.08(b), as applicable.

Each Borrowing and each issuance, amendment, renewal or extension of any Letter of Credit shall be deemed to constitute a representation and warranty by the Borrower on the date thereof as to the matters specified in Section 6.02(a) through (e).

ARTICLE VII

Representations and Warranties

The Borrower represents and warrants to the Lenders that:

Section 7.01 Organization; Powers. Each of the Borrower and the Material Subsidiaries is duly organized, validly existing and in good standing under the laws of the jurisdiction of its organization, has all requisite power and authority, and has all material governmental licenses, authorizations, consents and approvals necessary, to own its assets and to carry on its business as now conducted, and is qualified to do business in, and is in good standing in, every jurisdiction where such qualification is required, except where failure to have such power, authority, licenses, authorizations, consents, approvals and qualifications could not reasonably be expected to have a Material Adverse Effect.

Section 7.02 Authority; Enforceability. The Transactions are within the Borrower’s and each Guarantor’s corporate powers and have been duly authorized by all necessary corporate and, if required, stockholder action. Each Loan Document to which the Borrower and each Guarantor is a party has been duly executed and delivered by the Borrower and such Guarantor and constitutes a legal, valid and binding obligation of the Borrower and such Guarantor, as applicable, enforceable in accordance with its terms, subject to applicable bankruptcy, insolvency, reorganization, moratorium or other laws affecting creditors’ rights generally and subject to general principles of equity, regardless of whether considered in a proceeding in equity or at law.

Section 7.03 Approvals; No Conflicts. The Transactions (a) do not require any consent or approval of, registration or filing with, or any other action by, any Governmental Authority or any other third Person, nor is any such consent, approval, registration, filing or other action necessary for the validity or enforceability of any Loan Document or the consummation of the transactions contemplated thereby, except such as have been obtained or made and are in full force and effect other than (i) the recording and filing of the Security Instruments as required by this Agreement and (ii) those third party approvals or consents which, if not made or obtained, would not cause a Default hereunder, could not reasonably be expected to have a Material Adverse Effect or do not have an adverse effect on the enforceability of the Loan Documents, (b) will not violate any applicable law or regulation or the charter, by-laws or other organizational documents of the Borrower or any Material Subsidiary or any order of any Governmental Authority, (c) will not violate or result in a default under any indenture, agreement or other

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instrument binding upon the Borrower or any Material Subsidiary or its Properties, or give rise to a right thereunder to require any payment to be made by the Borrower or such Material Subsidiary and (d) will not result in the creation or imposition of any Lien on any Property of the Borrower or any Material Subsidiary (other than the Liens created by the Loan Documents).

Section 7.04 Financial Condition; No Material Adverse Change.

(a) The Borrower has heretofore furnished to the Lenders its consolidated balance sheet and statements of income, stockholders equity and cash flows as of and for the fiscal year ended December 31, 2008, reported on by Deloitte & Touche, independent public accountants. Such financial statements present fairly, in all material respects, the financial position and results of operations and cash flows of the Borrower and its Consolidated Subsidiaries as of such date and for such period in accordance with GAAP.

(b) Since December 31, 2008, (i) there has been no material adverse change in the business, assets, operations, prospects or condition, financial or otherwise, of the Borrower and its Material Subsidiaries, taken as a whole and (ii) the business of the Borrower and its Material Subsidiaries has been conducted only in the ordinary course consistent with past business practices.

(c) Neither the Borrower nor any Material Subsidiary has on the date hereof (i) any material Debt (including Disqualified Capital Stock), except as referred to or reflected or provided for in the Financial Statements, or (ii) any contingent liabilities, off-balance sheet liabilities or partnerships, liabilities for taxes, unusual forward or long-term commitments or unrealized or anticipated losses from any unfavorable commitments, incurred outside the ordinary course of the Borrower’s or such Material Subsidiary’s business.

Section 7.05 Litigation.

(a) Except as set forth on Schedule 7.05, there are no material actions, suits, investigations or proceedings by or before any arbitrator or Governmental Authority pending against or, to the knowledge of the Borrower, threatened against or affecting the Borrower or any Material Subsidiary (i) not fully covered by insurance (except for normal deductibles) as to which there is a reasonable possibility of an adverse determination that, if adversely determined, could reasonably be expected, individually or in the aggregate, to result in a Material Adverse Effect, or (ii) that involve any Loan Document or the Transactions.

(b) Since the date of this Agreement, there has been no change in the status of the matters disclosed in Schedule 7.05 that, individually or in the aggregate, has resulted in, or materially increased the likelihood of, a Material Adverse Effect.

Section 7.06 Environmental Matters. Except as could not be reasonably expected to have a Material Adverse Effect (or with respect to (c), (d) and (e) below, where the failure to take such actions could not be reasonably expected to have a Material Adverse Effect):

(a) neither any Property of the Borrower or any Material Subsidiary nor the operations conducted thereon violate any order or requirement of any court or Governmental Authority or any Environmental Laws.

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(b) no Property of the Borrower or any Material Subsidiary nor the operations currently conducted thereon or, to the knowledge of the Borrower, by any prior owner or operator of such Property or operation, are in violation of or subject to any existing, pending or threatened action, suit, investigation, inquiry or proceeding by or before any court or Governmental Authority or to any remedial obligations under Environmental Laws.

(c) all notices, permits, licenses, exemptions, approvals or similar authorizations, if any, required to be obtained or filed in connection with the operation or use of any and all Property of the Borrower and each Material Subsidiary, including past or present treatment, storage, disposal or release of a hazardous substance, oil and gas waste or solid waste into the environment, have been duly obtained or filed, and the Borrower and each Material Subsidiary are in compliance with the terms and conditions of all such notices, permits, licenses and similar authorizations.

(d) all hazardous substances, solid waste and oil and gas waste, if any, generated at any and all Property of the Borrower or any Material Subsidiary have in the past been transported, treated and disposed of in accordance with Environmental Laws and so as not to pose an imminent and substantial endangerment to public health or welfare or the environment, and, to the knowledge of the Borrower, all such transport carriers and treatment and disposal facilities have been and are operating in compliance with Environmental Laws and so as not to pose an imminent and substantial endangerment to public health or welfare or the environment, and are not the subject of any existing, pending or threatened action, investigation or inquiry by any Governmental Authority in connection with any Environmental Laws.

(e) the Borrower has taken all steps reasonably necessary to determine and has determined that no oil, hazardous substances, solid waste or oil and gas waste, have been disposed of or otherwise released and there has been no threatened release of any oil, hazardous substances, solid waste or oil and gas waste on or to any Property of the Borrower or any Material Subsidiary except in compliance with Environmental Laws and so as not to pose an imminent and substantial endangerment to public health or welfare or the environment.

(f) to the extent applicable, all Property of the Borrower and each Material Subsidiary currently satisfies all design, operation, and equipment requirements imposed by the OPA, and the Borrower does not have any reason to believe that such Property, to the extent subject to the OPA, will not be able to maintain compliance with the OPA requirements during the term of this Agreement.

(g) neither the Borrower nor any Material Subsidiary has any known contingent liability or Remedial Work in connection with any release or threatened release of any oil, hazardous substance, solid waste or oil and gas waste into the environment.

Section 7.07 Compliance with the Laws and Agreements; No Defaults.

(a) Each of the Borrower and each Material Subsidiary is in compliance with all Governmental Requirements applicable to it or its Property and all agreements and other instruments binding upon it or its Property, and possesses all licenses, permits, franchises, exemptions, approvals and other governmental authorizations necessary for the ownership of its

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Property and the conduct of its business, except where the failure to do so, individually or in the aggregate, could not reasonably be expected to result in a Material Adverse Effect.

(b) Neither the Borrower nor any Material Subsidiary is in default nor has any event or circumstance occurred which, but for the expiration of any applicable grace period or the giving of notice, or both, would constitute a default or would require the Borrower or a Material Subsidiary to Redeem or make any offer to do any of the foregoing under any indenture, note, credit agreement or instrument pursuant to which any Material Indebtedness is outstanding or by which the Borrower or any Material Subsidiary or any of their Properties is bound.

Section 7.08 Investment Company Act. Neither the Borrower nor any Subsidiary is an “investment company” or a company “controlled” by an “investment company,” within the meaning of, or subject to regulation under, the Investment Company Act of 1940, as amended.

Section 7.09 Public Utility Holding Company Act. Neither the Borrower nor any Subsidiary is a “holding company,” or a “subsidiary company” of a “holding company,” or an “affiliate” of a “holding company” or of a “subsidiary company” of a “holding company,” or a “public utility” within the meaning of, or subject to regulation under, the Public Utility Holding Company Act of 1935, as amended.

Section 7.10 Taxes. Each of the Borrower and its Subsidiaries has timely filed or caused to be filed all Tax returns and reports required to have been filed and has paid or caused to be paid all Taxes required to have been paid by it, except (a) Taxes that are being contested in good faith by appropriate proceedings and for which the Borrower or such Subsidiary, as applicable, has set aside on its books adequate reserves in accordance with GAAP or (b) to the extent that the failure to do so could not reasonably be expected to result in a Material Adverse Effect. The charges, accruals and reserves on the books of the Borrower and its Subsidiaries in respect of Taxes and other governmental charges are, in the reasonable opinion of the Borrower, adequate. No Tax Lien has been filed and, to the knowledge of the Borrower, no claim is being asserted with respect to any such Tax or other such governmental charge.

Section 7.11 ERISA.

(a) The Borrower, the Subsidiaries and each ERISA Affiliate have complied in all material respects with ERISA and, where applicable, the Code regarding each Plan.

(b) Each Plan is, and has been, maintained in substantial compliance with ERISA and, where applicable, the Code.

(c) No act, omission or transaction has occurred which could result in imposition on the Borrower, any Subsidiary or any ERISA Affiliate (whether directly or indirectly) of (i) either a civil penalty assessed pursuant to subsections (c), (i) or (l) of section 502 of ERISA or a tax imposed pursuant to Chapter 43 of Subtitle D of the Code or (ii) breach of fiduciary duty liability damages under section 409 of ERISA.

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(d) No Plan (other than a defined contribution plan) or any trust created under any such Plan has been terminated since September 2, 1974. No liability to the PBGC (other than for the payment of current premiums which are not past due) by the Borrower, any Subsidiary or any ERISA Affiliate has been or is expected by the Borrower, any Subsidiary or any ERISA Affiliate to be incurred with respect to any Plan. No ERISA Event with respect to any Plan has occurred.

(e) Full payment when due has been made of all amounts which the Borrower, the Subsidiaries or any ERISA Affiliate is required under the terms of each Plan or applicable law to have paid as contributions to such Plan as of the date hereof, and no accumulated funding deficiency (as defined in section 302 of ERISA and section 412 of the Code), whether or not waived, exists with respect to any Plan.

(f) The actuarial present value of the benefit liabilities under each Plan which is subject to Title IV of ERISA does not, as of the end of the Borrower’s most recently ended fiscal year, exceed the current value of the assets (computed on a plan termination basis in accordance with Title IV of ERISA) of such Plan allocable to such benefit liabilities. The term “actuarial present value of the benefit liabilities” shall have the meaning specified in section 4041 of ERISA.

(g) Neither the Borrower, the Subsidiaries nor any ERISA Affiliate sponsors, maintains, or contributes to an employee welfare benefit plan, as defined in section 3(1) of ERISA, including, without limitation, any such plan maintained to provide benefits to former employees of such entities, that may not be terminated by the Borrower, a Subsidiary or any ERISA Affiliate in its sole discretion at any time without any material liability.

(h) Neither the Borrower, the Subsidiaries nor any ERISA Affiliate sponsors, maintains or contributes to, or has at any time in the six-year period preceding the date hereof sponsored, maintained or contributed to, any Multiemployer Plan.

(i) Neither the Borrower, the Subsidiaries nor any ERISA Affiliate is required to provide security under section 401(a)(29) of the Code due to a Plan amendment that results in an increase in current liability for the Plan.

Section 7.12 Disclosure; No Material Misstatements. The Borrower has disclosed to the Lenders all agreements, instruments and corporate or other restrictions to which it or any of its Material Subsidiaries is subject, and all other matters known to it, that, individually or in the aggregate, could reasonably be expected to result in a Material Adverse Effect. Neither the Information Memorandum nor any of the other reports, financial statements, certificates or other information furnished by or on behalf of the Borrower or any Material Subsidiary to the Administrative Agent or any Lender or any of their Affiliates in connection with the negotiation of this Agreement or any other Loan Document or delivered hereunder or under any other Loan Document (as modified or supplemented by other information so furnished) contains any material misstatement of fact or omits to state any material fact necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided that, with respect to projected financial information, the Borrower represents only that such information was prepared in good faith based upon assumptions believed to be reasonable at the

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time. There is no fact peculiar to the Borrower or any Material Subsidiary which could reasonably be expected to have a Material Adverse Effect or in the future is reasonably likely to have a Material Adverse Effect and which has not been set forth in this Agreement or the Loan Documents or the other documents, certificates and statements furnished to the Administrative Agent or the Lenders by or on behalf of the Borrower or any Material Subsidiary prior to, or on, the date hereof in connection with the transactions contemplated hereby. There are no material statements or conclusions in any Reserve Report which are based upon or include misleading information or fail to take into account material information regarding the matters reported therein.

Section 7.13 Insurance. The Borrower has, and has caused all its Material Subsidiaries to have, (a) all insurance policies sufficient for the compliance by each of them with all material Governmental Requirements and all material agreements and (b) insurance coverage in at least amounts and against such risk (including public liability) that are usually insured against by companies similarly situated and engaged in the same or a similar business for the assets and operations of the Borrower and its Material Subsidiaries.

Section 7.14 Restriction on Liens. Neither the Borrower nor any of the Material Subsidiaries is a party to any material agreement or arrangement (other than Capital Leases creating Liens permitted by Section 9.03(c), but then only on the Property subject of such Capital Lease), or subject to any order, judgment, writ or decree, which either restricts or purports to restrict its ability to grant Liens to the Administrative Agent and the Lenders on or in respect of their Properties to secure the Indebtedness and the Loan Documents.

Section 7.15 Subsidiaries. Except as set forth on Schedule 7.15 or as disclosed in writing to the Administrative Agent (which shall promptly furnish a copy to the Lenders), which shall be a supplement to Schedule 7.15, the Borrower has no Subsidiaries. Schedule 7.15 identifies each Subsidiary that is a Material Subsidiary, and each Material Subsidiary on such schedule is a Wholly-Owned Subsidiary. As of the Effective Date, there are no Material Subsidiaries.

Section 7.16 Location of Business and Offices. The Borrower’s jurisdiction of organization is Delaware; the name of the Borrower as listed in the public records of its jurisdiction of organization is St. Mary Land & Exploration Company; and the organizational identification number of the Borrower in its jurisdiction of organization is 44728. The Borrower’s principal place of business and chief executive office are located at the address specified in Section 12.01 (or as set forth in a notice delivered pursuant to Section 8.01(m) and Section 12.01(c)). Each Material Subsidiary’s jurisdiction of organization, name as listed in the public records of its jurisdiction of organization, organizational identification number in its jurisdiction of organization, and the location of its principal place of business and chief executive office is stated on Schedule 7.15 (or as set forth in a notice delivered pursuant to Section 8.01(m)).

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Section 7.17 Properties; Titles, Etc. Except for matters which could not reasonably be expected to have a Material Adverse Effect:

(a) Each of the Borrower and the Material Subsidiaries has good and defensible title to the Oil and Gas Properties evaluated in the most recently delivered Reserve Report and good title to all its personal Properties, in each case, free and clear of all Liens except Liens permitted by Section 9.03. After giving full effect to the Excepted Liens, the Borrower or the Material Subsidiary specified as the owner owns the net interests in production attributable to the Hydrocarbon Interests as reflected in the most recently delivered Reserve Report, and the ownership of such Properties shall not in any material respect obligate the Borrower or such Material Subsidiary to bear the costs and expenses relating to the maintenance, development and operations of each such Property in an amount in excess of the working interest of each Property set forth in the most recently delivered Reserve Report that is not offset by a corresponding proportionate increase in the Borrower’s or such Material Subsidiary’s net revenue interest in such Property.

(b) All material leases and agreements necessary for the conduct of the business of the Borrower and the Material Subsidiaries are valid and subsisting, in full force and effect, and there exists no default or event or circumstance which with the giving of notice or the passage of time or both would give rise to a default under any such lease or leases, which would affect in any material respect the conduct of the business of the Borrower and the Material Subsidiaries, taken as a whole.

(c) The rights and Properties presently owned, leased or licensed by the Borrower and the Material Subsidiaries including all easements and rights of way, include all rights and Properties necessary to permit the Borrower and the Material Subsidiaries to conduct their business in all material respects in the same manner as its business has been conducted prior to the date hereof.

(d) All of the Properties of the Borrower and the Material Subsidiaries which are reasonably necessary for the operation of their businesses are in good working condition and are maintained in accordance with prudent business standards.

(e) The Borrower and each Material Subsidiary owns, or is licensed to use, all trademarks, tradenames, copyrights, patents and other intellectual Property material to its business, and the use thereof by the Borrower and such Material Subsidiary does not infringe upon the rights of any other Person, except for any such infringements that, individually or in the aggregate, could not reasonably be expected to result in a Material Adverse Effect. The Borrower and its Material Subsidiaries either own or have valid licenses or other rights to use all databases, geological data, geophysical data, engineering data, seismic data, maps, interpretations and other technical information used in their businesses as presently conducted, subject to the limitations contained in the agreements governing the use of the same, which limitations are customary for companies engaged in the business of the exploration and production of Hydrocarbons, with such exceptions as could not reasonably be expected to have a Material Adverse Effect.

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Section 7.18 Maintenance of Properties. Except for such acts or failures to act as could not be reasonably expected to have a Material Adverse Effect, the Oil and Gas Properties (and Properties unitized therewith) have been maintained, operated and developed in a good and workmanlike manner and in conformity with all Government Requirements and in conformity with the provisions of all leases, subleases or other contracts comprising a part of the Hydrocarbon Interests and other contracts and agreements forming a part of the Oil and Gas Properties. Specifically in connection with the foregoing, except for those as could not be reasonably expected to have a Material Adverse Effect, (i) no Oil and Gas Property is subject to having allowable production reduced below the full and regular allowable (including the maximum permissible tolerance) because of any overproduction (whether or not the same was permissible at the time) and (ii) none of the wells comprising a part of the Oil and Gas Properties (or Properties unitized therewith) is deviated from the vertical more than the maximum permitted by Government Requirements, and such wells are, in fact, bottomed under and are producing from, and the well bores are wholly within, the Oil and Gas Properties (or in the case of wells located on Properties unitized therewith, such unitized Properties). All pipelines, wells, gas processing plants, platforms and other material improvements, fixtures and equipment owned in whole or in part by the Borrower or any of its Material Subsidiaries that are necessary to conduct normal operations are being maintained in a state adequate to conduct normal operations, and with respect to such of the foregoing which are operated by the Borrower or any of its Material Subsidiaries, in a manner consistent with the Borrower’s or its Material Subsidiaries’ past practices (other than those the failure of which to maintain in accordance with this Section 7.18 could not reasonably be expect to have a Material Adverse Effect).

Section 7.19 Gas Imbalances, Prepayments. As of the date hereof, except as set forth on Schedule 7.19 or on the most recent certificate delivered pursuant to Section 8.12(c), on a net basis there are no gas imbalances, take or pay or other prepayments which would require the Borrower or any of its Material Subsidiaries to deliver Hydrocarbons produced from the Oil and Gas Properties at some future time without then or thereafter receiving full payment therefor exceeding three million mcf of gas (on an mcf equivalent basis) in the aggregate.

Section 7.20 Marketing of Production. Except for contracts listed and in effect on the date hereof on Schedule 7.20, and thereafter either disclosed in writing to the Administrative Agent or included in the most recently delivered Reserve Report (with respect to all of which contracts the Borrower represents that it or its Material Subsidiaries are receiving a price for all production sold thereunder which is computed substantially in accordance with the terms of the relevant contract and are not having deliveries curtailed substantially below the subject Property’s delivery capacity), no material agreements exist which are not cancelable on 60 days notice or less without penalty or detriment for the sale of production from the Borrower’s or its Material Subsidiaries’ Hydrocarbons (including, without limitation, calls on or other rights to purchase, production, whether or not the same are currently being exercised) that (a) pertain to the sale of production at a fixed price and (b) have a maturity or expiry date of longer than six (6) months from the date hereof.

Section 7.21 Swap Agreements. Schedule 7.21, as of the date hereof, and after the date hereof, each report required to be delivered by the Borrower pursuant to Section 8.01(d), sets forth, a true and complete list of all Swap Agreements of the Borrower and each Material Subsidiary, the material terms thereof (including the type, term, effective date, termination date

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and notional amounts or volumes), the net mark to market value thereof, all credit support agreements relating thereto (including any margin required or supplied) and the counterparty to each such agreement.

Section 7.22 Use of Loans and Letters of Credit. The proceeds of the Loans and the Letters of Credit shall be used (a) to provide working capital for exploration, development and production operations, (b) to finance the acquisition of Oil & Gas Properties, (c) to renew, rearrange, modify and extend the Debt under the Existing Credit Agreement, (d) for general corporate purposes, (e) to repay Swingline Loans and (f) to purchase or otherwise make payments in respect of the Senior Convertible Notes subject to the limitations on such purchases and payments provided herein. The Borrower and its Subsidiaries are not engaged principally, or as one of its or their important activities, in the business of extending credit for the purpose, whether immediate, incidental or ultimate, of buying or carrying margin stock (within the meaning of Regulation U or X of the Board). No part of the proceeds of any Loan or Letter of Credit will be used for any purpose which violates the provisions of Regulations U or X of the Board.

Section 7.23 Solvency. After giving effect to the transactions contemplated hereby, (a) the aggregate assets (after giving effect to amounts that could reasonably be received by reason of indemnity, offset, insurance or any similar arrangement), at a fair valuation, of the Borrower and the Guarantors, taken as a whole, will exceed the aggregate Debt of the Borrower and the Guarantors on a consolidated basis, as the Debt becomes absolute and matures, (b) each of the Borrower and the Guarantors will not have incurred or intended to incur, and will not believe that it will incur, Debt beyond its ability to pay such Debt (after taking into account the timing and amounts of cash to be received by each of the Borrower and the Guarantors and the amounts to be payable on or in respect of its liabilities, and giving effect to amounts that could reasonably be received by reason of indemnity, offset, insurance or any similar arrangement) as such Debt becomes absolute and matures and (c) each of the Borrower and the Guarantors will not have (and will have no reason to believe that it will have thereafter) unreasonably small capital for the conduct of its business.

Section 7.24 Material Agreements. The Borrower has delivered or caused to be delivered to the Administrative Agent true and correct copies of the Material Agreements. The Material Agreements have not been modified, terminated, assigned or pledged by Borrower or any Material Subsidiary, as applicable, are in full force and effect and no party is in default in the performance of its obligations thereunder in any material respect.

ARTICLE VIII

Affirmative Covenants

Until the Commitments have expired or been terminated and the principal of and interest on each Loan and all fees payable hereunder and all other amounts payable under the Loan Documents shall have been paid in full and all Letters of Credit shall have expired or terminated and all LC Disbursements shall have been reimbursed, the Borrower covenants and agrees with the Lenders that:

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Section 8.01 Financial Statements; Ratings Change; Other Information. The Borrower will furnish to the Administrative Agent for electronic or other distribution to each Lender:

(a) Annual Financial Statements. Within 90 days after the end of each fiscal year of the Borrower, (i) its audited consolidated balance sheet and related statements of operations, stockholders’ equity and cash flows as of the end of and for such year, setting forth in each case in comparative form the figures for the previous fiscal year, all reported on by Deloitte & Touche or other independent public accountants of recognized national standing (without a “going concern” or like qualification or exception and without any qualification or exception as to the scope of such audit) to the effect that such consolidated financial statements present fairly in all material respects the financial condition and results of operations of the Borrower and its Consolidated Subsidiaries on a consolidated basis in accordance with GAAP consistently applied and (ii) if dispositions of any Oil and Gas Properties exceeded $50,000,000 during such fiscal year, its unaudited consolidated pro forma statements reflecting such dispositions of Oil and Gas Properties during such fiscal year as of the end of and for such fiscal year, setting forth in each case in comparative form the figures for the previous fiscal year, all certified by one of its Financial Officers as presenting fairly in all material respects the financial condition and results of operations of the Borrower and its Consolidated Subsidiaries on a consolidated basis in accordance with GAAP consistently applied.

(b) Quarterly Financial Statements. Within 45 days after the end of each of the first three fiscal quarters of each fiscal year of the Borrower, its consolidated balance sheet and related statements of operations, stockholders’ equity and cash flows as of the end of and for such fiscal quarter (including, if dispositions of any Oil and Gas Properties exceeded $25,000,000 during such fiscal quarter, pro forma statements reflecting such dispositions of Oil and Gas Properties during such fiscal quarter) and the then elapsed portion of the fiscal year, setting forth in each case in comparative form the figures for the corresponding period or periods of (or, in the case of the balance sheet, as of the end of) the previous fiscal year, all certified by one of its Financial Officers as presenting fairly in all material respects the financial condition and results of operations of the Borrower and its Consolidated Subsidiaries on a consolidated (and pro forma, where applicable) basis in accordance with GAAP consistently applied, subject to normal year-end audit adjustments and the absence of footnotes.

(c) Certificate of Financial Officer – Compliance. Concurrently with any delivery of financial statements under Section 8.01(a) or Section 8.01(b), a certificate of a Financial Officer in substantially the form of Exhibit B hereto (i) certifying as to whether a Default has occurred and, if a Default has occurred, specifying the details thereof and any action taken or proposed to be taken with respect thereto, (ii) setting forth reasonably detailed calculations demonstrating compliance with Section 8.13(b) and Section 9.01 and (iii) stating whether any change in GAAP or in the application thereof has occurred since the date of the audited financial statements referred to in Section 7.04 and, if any such change has occurred, specifying the effect of such change on the financial statements accompanying such certificate.

(d) Listing of Swap Agreements. Concurrently with any delivery of financial statements under Section 8.01(a) and Section 8.01(b), a true and complete list of all Swap Agreements of the Borrower and each Material Subsidiary as of the last Business Day of such fiscal quarter or fiscal year, which shall depict the material terms thereof (including the type,

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term, effective date, termination date and notional amounts or volumes), the net mark-to-market value therefor, any new credit support agreements relating thereto not listed on Schedule 7.20, any margin required or supplied under any credit support document, and the counterparty to each such agreement.

(e) Certificate of Insurer – Insurance Coverage. Concurrently with any delivery of financial statements under Section 8.01(a), a certificate of insurance coverage from each insurer with respect to the insurance required by Section 8.07, in form and substance satisfactory to the Administrative Agent, and, if requested by the Administrative Agent or any Lender, all copies of the applicable policies.

(f) Other Accounting Reports. Promptly upon receipt thereof, a copy of each other report or letter submitted to the Borrower or any of its Subsidiaries by independent accountants in connection with any annual, interim or special audit made by them of the books of the Borrower or any such Subsidiary, and a copy of any response by the Borrower or any such Subsidiary, or the Board of Directors of the Borrower or any such Subsidiary, to such letter or report.

(g) SEC and Other Filings; Reports to Shareholders. Promptly after the same become publicly available, copies of all periodic and other reports, proxy statements and other materials filed by the Borrower or any Subsidiary with the SEC, or with any national securities exchange, or distributed by the Borrower to its shareholders generally, as the case may be.

(h) Notices Under Material Instruments. Promptly after the furnishing thereof, copies of any financial statement, report or notice furnished to or by any Person pursuant to the terms of any preferred stock designation, indenture, loan or credit or other similar agreement, other than this Agreement and not otherwise required to be furnished to the Lenders pursuant to any other provision of this Section 8.01.

(i) Lists of Purchasers. Promptly following the written request from the Administrative Agent thereof, a list of all Persons purchasing Hydrocarbons from the Borrower or any Material Subsidiary.

(j) Notice of Sales of Oil and Gas Properties. In the event the Borrower or any Material Subsidiary intends to sell, transfer, assign or otherwise dispose of any Oil or Gas Properties or any Equity Interests in any Subsidiary in accordance with Section 9.12 for consideration in excess of $15,000,000, prior written notice of such disposition, the price thereof and the anticipated date of closing.

(k) Notice of Casualty Events. Prompt written notice, and in any event within three Business Days, of the occurrence of any Casualty Event or the commencement of any action or proceeding that could reasonably be expected to result in a Casualty Event.

(l) Issuance of Permitted Refinancing Debt. In the event the Borrower intends to refinance any Debt with the proceeds of Permitted Refinancing Debt, prior written notice of such intended offering therefor, the amount thereof and the anticipated date of closing to Agent and the Borrower will furnish to Agent a copy of the preliminary offering memorandum (if any) and the final offering memorandum (if any).

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(m) Information Regarding Borrower and Guarantors. Prompt written notice (and in any event within thirty (30) days upon becoming aware thereof) of any change (i) in the Borrower or any Guarantor’s corporate name or in any trade name used to identify such Person in the conduct of its business or in the ownership of its Properties, (ii) in the location of the Borrower or any Guarantor’s chief executive office or principal place of business, (iii) in the Borrower or any Guarantor’s identity or corporate structure or in the jurisdiction in which such Person is incorporated or formed, (iv) in the Borrower or any Guarantor’s jurisdiction of organization or such Person’s organizational identification number in such jurisdiction of organization, and (v) in the Borrower or any Guarantor’s federal taxpayer identification number.

(n) Other Requested Information. Promptly following any request therefor, such other information regarding the operations, business affairs and financial condition of the Borrower or any Subsidiary (including, without limitation, any Plan or Multiemployer Plan and any reports or other information required to be filed under ERISA), or compliance with the terms of this Agreement or any other Loan Document, as the Administrative Agent or any Lender may reasonably request.

Section 8.02 Notices of Material Events. The Borrower will furnish to the Administrative Agent and each Lender prompt written notice of the following:

(a) the occurrence of any Default;

(b) the filing or commencement of any action, suit or proceeding by or before any arbitrator or Governmental Authority against or affecting the Borrower or any Affiliate thereof that, if adversely determined, could reasonably be expected to result in a Material Adverse Effect;

(c) the occurrence of any ERISA Event that, alone or together with any other ERISA Events that have occurred, could reasonably be expected to result in liability of the Borrower and its Subsidiaries in an aggregate amount exceeding $6,000,000; and

(d) any other development that results in, or could reasonably be expected to result in, a Material Adverse Effect.

Each notice delivered under this Section 8.02 shall be accompanied by a statement of a Responsible Officer setting forth the details of the event or development requiring such notice and any action taken or proposed to be taken with respect thereto.

Section 8.03 Existence; Conduct of Business. The Borrower will, and will cause each Material Subsidiary to, do or cause to be done all things necessary to preserve, renew and keep in full force and effect its legal existence and the rights, licenses, permits, privileges and franchises material to the conduct of its business and maintain, if necessary, its qualification to do business in each other jurisdiction in which its Oil and Gas Properties is located or the ownership of its Properties requires such qualification, except where the failure to so qualify could not reasonably be expected to have a Material Adverse Effect; provided that the foregoing shall not prohibit any merger, consolidation, liquidation or dissolution permitted under Section 9.11.

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Section 8.04 Payment of Obligations. The Borrower will, and will cause each Material Subsidiary to, pay its obligations, including Tax liabilities of the Borrower and all of its Subsidiaries before the same shall become delinquent or in default, except where (a) the validity or amount thereof is being contested in good faith by appropriate proceedings, (b) the Borrower or such Material Subsidiary has set aside on its books adequate reserves with respect thereto in accordance with GAAP and (c) the failure to make payment pending such contest could not reasonably be expected to result in a Material Adverse Effect or result in the seizure or levy of any Property of the Borrower or any Subsidiary having a fair market value, individually or in the aggregate, in excess of $5,000,000.

Section 8.05 Performance of Obligations under Loan Documents. The Borrower will pay the Notes according to the reading, tenor and effect thereof, and the Borrower will and will cause each Material Subsidiary to do and perform every act and discharge all of the obligations to be performed and discharged by them under the Loan Documents, including, without limitation, this Agreement, at the time or times and in the manner specified.

Section 8.06 Operation and Maintenance of Properties. Except for matters that could not reasonably be expected to result in a Material Adverse Effect, the Borrower, at its own expense, will, and will cause each Material Subsidiary to:

(a) operate its Oil and Gas Properties and other material Properties or cause such Oil and Gas Properties and other material Properties to be operated in a careful and efficient manner in accordance with the practices of the industry and in compliance with all applicable contracts and agreements and in compliance with all Governmental Requirements, including applicable pro ration requirements and Environmental Laws, and all applicable laws, rules and regulations of every other Governmental Authority from time to time constituted to regulate the development and operation of its Oil and Gas Properties and the production and sale of Hydrocarbons and other minerals therefrom, except, in each case, where the failure to comply could not reasonably be expected to have a Material Adverse Effect.

(b) keep and maintain all Property material to the conduct of its business in good working order and condition, ordinary wear and tear excepted, preserve, maintain and keep in good repair, working order and efficiency (ordinary wear and tear excepted) all of its material Oil and Gas Properties and other material Properties, including all equipment, machinery and facilities.

(c) promptly pay and discharge, or make reasonable and customary efforts to cause to be paid and discharged, all delay rentals, royalties, expenses and indebtedness accruing under the leases or other agreements affecting or pertaining to its Oil and Gas Properties and will do all other things necessary to keep unimpaired their rights with respect thereto and prevent any forfeiture thereof or default thereunder.

(d) promptly perform or make reasonable and customary efforts to cause to be performed, in accordance with industry standards, the obligations required by each and all of the assignments, deeds, leases, sub-leases, contracts and agreements affecting its interests in its Oil and Gas Properties and other material Properties.

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(e) operate its Oil and Gas Properties and other material Properties or cause or make reasonable and customary efforts to cause such Oil and Gas Properties and other material Properties to be operated in accordance with the practices of the industry and in material compliance with all applicable contracts and agreements and in compliance in all material respects with all Governmental Requirements.

(f) to the extent the Borrower or a Material Subsidiary is not the operator of any Property, the Borrower shall use reasonable efforts to cause the operator to comply with this Section 8.06.

Section 8.07 Insurance. The Borrower will, and will cause each Material Subsidiary to, maintain, with financially sound and reputable insurance companies, insurance in such amounts and against such risks as are customarily maintained by companies engaged in the same or similar businesses operating in the same or similar locations.

Section 8.08 Books and Records; Inspection Rights. The Borrower will, and will cause each Material Subsidiary to, keep proper books of record and account in which full, true and correct entries are made of all dealings and transactions in relation to its business and activities. The Borrower will, and will cause each Material Subsidiary to, permit any representatives designated by the Administrative Agent or any Lender, upon reasonable prior notice, to visit and inspect its Properties, to examine and make extracts from its books and records, and to discuss its affairs, finances and condition with its officers and independent accountants, all at such reasonable times and as often as reasonably requested.

Section 8.09 Compliance with Laws. The Borrower will, and will cause each Material Subsidiary to, comply with all laws, rules, regulations and orders of any Governmental Authority applicable to it or its Property, except where the failure to do so, individually or in the aggregate, could not reasonably be expected to result in a Material Adverse Effect.

Section 8.10 Environmental Matters.

(a) The Borrower shall at its sole expense: (i) comply, and shall cause its Properties and operations and each Subsidiary and each Subsidiary’s Properties and operations to comply, with all applicable Environmental Laws, the breach of which could be reasonably expected to have a Material Adverse Effect; (ii) not dispose of or otherwise release, and shall cause each Subsidiary not to dispose of or otherwise release, any oil, oil and gas waste, hazardous substance, or solid waste on, under, about or from any of the Borrower’s or its Subsidiaries’ Properties or any other Property to the extent caused by the Borrower’s or any of its Subsidiaries’ operations except in compliance with applicable Environmental Laws, the disposal or release of which could reasonably be expected to have a Material Adverse Effect; (iii) timely obtain or file, and shall cause each Subsidiary to timely obtain or file, all notices, permits, licenses, exemptions, approvals, registrations or other authorizations, if any, required under applicable Environmental Laws to be obtained or filed in connection with the operation or use of the Borrower’s or its Subsidiaries’ Properties, which failure to obtain or file could reasonably be expected to have a Material Adverse Effect; (iv) promptly commence and diligently prosecute to completion, and shall cause each Subsidiary to promptly commence and diligently prosecute to completion, any assessment, evaluation, investigation, monitoring,

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containment, cleanup, removal, repair, restoration, remediation or other remedial obligations (collectively, the “Remedial Work”) in the event any Remedial Work is required or reasonably necessary under applicable Environmental Laws because of or in connection with the actual or suspected past, present or future disposal or other release of any oil, oil and gas waste, hazardous substance or solid waste on, under, about or from any of the Borrower’s or its Subsidiaries’ Properties, which failure to commence and diligently prosecute to completion could reasonably be expected to have a Material Adverse Effect; and (v) establish and implement, and shall cause each Subsidiary to establish and implement, such procedures as may be necessary to continuously determine and assure that the Borrower’s and its Subsidiaries’ obligations under this Section 8.10(a) are timely and fully satisfied, which failure to establish and implement could reasonably be expected to have a Material Adverse Effect.

(b) The Borrower will promptly, but in no event later than five days of the occurrence of a triggering event, notify the Administrative Agent and the Lenders in writing of any threatened action, investigation or inquiry by any Governmental Authority or any threatened demand or lawsuit by any landowner or other third party against the Borrower or its Subsidiaries or their Properties of which the Borrower has knowledge in connection with any Environmental Laws (excluding routine testing and corrective action) if the Borrower reasonably anticipates that such action will result in liability (whether individually or in the aggregate) in excess of $10,000,000, not fully covered by insurance, subject to normal deductibles.

(c) In connection with any future acquisitions of Oil and Gas Properties or other Properties, the Borrower will and will cause each Subsidiary to provide environmental audits and tests in accordance with American Society of Testing Materials standards upon request by the Administrative Agent and the Lenders, except in circumstances in which the Borrower or any Subsidiary is acquiring an additional interest in an Oil and Gas Property or other Property.

Section 8.11 Further Assurances.

(a) The Borrower at its expense will, and will cause each Material Subsidiary to, promptly execute and deliver to the Administrative Agent all such other documents, agreements and instruments reasonably requested by the Administrative Agent to comply with, cure any defects or accomplish the conditions precedent, covenants and agreements of the Borrower or any Material Subsidiary, as the case may be, in the Loan Documents, including the Notes, or to further evidence and more fully describe the collateral intended as security for the Indebtedness, or to correct any omissions in this Agreement or the Security Instruments, or to state more fully the obligations secured therein, or to perfect, protect or preserve any Liens created pursuant to this Agreement or any of the Security Instruments or the priority thereof, or to make any recordings, file any notices or obtain any consents, all as may be reasonably necessary or appropriate, in the reasonable discretion of the Administrative Agent, in connection therewith.

(b) The Borrower hereby authorizes the Administrative Agent to file one or more financing or continuation statements, and amendments thereto, relative to all or any part of the Mortgaged Property without the signature of the Borrower or any Material Subsidiary where permitted by law. A carbon, photographic or other reproduction of the Security Instruments

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or any financing statement covering the Mortgaged Property or any part thereof shall be sufficient as a financing statement where permitted by law. The Administrative Agent will promptly send the Borrower any financing or continuation statements it files without the signature of the Borrower or any other Guarantor and the Administrative Agent will promptly send the Borrower the filing or recordation information with respect thereto.

Section 8.12 Reserve Reports.

(a) On or before February 28th (or February 29th, as applicable) and August 31st of each year, commencing August 31, 2009, the Borrower shall furnish to the Administrative Agent and the Lenders a Reserve Report. The Reserve Report as of December 31 of each year shall have the majority of PV-10 value prepared or audited by one or more Approved Petroleum Engineers, and the Reserve Report as of June 30 of each year shall be prepared by or under the supervision of the Vice President, Engineering and Evaluation of the Borrower who shall certify such Reserve Report to be true and accurate and to have been prepared in accordance with the procedures used in the immediately preceding December 31 Reserve Report.

(b) In the event of an Interim Redetermination, the Borrower shall furnish to the Administrative Agent and the Lenders a Reserve Report prepared by or under the supervision of the Vice President, Engineering and Evaluation of the Borrower who shall certify such Reserve Report to be true and accurate and to have been prepared in accordance with the procedures used in the immediately preceding December 31 Reserve Report. For any Interim Redetermination requested by the Administrative Agent or the Borrower pursuant to Section 2.07(b), the Borrower shall provide such Reserve Report with an “as of” date as required by the Administrative Agent as soon as possible, but in any event no later than thirty (30) days following the receipt of such request.

(c) With the delivery of each Reserve Report, the Borrower shall provide to the Administrative Agent and the Lenders a certificate from a Responsible Officer certifying that in all material respects: (i) the information contained in the Reserve Report and any other information delivered in connection therewith is true and correct, (ii) the Borrower or its Material Subsidiaries owns good and defensible title to the Oil and Gas Properties evaluated in such Reserve Report and such Properties are free of all Liens except for Liens permitted by Section 9.03, (iii) except as set forth on an exhibit to the certificate, on a net basis there are no gas imbalances, take or pay or other prepayments in excess of the volume specified in Section 7.19 with respect to its Oil and Gas Properties evaluated in such Reserve Report which would require the Borrower or any Material Subsidiary to deliver Hydrocarbons either generally or produced from such Oil and Gas Properties at some future time without then or thereafter receiving full payment therefor, (iv) none of their Oil and Gas Properties have been sold since the date of the last Borrowing Base determination except as set forth on an exhibit to the certificate, which certificate shall list all of its Oil and Gas Properties sold and in such detail as reasonably required by the Administrative Agent, (v) attached to the certificate is a list of all marketing agreements entered into subsequent to the later of the date hereof or the most recently delivered Reserve Report which the Borrower could reasonably be expected to have been obligated to list on Schedule 7.20 had such agreement been in effect on the date hereof and (vi) attached thereto is a schedule of the Oil and Gas Properties evaluated by such Reserve Report

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that are Mortgaged Properties and demonstrating the percentage of the Borrowing Base that the value of such Mortgaged Properties represent.

Section 8.13 Title Information.

(a) On or before the delivery to the Administrative Agent and the Lenders of each Reserve Report required by Section 8.12(a), the Borrower will deliver title information in form and substance acceptable to the Administrative Agent covering enough of the Oil and Gas Properties evaluated by such Reserve Report that were not included in the immediately preceding Reserve Report, so that the Administrative Agent shall have received together with title information previously delivered to the Administrative Agent, satisfactory title information on at least 80% of the total value of the Oil and Gas Properties evaluated by such Reserve Report.

(b) If the Borrower has provided title information for additional Properties under Section 8.13(a), the Borrower shall, within 60 days of notice from the Administrative Agent that title defects or exceptions exist with respect to such additional Properties, either (i) cure any such title defects or exceptions (including defects or exceptions as to priority) which are not permitted by Section 9.03 raised by such information, (ii) substitute acceptable Mortgaged Properties with no title defects or exceptions except for Excepted Liens (other than Excepted Liens described in clauses (e), (g) and (h) of such definition) having an equivalent value or (iii) deliver title information in form and substance acceptable to the Administrative Agent so that the Administrative Agent shall have received, together with title information previously delivered to the Administrative Agent, satisfactory title information on at least 80% of the value of the Mortgaged Properties evaluated by such Reserve Report.

(c) If the Borrower is unable to cure any title defect requested by the Administrative Agent or the Lenders to be cured within the 60-day period or the Borrower does not comply with the requirements to provide acceptable title information covering 80% of the value of the Mortgaged Properties evaluated in the most recent Reserve Report, such default shall not be a Default, but instead the Administrative Agent and/or the Majority Lenders shall have the right to exercise the following remedy in their sole discretion from time to time, and any failure to so exercise this remedy at any time shall not be a waiver as to future exercise of the remedy by the Administrative Agent or the Lenders. To the extent that the Administrative Agent or the Majority Lenders are not satisfied with title to any Mortgaged Property after the 60-day period has elapsed, such unacceptable Mortgaged Property shall not count towards the 80% requirement, and the Administrative Agent may send a notice to the Borrower and the Lenders that the then outstanding Borrowing Base shall be reduced by an amount as determined by the Majority Lenders to cause the Borrower to be in compliance with the requirement to provide acceptable title information on 80% of the value of the Mortgaged Properties. This new Borrowing Base shall become effective immediately after receipt of such notice.

Section 8.14 Additional Collateral; Additional Guarantors.

(a) In connection with each redetermination of the Borrowing Base, the Borrower shall review the Reserve Report and the list of current Mortgaged Properties (as described in Section 8.12(c)(vi)) to ascertain whether the Mortgaged Properties represent at least

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80% of the total value of the Oil and Gas Properties evaluated in the most recently completed Reserve Report after giving effect to exploration and production activities, acquisitions, dispositions and production. In the event that the Mortgaged Properties do not represent at least 80% of such total value, then the Borrower shall, and shall cause its Material Subsidiaries to, grant to the Administrative Agent as security for the Indebtedness a first-priority Lien interest (subject only to Excepted Liens of the type described in clauses (a) to (d) and (f) of the definition thereof, but subject to the provisos at the end of such definition) on additional Oil and Gas Properties not already subject to a Lien of the Security Instruments such that after giving effect thereto, the Mortgaged Properties will represent at least 80% of such total value. All such Liens will be created and perfected by and in accordance with the provisions of deeds of trust, security agreements and financing statements or other Security Instruments, all in form and substance reasonably satisfactory to the Administrative Agent and in sufficient executed (and acknowledged where necessary or appropriate) counterparts for recording purposes. In order to comply with the foregoing, if any Material Subsidiary places a Lien on its Oil and Gas Properties and such Material Subsidiary is not a Guarantor, then it shall become a Guarantor and comply with Section 8.14(b).

(b) In the event that any Subsidiary becomes a Material Subsidiary after the Closing Date, the Borrower shall promptly cause such Subsidiary to guarantee the Indebtedness pursuant to the Guaranty Agreement. In connection with any such guaranty, the Borrower shall, or shall cause such Subsidiary to, (A) execute and deliver a supplement to the Guaranty Agreement executed by such Subsidiary, (B) execute and deliver a Pledge – Borrower, pledging all of the Equity Interests of such new Subsidiary (including, without limitation, delivery of original stock certificates evidencing the Equity Interests of such Subsidiary, together with an appropriate undated stock powers for each certificate duly executed in blank by the registered owner thereof) and (C) execute and deliver such other additional closing documents, certificates and legal opinions as shall reasonably be requested by the Administrative Agent.

Section 8.15 ERISA Compliance. The Borrower will promptly furnish and will cause the Subsidiaries and any ERISA Affiliate to promptly furnish to the Administrative Agent (i) promptly after the filing thereof with the United States Secretary of Labor, the Internal Revenue Service or the PBGC, copies of each annual and other report with respect to each Plan or any trust created thereunder, (ii) immediately upon becoming aware of the occurrence of any ERISA Event or of any “prohibited transaction,” as described in section 406 of ERISA or in section 4975 of the Code, in connection with any Plan or any trust created thereunder, a written notice signed by the President or the principal Financial Officer, the Subsidiary or the ERISA Affiliate, as the case may be, specifying the nature thereof, what action the Borrower, the Subsidiary or the ERISA Affiliate is taking or proposes to take with respect thereto, and, when known, any action taken or proposed by the Internal Revenue Service, the Department of Labor or the PBGC with respect thereto, and (iii) immediately upon receipt thereof, copies of any notice of the PBGC’s intention to terminate or to have a trustee appointed to administer any Plan. With respect to each Plan (other than a Multiemployer Plan), the Borrower will, and will cause each Subsidiary and ERISA Affiliate to, (i) satisfy in full and in a timely manner, without incurring any late payment or underpayment charge or penalty and without giving rise to any lien, all of the contribution and funding requirements of section 412 of the Code (determined without regard to subsections (d), (e), (f) and (k) thereof) and of section 302 of ERISA (determined without regard to sections 303, 304 and 306 of ERISA), and (ii) pay, or cause to be paid, to the PBGC in a timely manner,

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without incurring any late payment or underpayment charge or penalty, all premiums required pursuant to sections 4006 and 4007 of ERISA.

Section 8.16 Performance of Material Agreements. The Borrower will perform and observe, and cause each Material Subsidiary to perform and observe, in all material respects each of the provisions of the Material Agreements to which it is a party on its part to be performed or observed prior to the termination thereof.

ARTICLE IX

Negative Covenants

Until the Commitments have expired or terminated and the principal of and interest on each Loan and all fees payable hereunder and all other amounts payable under the Loan Documents have been paid in full and all Letters of Credit have expired or terminated and all LC Disbursements shall have been reimbursed, the Borrower covenants and agrees with the Lenders that:

Section 9.01 Financial Covenants.

(a) Ratio of Total Debt to EBITDA. The Borrower will not, at any time, permit its ratio of Total Debt as of such time to EBITDA for the four fiscal quarters ending on the last day of the fiscal quarter immediately preceding the date of determination for which financial statements are available to be greater than 3.5 to 1.0. For purposes of calculating the ratio of Total Debt to EBITDA for any four fiscal quarter period, dispositions of Oil and Gas Properties in excess of $50,000,000 in the aggregate during such four fiscal quarter period shall be included on a pro forma basis, as if such dispositions had occurred at the beginning of the four fiscal quarter period and the Borrower may provide pro forma calculations on the same basis with respect to acquisitions of Oil and Gas Properties during any such four fiscal quarter period at the Borrower’s election. Unless an Event of Default has occurred and is continuing, for purposes of determining the ratio of Total Debt to EBITDA as of any date of determination, the calculation of Total Debt shall be made by subtracting therefrom an aggregate amount of cash on deposit in any cash collateral account as of such date as a result of the existence of any Impacted Lender.

(b) Current Ratio. The Borrower will not permit, as of the last day of any fiscal quarter, its ratio of (i) consolidated current assets (including the unused amount of the total Commitments, but excluding non-cash assets under FAS 133) to (ii) consolidated current liabilities (excluding non-cash obligations under FAS 133 and the current portion of the Aggregate Commitment) to be less than 1.0 to 1.0. Unless an Event of Default has occurred and is continuing, for purposes of determining the ratio of consolidated current assets to consolidated current liabilities the calculation of consolidated current liabilities shall be made by subtracting therefrom the aggregate cash on deposit in any cash collateral account as of such date as a result of the existence of any Impacted Lender.

Section 9.02 Debt. Neither the Borrower nor any Material Subsidiary will incur, create, assume or suffer to exist any Debt, except:

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(a) the Notes or other Indebtedness arising under the Loan Documents or any guaranty of or suretyship arrangement for the Notes or other Indebtedness arising under the Loan Documents.

(b) Debt of the Borrower and its Material Subsidiaries existing on the date hereof that is reflected in the Financial Statements, and any Permitted Refinancing Debt in respect thereof.

(c) accounts payable (for the deferred purchase price of Property or services) from time to time incurred in the ordinary course of business which are not greater than sixty (60) days past the date of invoice or delinquent or which are being contested in good faith by appropriate action and for which adequate reserves have been maintained in accordance with GAAP.

(d) Debt incurred to finance the acquisition, construction or improvement of any fixed or capital assets, including Capital Leases and any Debt assumed in connection with the acquisition of any such assets or secured by a Lien on any such assets prior to the acquisition thereof, and extensions, renewals and replacements of any such Debt that do not increase the outstanding principal amount thereof; provided that (i) in the case of any acquisition, construction or improvement of any fixed or capital asset, such Debt (other than Capital Leases) is incurred prior to or within 90 days after such acquisition or the completion of such construction or improvement and (ii) the aggregate principal amount of Debt permitted by this clause (d) shall not exceed $50,000,000 at any time outstanding.

(e) Debt associated with bonds or surety obligations required by Governmental Requirements in connection with the operation of the Oil and Gas Properties.

(f) intercompany Debt between the Borrower and any Material Subsidiary or between Material Subsidiaries to the extent permitted by Section 9.05(g); provided that such Debt is not held, assigned, transferred, negotiated or pledged to any Person other than the Borrower or one of its Wholly-Owned Subsidiaries, and, provided further, that any such Debt owed by either the Borrower or a Guarantor shall be subordinated to the Indebtedness on terms set forth in the Guaranty Agreement.

(g) endorsements of negotiable instruments for collection in the ordinary course of business.

(h) non-recourse Debt secured by Property other than Oil and Gas Properties evaluated by the Lenders for purposes of establishing the Borrowing Base not to exceed $25,000,000 in the aggregate at any one time outstanding.

(i) other Debt not to exceed $15,000,000 in the aggregate at any one time outstanding.

(j) Debt of the Borrower evidenced by the Senior Convertible Notes, together with any and all refinancings thereof, so long as all of same are either unsecured or expressly subordinated to this Agreement and all of same are scheduled to mature after the Maturity Date under this Agreement.

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(k) unsecured senior Debt or subordinated Debt of the Borrower maturing (giving effect to mandatory prepayments) no earlier than at least six months after the Maturity Date under this Agreement; provided that effective immediately upon the issuance of any such unsecured senior Debt or subordinated Debt, the Borrowing Base shall be reduced by an amount equal to twenty-five percent (25%) of the aggregate principal amount of such Debt.

Section 9.03 Liens. Neither the Borrower nor any Material Subsidiary will create, incur, assume or permit to exist any Lien on any of its Properties (now owned or hereafter acquired), except:

(a) Liens securing the payment of any Indebtedness.

(b) Excepted Liens.

(d) Liens securing any Permitted Refinancing Debt provided that any such Permitted Refinancing Debt is not secured by any additional or different Property not securing the Refinanced Debt.

(e) Liens on Property securing non-recourse Debt permitted by Section 9.02(h).

Section 9.04 Dividends, Distributions and Redemptions. The Borrower will not, and will not permit any of its Subsidiaries to, declare or make, or agree to pay or make, directly or indirectly, any Restricted Payment, return any capital to its stockholders or make any distribution of its Property to its Equity Interest holders, except (a) the Borrower may declare and pay dividends with respect to its Equity Interests payable solely in additional shares of its common stock (other than Disqualified Capital Stock), (b) so long as no Event of Default shall have occurred which is continuing, the Borrower may declare and pay annual cash dividends not to exceed $0.25 per common share on an annual basis, (c) Subsidiaries may declare and pay dividends ratably with respect to their Equity Interests, (d) the Borrower may make Restricted Payments pursuant to and in accordance with restricted stock plans, stock option plans or other benefit plans for management or employees of the Borrower and its Subsidiaries and (e) the Borrower may make interest payments and principal payments on any and all issued and sold Senior Convertible Notes and deliver cash, stock, or any combination thereof upon payment, settlement upon conversion (whether a general or a net share settlement), or redemption of any and all issued and sold Senior Convertible Notes so long as (i) all such cash payments, settlements upon conversions, and redemptions are in accordance with the terms of the Senior Convertible Notes indenture, (ii) no Default shall exist or be occasioned by such payments, settlements upon conversions, or redemptions, and (iii) with respect to any such cash redemptions of such Senior Convertible Notes on the put date occurring on April 1, 2012, after giving effect to such cash redemptions (x) the availability under this Agreement shall be no less than the lesser of (1) 10% of the Borrowing Base or (2) $75,000,000 and (y) both before and after giving effect to such cash redemptions, the Borrower’s ratio of Total Debt to EBITDA for the four fiscal quarters ending on the last day of the fiscal quarter immediately preceding the date

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of determination for which financial statements are available is not greater than 3.25 to 1.0. The calculation of Total Debt to EBITDA under Section 9.04(e) shall be made in accordance with the provisions of Section 9.01(a).

Section 9.05 Investments, Loans and Advances. Neither the Borrower nor any Material Subsidiary will make or permit to remain outstanding any Investments in or to any Person, except that the foregoing restriction shall not apply to:

(a) Investments reflected in the Financial Statements or which are disclosed to the Lenders in Schedule 9.05(a).

(b) accounts receivable arising in the ordinary course of business.

(c) direct obligations of the United States or any agency thereof, or obligations guaranteed by the United States or any agency thereof, in each case maturing within one year from the date of creation thereof.

(d) commercial paper maturing within one year from the date of creation thereof rated in the highest grade by S&P or Moody’s.

(e) deposits maturing within one year from the date of creation thereof with, including certificates of deposit issued by, any Lender or any office located in the United States of any other bank or trust company which is organized under the laws of the United States or any state thereof, has capital, surplus and undivided profits aggregating at least $100,000,000 (as of the date of such bank or trust company’s most recent financial reports) and has a short term deposit rating of no lower than A2 or P2, as such rating is set forth from time to time, by S&P or Moody’s, respectively or, in the case of any Foreign Subsidiary, a bank organized in a jurisdiction in which the Foreign Subsidiary conducts operations having assets in excess of $500,000,000 (or its equivalent in another currency).

(f) deposits in money market funds investing exclusively in Investments described in Section 9.05(c), Section 9.05(d) or Section 9.05(e).

(g) Investments (i) made by the Borrower in or to the Guarantors, and (ii) made by a Guarantor in or to the Borrower or any other Guarantor.

(h) subject to the limits in Section 9.07, Investments (including, without limitation, capital contributions) in general or limited partnerships or other types of entities (each a “venture”) entered into by the Borrower or a Material Subsidiary with others in the ordinary course of business; provided that (i) any such venture is engaged exclusively in oil and gas exploration, development, production, processing and related activities, including transportation, except for existing Investments described or referred to on Schedule 9.05(h) and Investments permitted by Section 9.05(i), (ii) the interest in such venture is acquired in the ordinary course of business and on fair and reasonable terms and (iii) such venture interests acquired and capital contributions made (valued as of the date such interest was acquired or the contribution made) do not exceed, in the aggregate at any time outstanding an amount equal to $75,000,000.

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(i) subject to the limits in Section 9.07, additional Investments (including, without limitation, capital contributions) in the ventures described or referred to on Schedule 9.05(h) and new Investments (including, without limitation, capital contributions) in ventures entered into by the Borrower or a Material Subsidiary with others in the ordinary course of business; provided that (i) any such venture is not engaged exclusively in oil and gas exploration, development, production, processing and related activities, including transportation, (ii) the interest in such venture is acquired in the ordinary course of business and on fair and reasonable terms and (iii) such venture interests acquired and capital contributions made (valued as of the date such interest was acquired or the contribution made) do not exceed, in the aggregate at any time outstanding an amount equal to $20,000,000.

(j) subject to the limits in Section 9.07, Investments in direct ownership interests in additional Oil and Gas Properties and gas gathering systems related thereto or related to farm-out, farm-in, joint operating, joint venture or area of mutual interest agreements, gathering systems, pipelines or other similar arrangements which are usual and customary in the oil and gas exploration and production business located within the geographic boundaries of the United States of America.

(k) so long as no Event of Default shall have occurred which is continuing, from and after the date hereof, the Borrower may make repurchases of its stock; provided, however, during any time the Borrower’s ratio of Total Debt to consolidated tangible net worth is greater than 2.50 to 1.00, the aggregate amount paid by the Borrower in connection with such repurchases shall not exceed $50,000,000.

Section 9.06 Designation of Material Subsidiaries. Unless designated as a Non-Material Subsidiary on Schedule 7.15 as of the date hereof or thereafter, assuming compliance with Section 9.15, any Person that becomes a Subsidiary of the Borrower or any of its Material Subsidiaries shall be classified as a Material Subsidiary.

Section 9.07 Nature of Business; International Operations. Neither the Borrower nor any Material Subsidiary will allow any material change to be made in the character of its business as an independent oil and gas exploration and production company. From and after the date hereof, the Borrower and its Subsidiaries will not acquire or make any other expenditure (whether such expenditure is capital, operating or otherwise) in or related to, any Oil and Gas Properties not located within the geographical boundaries of the United States or Canada in excess of $10,000,000 in the aggregate.

Section 9.08 Proceeds of Notes. The Borrower will not permit the proceeds of the Notes to be used for any purpose other than those permitted by Section 7.22. Neither the Borrower nor any Person acting on behalf of the Borrower has taken or will take any action which might cause any of the Loan Documents to violate Regulations U or X or any other regulation of the Board or to violate Section 7 of the Securities Exchange Act of 1934 or any rule or regulation thereunder, in each case as now in effect or as the same may hereinafter be in effect. If requested by the Administrative Agent, the Borrower will furnish to the Administrative Agent and each Lender a statement to the foregoing effect in conformity with the requirements of FR Form U-1 or such other form referred to in Regulation U or Regulation X of the Board, as the case may be.

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Section 9.09 ERISA Compliance. The Borrower and the Subsidiaries will not at any time:

(a) engage in, or permit any ERISA Affiliate to engage in, any transaction in connection with which the Borrower, a Subsidiary or any ERISA Affiliate could be subjected to either a civil penalty assessed pursuant to subsections (c), (i) or (l) of section 502 of ERISA or a tax imposed by Chapter 43 of Subtitle D of the Code.

(b) terminate, or permit any ERISA Affiliate to terminate, any Plan in a manner, or take any other action with respect to any Plan, which could result in any liability of the Borrower, a Subsidiary or any ERISA Affiliate to the PBGC.

(c) fail to make, or permit any ERISA Affiliate to fail to make, full payment when due of all amounts which, under the provisions of any Plan, agreement relating thereto or applicable law, the Borrower, a Subsidiary or any ERISA Affiliate is required to pay as contributions thereto.

(d) permit to exist, or allow any ERISA Affiliate to permit to exist, any accumulated funding deficiency within the meaning of section 302 of ERISA or section 412 of the Code, whether or not waived, with respect to any Plan.

(e) permit, or allow any ERISA Affiliate to permit, the actuarial present value of the benefit liabilities under any Plan maintained by the Borrower, a Subsidiary or any ERISA Affiliate which is regulated under Title IV of ERISA to exceed the current value of the assets (computed on a plan termination basis in accordance with Title IV of ERISA) of such Plan allocable to such benefit liabilities. The term “actuarial present value of the benefit liabilities” shall have the meaning specified in section 4041 of ERISA.

(f) contribute to or assume an obligation to contribute to, or permit any ERISA Affiliate to contribute to or assume an obligation to contribute to, any Multiemployer Plan.

(g) acquire, or permit any ERISA Affiliate to acquire, an interest in any Person that causes such Person to become an ERISA Affiliate with respect to the Borrower or a Subsidiary or with respect to any ERISA Affiliate of the Borrower or a Subsidiary if such Person sponsors, maintains or contributes to, or at any time in the six-year period preceding such acquisition has sponsored, maintained, or contributed to, (1) any Multiemployer Plan, or (2) any other Plan that is subject to Title IV of ERISA under which the actuarial present value of the benefit liabilities under such Plan exceeds the current value of the assets (computed on a plan termination basis in accordance with Title IV of ERISA) of such Plan allocable to such benefit liabilities.

(h) incur, or permit any ERISA Affiliate to incur, a liability to or on account of a Plan under sections 515, 4062, 4063, 4064, 4201 or 4204 of ERISA.

(i) contribute to or assume an obligation to contribute to, or permit any ERISA Affiliate to contribute to or assume an obligation to contribute to, any employee welfare benefit plan, as defined in section 3(1) of ERISA, including, without limitation, any such plan

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maintained to provide benefits to former employees of such entities, that may not be terminated by such entities in their sole discretion at any time without any material liability.

(j) amend, or permit any ERISA Affiliate to amend, a Plan resulting in an increase in current liability such that the Borrower, a Subsidiary or any ERISA Affiliate is required to provide security to such Plan under section 401(a)(29) of the Code.

Section 9.10 Sale or Discount of Receivables. Except for receivables obtained by the Borrower or any Material Subsidiary out of the ordinary course of business or the settlement of joint interest billing accounts in the ordinary course of business or discounts granted to settle collection of accounts receivable or the sale of defaulted accounts arising in the ordinary course of business in connection with the compromise or collection thereof and not in connection with any financing transaction, neither the Borrower nor any Material Subsidiary will discount or sell (with or without recourse) any of its notes receivable or accounts receivable.

Section 9.11 Mergers, Etc. Neither the Borrower nor any Material Subsidiary will merge into or with or consolidate with any other Person, or sell, lease or otherwise dispose of (whether in one transaction or in a series of transactions) all or substantially all of its Property to any other Person (any such transaction, a “consolidation”); provided that

(a) the Borrower or any Material Subsidiary may participate in a consolidation with any other Person; provided that (i) no Default is continuing, (ii) any such consolidation would not cause a Default hereunder, (iii) if the Borrower consolidates with any Person, the Borrower shall be the surviving Person, (iv) if any Material Subsidiary consolidates with any Person (other than the Borrower or a Material Subsidiary) and such Material Subsidiary is not the surviving Person, such surviving Person shall expressly assume in writing (in form and substance satisfactory to the Administrative Agent) all obligations of such Material Subsidiary under the Loan Documents and (v) the Borrowing Base will be redetermined using the procedures for an Interim Redetermination in accordance with Section 2.07; and

(b) any Material Subsidiary may participate in a consolidation with the Borrower (provided that the Borrower shall be the continuing or surviving corporation) or any other Material Subsidiary and if one of such Material Subsidiaries is a Wholly-Owned Subsidiary, then the surviving Person shall be a Wholly-Owned Subsidiary.

Section 9.12 Sale of Properties. The Borrower will not, and will not permit any Material Subsidiary to, sell, assign, farm-out, convey or otherwise transfer any Property except for (a) the sale of Hydrocarbons in the ordinary course of business; (b) farmouts of undeveloped acreage and assignments in connection with such farmouts; (c) the sale or transfer of equipment that is no longer necessary for the business of the Borrower or such Material Subsidiary or is replaced by equipment of at least comparable value and use; (d) the sale, transfer or other disposition of Equity Interests in non-Material Subsidiaries; (e) sales or other dispositions of Oil and Gas Properties or any interest therein or Material Subsidiaries owning Oil and Gas Properties; provided that (i) if such sales or other dispositions of Oil and Gas Properties or Material Subsidiaries owning Oil and Gas Properties included in the most recently delivered Reserve Report during any period between two successive Scheduled Redetermination Dates has a fair market value in excess of seven and a half percent (7.5%) of the Borrowing Base,

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individually or in the aggregate, the Borrowing Base shall be reduced, effective immediately upon such sale or disposition, by an amount equal to the value, if any, assigned such Property in the most recently delivered Reserve Report and (ii) if any such sale or other disposition is of a Material Subsidiary owning Oil and Gas Properties, such sale or other disposition shall include all the Equity Interests of such Material Subsidiary; and (f) sales and other dispositions of Properties (other than Oil and Gas Properties) not regulated by Sections 9.12(a) to (e) having a fair market value not to exceed $30,000,000 during any 12-month period.

Section 9.13 Environmental Matters. Neither the Borrower nor any Material Subsidiary will cause or permit any of its Property to be in violation of, or do anything or permit anything to be done which will subject any such Property to any Remedial Work under any Environmental Laws, assuming disclosure to the applicable Governmental Authority of all relevant facts, conditions and circumstances, if any, pertaining to such Property where such violations or remedial obligations could reasonably be expected to have a Material Adverse Effect.

Section 9.14 Transactions with Affiliates. Neither the Borrower nor any Material Subsidiary will enter into any transaction, including, without limitation, any purchase, sale, lease or exchange of Property or the rendering of any service, with any Affiliate (other than the Guarantors and Wholly-Owned Subsidiaries of the Borrower) unless such transactions are otherwise permitted under this Agreement and are upon fair and reasonable terms no less favorable to it than it would obtain in a comparable arm’s length transaction with a Person not an Affiliate.

Section 9.15 Subsidiaries. The Borrower shall not, and shall not permit any Material Subsidiary to, create or acquire any additional Material Subsidiary or redesignate a Subsidiary as a Material Subsidiary unless the Borrower gives written notice to the Administrative Agent of such creation or acquisition and complies with Section 8.14(b). The Borrower shall not, and shall not permit any Material Subsidiary to, sell, assign or otherwise dispose of any Equity Interests in any Material Subsidiary except in compliance with Section 9.12(e).

Section 9.16 Negative Pledge Agreements; Dividend Restrictions. Neither the Borrower nor any Material Subsidiary will create, incur, assume or suffer to exist any contract, agreement or understanding (other than this Agreement, the Security Instruments or Capital Leases creating Liens permitted by Section 9.03(c)) which in any way prohibits or restricts the granting, conveying, creation or imposition of any Lien on any of its Property in favor of the Administrative Agent and the Lenders or restricts any Material Subsidiary from paying dividends or making distributions to the Borrower or any Guarantor, or which requires the consent of or notice to other Persons in connection therewith.

Section 9.17 Gas Imbalances, Take-or-Pay or Other Prepayments. The Borrower will not allow (on a net basis) gas imbalances, take-or-pay or other prepayments with respect to the Oil and Gas Properties of the Borrower or any Material Subsidiary that would require the Borrower or such Material Subsidiary to deliver Hydrocarbons at some future time without then or thereafter receiving full payment therefor to exceed three million mcf of gas (on an mcfe equivalent basis) in the aggregate.

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Section 9.18 Swap Agreements. Neither the Borrower nor any Material Subsidiary will enter into any Swap Agreements with any Person other than (a) Swap Agreements in respect of commodities (i) with an Approved Counterparty and (ii) the notional volumes for which (when aggregated with other commodity Swap Agreements then in effect) do not exceed, as of the date such Swap Agreement is executed, 75% of the reasonably anticipated projected production from proved, developed, producing Oil and Gas Properties for each month during the period during which such Swap Agreement is in effect, (b) Swap Agreements effectively converting interest rates from floating to fixed (i) with an Approved Counterparty and (ii) the notional amounts of which (when aggregated with other interest rate Swap Agreements then in effect effectively converting interest rates from floating to fixed) do not exceed 100% of principal amount of the Borrower’s floating rate Debt in respect of borrowed money, (c) Swap Agreements effectively converting interest rates from fixed to floating (i) with an Approved Counterparty and (ii) the notional amounts of which (when aggregated with other interest rate Swap Agreements then in effect effectively converting interest rates from fixed to floating) do not exceed 100% of principal amount of the Borrower's fixed rate Debt in respect of borrowed money (including, without limitation, the Borrower's Senior Convertible Notes), and (d) Swap Agreements in respect of currencies (i) with an Approved Counterparty, (ii) such transactions are to hedge actual or expected fluctuations in currencies and are not for speculative purposes and (iii) such transactions do not involve termination or expiry dates longer than six (6) months after the trade date in respect thereof. In no event shall any Swap Agreement contain any requirement, agreement or covenant for the Borrower or any Material Subsidiary to post collateral or margin to secure their obligations under such Swap Agreement or to cover market exposures other than usual and customary requirements to deliver letters of credit or post cash collateral.

Section 9.19 Preservation of Material Agreements. Except for acts which could not reasonably be expected to have a Material Adverse Effect or which are taken in the ordinary course of business, neither the Borrower nor any Material Subsidiary, as the case may be, will agree to any change, modification or amendment to or waiver of any of the terms or provisions of any of the Material Agreements. Neither the Borrower nor any Material Subsidiary, as the case may be, will take any action or permit any action to be taken by others which will release any Person from its obligations or liabilities under any of the Material Agreements.

Section 9.20 Release of Liens. During any period between two successive Scheduled Redetermination Dates, the Borrower shall be entitled to cause Mortgaged Properties having an aggregate fair market value not to exceed seven and a half percent (7.5%) of the Borrowing Base, individually or in the aggregate, to be released from the Liens created by and existing under the Security Instruments without the consent of the Lenders; provided that (a) no Event of Default shall have occurred which is continuing, (b) following any such release, the total value of the remaining Mortgaged Property shall be sufficient to support the Aggregate Commitment in the sole opinion of the Administrative Agent, and (c) following any such release, the Administrative Agent shall adjust the then current Borrowing Base to take into account the release of such Mortgaged Properties and any mandatory prepayment required as a result thereof shall be made at the time of such release.

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ARTICLE X

Events of Default; Remedies

Section 10.01 Events of Default. One or more of the following events shall constitute an “Event of Default”:

(a) the Borrower shall fail to pay any principal of any Loan or any reimbursement obligation in respect of any LC Disbursement when and as the same shall become due and payable, whether at the due date thereof or at a date fixed for prepayment thereof, by acceleration or otherwise.

(b) the Borrower shall fail to pay any interest on any Loan or any fee or any other amount (other than an amount referred to in Section 10.01(a)) payable under any Loan Document, when and as the same shall become due and payable, and such failure shall continue unremedied for a period of three Business Days.

(c) any representation or warranty made or deemed made by or on behalf of the Borrower or any Material Subsidiary in or in connection with any Loan Document or any amendment or modification of any Loan Document or waiver under such Loan Document, or in any report, certificate, financial statement or other document furnished pursuant to or in connection with any Loan Document or any amendment or modification thereof or waiver thereunder, shall prove to have been incorrect in any respect material to the Borrower’s creditworthiness or to the rights or interests of the Lenders when made or deemed made.

(d) the Borrower or any Material Subsidiary shall fail to observe or perform any covenant, condition or agreement contained in Section 8.02, Section 8.03 or in ARTICLE IX.

(e) the Borrower or any Material Subsidiary shall fail to observe or perform any covenant, condition or agreement contained in this Agreement (other than those specified in Section 10.01(a), Section 10.01(b) or Section 10.01(d)) or any other Loan Document, and such failure shall continue unremedied for a period of 30 days after the earlier to occur of (A) notice thereof from the Administrative Agent to the Borrower (which notice will be given at the request of any Lender) or (B) a Responsible Officer of the Borrower or such Material Subsidiary otherwise becoming aware of such default.

(f) the Borrower or any Material Subsidiary shall fail to make any payment (whether of principal or interest and regardless of amount) in respect of any Material Indebtedness, when and as the same shall become due and payable (subject to applicable grace periods), unless such payment is being contested in good faith and by proper proceedings and against which adequate reserves are being maintained.

(g) any event or condition occurs that results in any Material Indebtedness becoming due prior to its scheduled maturity or that enables or permits (with or without the giving of notice, the lapse of time or both) the holder or holders of any Material Indebtedness or any trustee or agent on its or their behalf to cause any Material Indebtedness to become due, or to require the Redemption thereof or any offer to Redeem to be made in respect thereof, prior to its scheduled maturity or require the Borrower or any Material Subsidiary to make an offer in

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respect thereof; provided, however, early termination of a Swap Agreement (that is Material Indebtedness) due solely to an ISDA “Termination Event” is not an Event of Default hereunder.

(h) an involuntary proceeding shall be commenced or an involuntary petition shall be filed seeking (i) liquidation, reorganization or other relief in respect of the Borrower or any Material Subsidiary or its debts, or of a substantial part of its assets, under any Debtor Relief Laws or (ii) the appointment of a receiver, trustee, custodian, sequestrator, conservator or similar official for the Borrower or any Material Subsidiary or for a substantial part of its assets, and, in any such case, such proceeding or petition shall continue undismissed for 30 days or an order or decree approving or ordering any of the foregoing shall be entered.

(i) the Borrower or any Material Subsidiary shall (i) voluntarily commence any proceeding or file any petition seeking liquidation, reorganization or other relief under any Debtor Relief Laws, (ii) consent to the institution of, or fail to contest in a timely and appropriate manner, any proceeding or petition described in Section 10.01(h), (iii) apply for or consent to the appointment of a receiver, trustee, custodian, sequestrator, conservator or similar official for the Borrower or any Material Subsidiary or for a substantial part of its assets, (iv) file an answer admitting the material allegations of a petition filed against it in any such proceeding, (v) make a general assignment for the benefit of creditors or (vi) take any action for the purpose of effecting any of the foregoing.

(j) the Borrower or any Material Subsidiary shall become unable, admit in writing its inability or fail generally to pay its debts as they become due.

(k) one or more judgments for the payment of money in an aggregate amount in excess of $15,000,000 (to the extent not covered by independent third party insurance provided by insurers of the highest claims paying rating or financial strength as to which the insurer does not dispute coverage and is not subject to an insolvency proceeding) shall be rendered against the Borrower, any Material Subsidiary or any combination thereof and the same shall remain undischarged for a period of 30 consecutive days and for which execution shall not be effectively stayed, or any action shall be legally taken by a judgment creditor to attach or levy upon any assets of the Borrower or any Material Subsidiary to enforce any such judgment.

(l) the Loan Documents after delivery thereof shall for any reason, except to the extent permitted by the terms thereof, cease to be in full force and effect and valid, binding and enforceable in accordance with their terms against the Borrower or a Guarantor party thereto or shall be repudiated by any of them, or cease to create a valid and perfected Lien of the priority required thereby on any of the collateral purported to be covered thereby, except to the extent permitted by the terms of this Agreement, or the Borrower or any Guarantor or any of their Affiliates shall so state in writing.

(m) an ERISA Event shall have occurred that, in the opinion of the Majority Lenders, when taken together with all other ERISA Events that have occurred, could reasonably be expected to result in a Material Adverse Effect.

(n) a Change in Control shall occur.

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(o) the Borrower shall fail to pay any mandatory prepayment or provide additional collateral as provided in Section 3.04(c)

Section 10.02 Remedies.

(a) In the case of an Event of Default other than one described in Section 10.01(h), Section 10.01(i) or Section 10.01(j), at any time thereafter during the continuance of such Event of Default, the Administrative Agent may, and at the request of the Majority Lenders, shall, by notice to the Borrower, take either or both of the following actions, at the same or different times: (i) terminate the Commitments, and thereupon the Commitments shall terminate immediately, and (ii) declare the Notes and the Loans then outstanding to be due and payable in whole (or in part, in which case any principal not so declared to be due and payable may thereafter be declared to be due and payable), and thereupon the principal of the Loans so declared to be due and payable, together with accrued interest thereon and all fees and other obligations of the Borrower and the Guarantors accrued hereunder and under the Notes and the other Loan Documents (including, without limitation, the payment of cash collateral to secure the LC Exposure as provided in Section 2.08(k)), shall become due and payable immediately, without presentment, demand, protest, notice of intent to accelerate, notice of acceleration or other notice of any kind, all of which are hereby waived by the Borrower and each Guarantor; and in case of an Event of Default described in Section 10.01(h), Section 10.01(i) or Section 10.01(j), the Commitments shall automatically terminate and the Notes and the principal of the Loans then outstanding, together with accrued interest thereon and all fees and the other obligations of the Borrower and the Guarantors accrued hereunder and under the Notes and the other Loan Documents (including, without limitation, the payment of cash collateral to secure the LC Exposure as provided in Section 2.08(k)), shall automatically become due and payable, without presentment, demand, protest or other notice of any kind, all of which are hereby waived by the Borrower and each Guarantor.

(b) In the case of the occurrence of an Event of Default, the Administrative Agent and the Lenders will have all other rights and remedies available at law and equity.

(c) All collateral, including, without limitation, proceeds realized from the liquidation or other disposition of collateral or otherwise received after maturity of the Notes, whether by acceleration or otherwise, shall be applied: first, to reimbursement of expenses and indemnities provided for in this Agreement and the Security Instruments; second, to accrued interest on the Notes; third, to fees; fourth, pari passu amongst (i) Indebtedness owing to a Lender or an Affiliate of a Lender under any Swap Agreement permitted hereby and (ii) principal outstanding on the Notes (to be shared pro rata amongst the Lenders); fifth, to any other Indebtedness; sixth, to serve as cash collateral to be held by the Administrative Agent to secure the LC Exposure; and any excess shall be paid to the Borrower or as otherwise required by any Governmental Requirement.

ARTICLE XI

The Administrative Agent

Section 11.01 Appointment; Powers. Each of the Lenders and the Issuing Bank hereby irrevocably appoints the Administrative

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Agent as its agent and authorizes the Administrative Agent to take such actions on its behalf and to exercise such powers as are delegated to the Administrative Agent by the terms hereof and the other Loan Documents, together with such actions and powers as are reasonably incidental thereto.

Section 11.02 Duties and Obligations of Administrative Agent. The Administrative Agent shall not have any duties or obligations except those expressly set forth in the Loan Documents. Without limiting the generality of the foregoing, (a) the Administrative Agent shall not be subject to any fiduciary or other implied duties, regardless of whether a Default has occurred and is continuing, (b) the Administrative Agent shall not have any duty to take any discretionary action or exercise any discretionary powers, except as provided in Section 11.03, and (c) except as expressly set forth herein, the Administrative Agent shall not have any duty to disclose, and shall not be liable for the failure to disclose, any information relating to the Borrower or any of its Subsidiaries that is communicated to or obtained by the bank serving as Administrative Agent or any of its Affiliates in any capacity. The Administrative Agent shall be deemed not to have knowledge of any Default unless and until written notice thereof is given to the Administrative Agent by the Borrower or a Lender, and shall not be responsible for or have any duty to ascertain or inquire into (i) any statement, warranty or representation made in or in connection with this Agreement or any other Loan Document, (ii) the contents of any certificate, report or other document delivered hereunder or under any other Loan Document or in connection herewith or therewith, (iii) the performance or observance of any of the covenants, agreements or other terms or conditions set forth herein or in any other Loan Document, (iv) the validity, enforceability, effectiveness or genuineness of this Agreement, any other Loan Document or any other agreement, instrument or document, (v) the satisfaction of any condition set forth in ARTICLE VI or elsewhere herein, other than to confirm receipt of items expressly required to be delivered to the Administrative Agent, (vi) the existence, value, perfection or priority of any collateral security or the financial or other condition of the Borrower and its Subsidiaries or any other obligor or guarantor, or (vii) any failure by the Borrower or any other Person (other than itself) to perform any of its obligations hereunder or under any other Loan Document or the performance or observance of any covenants, agreements or other terms or conditions set forth herein or therein.

Section 11.03 Action by Administrative Agent. The Administrative Agent shall not have any duty to take any discretionary action or exercise any discretionary powers, except discretionary rights and powers expressly contemplated hereby that the Administrative Agent is required to exercise in writing as directed by the Majority Lenders (or such other number or percentage of the Lenders as shall be necessary under the circumstances as provided in Section 12.02) and in all cases the Administrative Agent shall be fully justified in failing or refusing to act hereunder or under any other Loan Documents unless it shall (a) receive written instructions from the Majority Lenders or the Lenders, as applicable, (or such other number or percentage of the Lenders as shall be necessary under the circumstances as provided in Section 12.02) specifying the action to be taken and (b) be indemnified to its satisfaction by the Lenders against any and all liability and expenses which may be incurred by it by reason of taking or continuing to take any such action. The instructions as aforesaid and any action taken or failure to act pursuant thereto by the Administrative Agent shall be binding on all of the Lenders. If a Default has occurred and is continuing, then the Administrative Agent shall take such action with respect to such Default as shall be directed by the requisite Lenders in the written instructions (with indemnities) described in this Section 11.03, provided that, unless and until the Administrative

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Agent shall have received such directions, the Administrative Agent may (but shall not be obligated to) take such action, or refrain from taking such action, with respect to such Default as it shall deem advisable in the best interests of the Lenders. In no event, however, shall the Administrative Agent be required to take any action which exposes the Administrative Agent to personal liability or which is contrary to this Agreement, the Loan Documents or applicable law. The Administrative Agent shall not be liable for any action taken or not taken by it with the consent or at the request of the Majority Lenders or the Lenders (or such other number or percentage of the Lenders as shall be necessary under the circumstances as provided in Section 12.02), and otherwise shall not be liable for any action taken or not taken by it hereunder or under any other Loan Document or under any other document or instrument referred to or provided for herein or therein or in connection herewith or therewith INCLUDING ITS OWN ORDINARY NEGLIGENCE, except for its own gross negligence or willful misconduct.

Section 11.04 Reliance by Administrative Agent. The Administrative Agent shall be entitled to rely upon, and shall not incur any liability for relying upon, any notice, request, certificate, consent, statement, instrument, document or other writing believed by it to be genuine and to have been signed or sent by the proper Person. The Administrative Agent also may rely upon any statement made to it orally or by telephone and believed by it to be made by the proper Person, and shall not incur any liability for relying thereon and each of the Borrower, the Lenders and the Issuing Bank hereby waives the right to dispute the Administrative Agent’s record of such statement, except in the case of gross negligence or willful misconduct by the Administrative Agent. The Administrative Agent may consult with legal counsel (who may be counsel for the Borrower), independent accountants and other experts selected by it, and shall not be liable for any action taken or not taken by it in accordance with the advice of any such counsel, accountants or experts. The Administrative Agent may deem and treat the payee of any Note as the holder thereof for all purposes hereof unless and until a written notice of the assignment or transfer thereof permitted hereunder shall have been filed with the Administrative Agent.

Section 11.05 Subagents. The Administrative Agent may perform any and all its duties and exercise its rights and powers by or through any one or more sub-agents appointed by the Administrative Agent. The Administrative Agent and any such sub-agent may perform any and all its duties and exercise its rights and powers through their respective Related Parties. The exculpatory provisions of the preceding Sections of this ARTICLE XI shall apply to any such sub-agent and to the Related Parties of the Administrative Agent and any such sub-agent, and shall apply to their respective activities in connection with the syndication of the credit facilities provided for herein as well as activities as Administrative Agent.

Section 11.06 Resignation or Removal of Administrative Agent. Subject to the appointment and acceptance of a successor Administrative Agent as provided in this Section 11.06, the Administrative Agent may resign at any time by notifying the Lenders, the Issuing Bank and the Borrower, and the Administrative Agent may be removed at any time with or without cause by the Majority Lenders. Upon any such resignation or removal, the Majority Lenders shall have the right, in consultation with the Borrower, to appoint a successor; provided, however, that, at Wachovia’s election and in its sole discretion, upon the resignation of Wachovia as Administrative Agent, Wachovia shall have the right to appoint any of its Affiliates as successor Administrative Agent. If no successor shall have been so appointed by the Majority

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Lenders (where applicable) and shall have accepted such appointment within 30 days after the retiring Administrative Agent gives notice of its resignation or removal of the retiring Administrative Agent, then the retiring Administrative Agent may, on behalf of the Lenders and the Issuing Bank, appoint a successor Administrative Agent which shall be a bank with an office in New York, New York or San Francisco, California, or an Affiliate of any such bank. Upon the acceptance of its appointment as Administrative Agent hereunder by a successor, such successor shall succeed to and become vested with all the rights, powers, privileges and duties of the retiring Administrative Agent, and the retiring Administrative Agent shall be discharged from its duties and obligations hereunder. The fees payable by the Borrower to a successor Administrative Agent shall be the same as those payable to its predecessor unless otherwise agreed between the Borrower and such successor. After the Administrative Agent’s resignation hereunder, the provisions of this ARTICLE XI and Section 12.03 shall continue in effect for the benefit of such retiring Administrative Agent, its sub-agents and their respective Related Parties in respect of any actions taken or omitted to be taken by any of them while it was acting as Administrative Agent. If the Administrative Agent is an Impacted Lender due to the circumstances described in clause (v) of the definition of Impacted Lender, the Majority Lenders shall have the right to appoint a successor Administrative Agent which shall be a commercial bank or trust company that is, if no Event of Default exists, reasonably acceptable to the Borrower. If no successor Administrative Agent has been so appointed and shall have accepted such appointment by the 20th Business Day after the date the Administrative Agent became an Impacted Lender due to the circumstances described in clause (v) of the definition of Impacted Lender, the Administrative Agent shall be deemed to have been replaced and the Lenders shall thereafter perform all the duties of the Administrative Agent hereunder and under any other Loan Document until such time, if any, as the Majority Lenders appoint a successor Administrative Agent as provided above. After the Administrative Agent is replaced in accordance with this Section 11.06, the provisions of this Article XI and Section 12.03 shall continue in effect for the benefit of such replaced Administrative Agent, its sub agents and their respective Related Parties in respect of any actions taken or omitted to be taken by any of them while such replaced Administrative Agent was acting as Administrative Agent.

Section 11.07 Administrative Agent as Lenders. Wachovia, serving as Administrative Agent hereunder shall have the same rights and powers in its capacity as a Lender as any other Lender and may exercise the same as though it were not Administrative Agent, and such bank and its Affiliates may accept deposits from, lend money to and generally engage in any kind of business with the Borrower or any Subsidiary or other Affiliate thereof as if it were not Administrative Agent hereunder.

Section 11.08 No Reliance. Each Lender acknowledges that it has, independently and without reliance upon the Administrative Agent or any other Lender and based on such documents and information as it has deemed appropriate, made its own credit analysis and decision to enter into this Agreement and each other Loan Document to which it is a party. Each Lender also acknowledges that it will, independently and without reliance upon the Administrative Agent or any other Lender and based on such documents and information as it shall from time to time deem appropriate, continue to make its own decisions in taking or not taking action under or based upon this Agreement, any other Loan Document, any related agreement or any document furnished hereunder or thereunder. The Administrative Agent shall not be required to keep itself informed as to the performance or observance by the Borrower or

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any of its Subsidiaries of this Agreement, the Loan Documents or any other document referred to or provided for herein or to inspect the Properties or books of the Borrower or its Subsidiaries. Except for notices, reports and other documents and information expressly required to be furnished to the Lenders by the Administrative Agent hereunder or Arranger shall have any duty or responsibility to provide any Lender with any credit or other information concerning the affairs, financial condition or business of the Borrower (or any of its Affiliates) which may come into the possession of the Administrative Agent or any of its Affiliates. In this regard, each Lender acknowledges that Vinson & Elkins L.L.P. is acting in this transaction as special counsel to the Administrative Agent only, except to the extent otherwise expressly stated in any legal opinion or any Loan Document. Each other party hereto will consult with its own legal counsel to the extent that it deems necessary in connection with the Loan Documents and the matters contemplated therein.

Section 11.09 Authority of Administrative Agent to Release Collateral and Liens. Each Lender and the Issuing Bank hereby authorizes the Administrative Agent to release any collateral that is permitted to be sold or released pursuant to the terms of the Loan Documents. Each Lender and the Issuing Bank hereby authorizes the Administrative Agent to execute and deliver to the Borrower, at the Borrower’s sole cost and expense, any and all releases of Liens, termination statements, assignments or other documents reasonably requested by the Borrower in connection with any sale or other disposition of Property to the extent such sale or other disposition is permitted by the terms of Section 9.12 or is otherwise authorized by the terms of the Loan Documents.

Section 11.10 Syndication Agent and Co-Documentation Agents. The Lenders identified in this Agreement as Syndication Agent and as Co-Documentation Agents shall not have any right, power, obligation, liability, responsibility or duty under this Agreement other than those applicable to all Lenders as such. Without limiting the foregoing, the Syndication Agent and the Co-Documentation Agents shall not have or be deemed to have a fiduciary relationship with any Lender.

Section 11.11 Administrative Agent May File Proofs of Claim. In case of the pendency of any receivership, insolvency, liquidation, bankruptcy, reorganization, arrangement, adjustment, composition or other judicial proceeding relative to the Borrower or any of its Subsidiaries, the Administrative Agent (irrespective of whether the principal of any Loan shall then be due and payable as herein expressed or by declaration or otherwise and irrespective of whether the Administrative Agent shall have made any demand on the Borrower) shall be entitled and empowered, by intervention in such proceeding or otherwise:

(a) to file and prove a claim for the whole amount of the principal and interest owing and unpaid in respect of the Loans and all other Indebtedness that are owing and unpaid and to file such other documents as may be necessary or advisable in order to have the claims of the Lenders and the Administrative Agent (including any claim for the reasonable compensation, expenses, disbursements and advances of the Lenders and the Administrative Agent and their respective agents and counsel and all other amounts due the Lenders and the Administrative Agent under Section 12.03) allowed in such judicial proceeding; and

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(b) to collect and receive any monies or other property payable or deliverable on any such claims and to distribute the same; and any custodian, receiver, assignee, trustee, liquidator, sequestrator or other similar official in any such judicial proceeding is hereby authorized by each Lender to make such payments to the Administrative Agent and, in the event that the Administrative Agent shall consent to the making of such payments directly to the Lenders, to pay to the Administrative Agent any amount due for the reasonable compensation, expenses, disbursements and advances of the Administrative Agent and its agents and counsel, and any other amounts due the Administrative Agent under Section 12.03.

Nothing contained herein shall be deemed to authorize the Administrative Agent to authorize or consent to or accept or adopt on behalf of any Lender any plan of reorganization, arrangement, adjustment or composition affecting the Indebtedness or the rights of any Lender or to authorize the Administrative Agent to vote in respect of the claim of any Lender in any such proceeding.

ARTICLE XII

Miscellaneous

Section 12.01 Notices.

(a) Except in the case of notices and other communications expressly permitted to be given by telephone (and subject to Section 12.01(b)), all notices and other communications provided for herein shall be in writing and shall be delivered by hand or overnight courier service, mailed by certified or registered mail, sent by telecopy or, to the extent permitted in Sections 2.08(b), 2.09(b), 8.01 and 12.01(b), transmitted by electronic communication, as follows:

(i) if to the Borrower, to it at 1776 Lincoln Street, Suite 700, Denver, Colorado 80203, Attention of Matthew J. Purchase (Telecopy No. 303/861-0934) (E-mail Address: mpurchase@stmaryland.com);

(ii) if to the Administrative Agent, to it at 1525 W. WT Harris Blvd., Charlotte, North Carolina 28262, Attention of Syndication Agency Services (Telecopy No. 704/590-3481), with a copy to Wachovia Securities, at 301 South College Street, 15th Floor NC 5562, Charlotte, North Carolina 28288, Attention of Leanne Phillips (Telecopy No. 704/383-6647) (E-mail Address: leanne.phillips@wachovia.com);

(iii) if to the Issuing Bank, to it at 1525 W. WT Harris Blvd., Charlotte, North Carolina 28262, Attention of Syndication Agency Services (Telecopy No. 704/590-3481);

(iv) if to the Swingline Lender, to it at the address set forth in clause (ii) above; or

(v) if to any other Lender, to it at its address (or telecopy number) set forth in its Administrative Questionnaire.

(b) Notices and other communications to the Lenders hereunder may be delivered or furnished by electronic communications pursuant to procedures approved by the Administrative Agent; provided that the foregoing shall not apply to notices pursuant to

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ARTICLE II, ARTICLE III, ARTICLE IV and ARTICLE V unless otherwise agreed by the Administrative Agent and the applicable Lender. The Administrative Agent or the Borrower may, in its discretion, agree to accept notices and other communications to it hereunder by electronic communications pursuant to procedures approved by it; provided that approval of such procedures may be limited to particular notices or communications.

(c) Any party hereto may change its address or telecopy number for notices and other communications hereunder by notice to the other parties hereto. All notices and other communications given to any party hereto in accordance with the provisions of this Agreement shall be deemed to have been given on the date of receipt.

Section 12.02 Waivers; Amendments.

(a) No failure on the part of the Administrative Agent, the Issuing Bank or any Lender to exercise and no delay in exercising, and no course of dealing with respect to, any right, power or privilege, or any abandonment or discontinuance of steps to enforce such right, power or privilege, under any of the Loan Documents shall operate as a waiver thereof, nor shall any single or partial exercise of any right, power or privilege under any of the Loan Documents preclude any other or further exercise thereof or the exercise of any other right, power or privilege. The rights and remedies of the Administrative Agent, the Issuing Bank and the Lenders hereunder and under the other Loan Documents are cumulative and are not exclusive of any rights or remedies that they would otherwise have. No waiver of any provision of this Agreement or any other Loan Document or consent to any departure by the Borrower therefrom shall in any event be effective unless the same shall be permitted by Section 12.02(b), and then such waiver or consent shall be effective only in the specific instance and for the purpose for which given. Without limiting the generality of the foregoing, the making of a Loan or issuance of a Letter of Credit shall not be construed as a waiver of any Default, regardless of whether the Administrative Agent, any Lender or the Issuing Bank may have had notice or knowledge of such Default at the time.

(b) Neither this Agreement nor any provision hereof nor any Security Instrument nor any provision thereof may be waived, amended or modified except pursuant to an agreement or agreements in writing entered into by the Borrower and the Majority Lenders or by the Borrower and the Administrative Agent with the consent of the Majority Lenders; provided that no such agreement shall (i) increase the Commitment of any Lender without the written consent of such Lender, (ii) increase the Borrowing Base or modify Section 2.07, without the written consent of all of the Lenders, or decrease or maintain the Borrowing Base then in effect under Section 2.07, without the written consent of the Supermajority Lenders (other than any Impacted Lender), (iii) reduce the principal amount of any Loan or LC Disbursement or reduce the rate of interest thereon, or reduce any fees payable hereunder, or reduce any other Indebtedness hereunder or under any other Loan Document, without the written consent of each Lender affected thereby, (iv) postpone the scheduled date of payment of the principal amount of any Loan or LC Disbursement, or any interest thereon, or any fees payable hereunder, or any other Indebtedness hereunder or under any other Loan Document, or reduce the amount of, waive or excuse any such payment, or postpone or extend the Termination Date without the written consent of each Lender affected thereby, (v) change Section 4.01(b), Section 4.01(c) or Section 10.02(c) in a manner that would alter the pro rata sharing of payments required thereby,

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without the written consent of each Lender, (vi) change the definition of the term “Material Subsidiary”, without the written consent of each Lender (other than any Impacted Lender), (vii) release any Guarantor (except as set forth in the Guaranty Agreement), release all or substantially all of the collateral, or reduce the percentage set forth in Section 8.14 to less than 80%, without the written consent of each Lender (other than any Impacted Lender), (viii) change any of the provisions of this Section 12.02(b) or the definition of “Majority Lenders” or the definition of “Supermajority Lenders” or any other provision hereof specifying the number or percentage of Lenders required to waive, amend or modify any rights hereunder or under any other Loan Documents or make any determination or grant any consent hereunder or any other Loan Documents, without the written consent of each Lender (other than any Impacted Lender) or (ix) increase the Aggregate Commitment above the Maximum Credit Amount without the written consent of each Lender; provided further that no such agreement shall amend, modify or otherwise affect the rights or duties of the Administrative Agent, the Swingline Lender or the Issuing Bank hereunder or under any other Loan Document without the prior written consent of the Administrative Agent, the Swingline Lender or the Issuing Bank, as the case may be. Notwithstanding the foregoing, any supplement to Schedule 7.15 (Subsidiaries) shall be effective simply by delivering to the Administrative Agent a supplemental schedule clearly marked as such and, upon receipt, the Administrative Agent will promptly deliver a copy thereof to the Lenders. Notwithstanding the foregoing, the Commitment and outstanding Borrowings of any Impacted Lender shall be disregarded for all purposes of any determination of whether the requisite Lenders have taken or may take any action hereunder (including any consent to any amendment or waiver pursuant to this Section 12.02); provided that, except as set forth in Sections 12.02(b)(vi), (vii) and (viii), any waiver, amendment or modification requiring the consent of all Lenders shall require the consent of such Impacted Lender.

Section 12.03 Expenses, Indemnity; Damage Waiver.

(a) The Borrower shall pay (i) all reasonable out-of-pocket expenses incurred by the Administrative Agent and its Affiliates, including, without limitation, the reasonable fees, charges and disbursements of counsel and other outside consultants for the Administrative Agent, the reasonable travel, photocopy, mailing, courier, telephone and other similar expenses, and the cost of environmental audits and surveys and appraisals, in connection with the syndication of the credit facilities provided for herein, the preparation, negotiation, execution, delivery and administration (both before and after the execution hereof and including advice of counsel to the Administrative Agent as to the rights and duties of the Administrative Agent and the Lenders with respect thereto) of this Agreement and the other Loan Documents and any amendments, modifications or waivers of or consents related to the provisions hereof or thereof (whether or not the transactions contemplated hereby or thereby shall be consummated), (ii) all costs, expenses, Taxes, assessments and other charges incurred by the Administrative Agent or any Lender in connection with any filing, registration, recording or perfection of any security interest contemplated by this Agreement or any Security Instrument or any other document referred to therein, (iii) all reasonable out-of-pocket expenses incurred by the Issuing Bank in connection with the issuance, amendment, renewal or extension of any Letter of Credit or any demand for payment thereunder, (iv) all out-of-pocket expenses incurred by the Administrative Agent, the Issuing Bank, the Swingline Lender or any other Lender, including the reasonable fees, charges and disbursements of any counsel for the Administrative Agent, the Issuing Bank, the Swingline Lender or any other Lender, in connection with the enforcement or protection of

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its rights in connection with this Agreement or any other Loan Document, including its rights under this Section 12.03, or in connection with the Loans made or Letters of Credit issued hereunder, including, without limitation, all such out-of-pocket expenses incurred during any workout, restructuring or negotiations in respect of such Loans or Letters of Credit.

(b) THE BORROWER SHALL INDEMNIFY THE ADMINISTRATIVE AGENT, THE ISSUING BANK, THE SWINGLINE LENDER AND EACH OTHER LENDER, AND EACH RELATED PARTY OF ANY OF THE FOREGOING PERSONS (EACH SUCH PERSON BEING CALLED AN “INDEMNITEE”) AGAINST, AND HOLD EACH INDEMNITEE HARMLESS FROM, ANY AND ALL LOSSES, CLAIMS, DAMAGES, LIABILITIES AND RELATED EXPENSES, INCLUDING THE REASONABLE FEES, CHARGES AND DISBURSEMENTS OF ANY COUNSEL FOR ANY INDEMNITEE, INCURRED BY OR ASSERTED AGAINST ANY INDEMNITEE DIRECTLY ARISING OUT OF, DIRECTLY IN CONNECTION WITH, OR DIRECTLY AS A RESULT OF (i) THE EXECUTION OR DELIVERY OF THIS AGREEMENT OR ANY OTHER LOAN DOCUMENT OR ANY AGREEMENT OR INSTRUMENT CONTEMPLATED HEREBY OR THEREBY, THE PERFORMANCE BY THE PARTIES HERETO OR THE PARTIES TO ANY OTHER LOAN DOCUMENT OF THEIR RESPECTIVE OBLIGATIONS HEREUNDER OR THEREUNDER OR THE CONSUMMATION OF THE TRANSACTIONS CONTEMPLATED HEREBY OR BY ANY OTHER LOAN DOCUMENT, (ii) THE FAILURE OF THE BORROWER OR ANY RESTRICTED SUBSIDIARY TO COMPLY WITH THE TERMS OF ANY LOAN DOCUMENT, INCLUDING THIS AGREEMENT, OR WITH ANY GOVERNMENTAL REQUIREMENT, (iii) ANY INACCURACY OF ANY REPRESENTATION OR ANY BREACH OF ANY WARRANTY OR COVENANT OF THE BORROWER OR ANY GUARANTOR SET FORTH IN ANY OF THE LOAN DOCUMENTS OR ANY INSTRUMENTS, DOCUMENTS OR CERTIFICATIONS DELIVERED IN CONNECTION THEREWITH, (iv) ANY LOAN OR LETTER OF CREDIT OR THE USE OF THE PROCEEDS THEREFROM, INCLUDING, WITHOUT LIMITATION, (A) ANY REFUSAL BY THE ISSUING BANK TO HONOR A DEMAND FOR PAYMENT UNDER A LETTER OF CREDIT IF THE DOCUMENTS PRESENTED IN CONNECTION WITH SUCH DEMAND DO NOT STRICTLY COMPLY WITH THE TERMS OF SUCH LETTER OF CREDIT, OR (B) THE PAYMENT OF A DRAWING UNDER ANY LETTER OF CREDIT NOTWITHSTANDING THE NON-COMPLIANCE, NON-DELIVERY OR OTHER IMPROPER PRESENTATION OF THE DOCUMENTS PRESENTED IN CONNECTION THEREWITH, (v) ANY OTHER ASPECT OF THE LOAN DOCUMENTS, (vi) THE OPERATIONS OF THE BUSINESS OF THE BORROWER AND ITS SUBSIDIARIES BY THE BORROWER AND ITS SUBSIDIARIES, (vii) ANY ASSERTION THAT THE LENDERS WERE NOT ENTITLED TO RECEIVE THE PROCEEDS RECEIVED PURSUANT TO THE SECURITY INSTRUMENTS, (viii) ANY ENVIRONMENTAL LAW APPLICABLE TO THE BORROWER OR ANY SUBSIDIARY OR ANY OF THEIR PROPERTIES, INCLUDING WITHOUT LIMITATION, THE PRESENCE, GENERATION, STORAGE, RELEASE, THREATENED RELEASE, USE, TRANSPORT, DISPOSAL, ARRANGEMENT OF DISPOSAL OR TREATMENT OF OIL, OIL AND GAS WASTES, SOLID WASTES OR HAZARDOUS SUBSTANCES ON ANY OF THEIR PROPERTIES, (ix) THE BREACH OR NON-COMPLIANCE BY THE BORROWER OR ANY SUBSIDIARY WITH ANY ENVIRONMENTAL LAW APPLICABLE TO THE BORROWER OR ANY SUBSIDIARY, (x) THE PAST OWNERSHIP BY THE BORROWER OR ANY SUBSIDIARY

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OF ANY OF THEIR PROPERTIES OR PAST ACTIVITY ON ANY OF THEIR PROPERTIES WHICH, THOUGH LAWFUL AND FULLY PERMISSIBLE AT THE TIME, COULD RESULT IN PRESENT LIABILITY, (xi) THE PRESENCE, USE, RELEASE, STORAGE, TREATMENT, DISPOSAL, GENERATION, THREATENED RELEASE, TRANSPORT, ARRANGEMENT FOR TRANSPORT OR ARRANGEMENT FOR DISPOSAL OF OIL, OIL AND GAS WASTES, SOLID WASTES OR HAZARDOUS SUBSTANCES ON OR AT ANY OF THE PROPERTIES OWNED OR OPERATED BY THE BORROWER OR ANY SUBSIDIARY OR ANY ACTUAL OR ALLEGED PRESENCE OR RELEASE OF HAZARDOUS MATERIALS ON OR FROM ANY PROPERTY OWNED OR OPERATED BY THE BORROWER OR ANY OF ITS SUBSIDIARIES, (xii) ANY ENVIRONMENTAL LIABILITY RELATED IN ANY WAY TO THE BORROWER OR ANY OF ITS SUBSIDIARIES, OR (xiii) ANY OTHER ENVIRONMENTAL, HEALTH OR SAFETY CONDITION IN CONNECTION WITH THE LOAN DOCUMENTS, OR (xiv) ANY ACTUAL OR PROSPECTIVE CLAIM, LITIGATION, INVESTIGATION OR PROCEEDING RELATING TO ANY OF THE FOREGOING, WHETHER BASED ON CONTRACT, TORT OR ANY OTHER THEORY AND REGARDLESS OF WHETHER ANY INDEMNITEE IS A PARTY THERETO, AND SUCH INDEMNITY SHALL EXTEND TO EACH INDEMNITEE NOTWITHSTANDING THE SOLE OR CONCURRENT NEGLIGENCE OF EVERY KIND OR CHARACTER WHATSOEVER, WHETHER ACTIVE OR PASSIVE, WHETHER AN AFFIRMATIVE ACT OR AN OMISSION, INCLUDING WITHOUT LIMITATION, ALL TYPES OF NEGLIGENT CONDUCT IDENTIFIED IN THE RESTATEMENT (SECOND) OF TORTS OF ONE OR MORE OF THE INDEMNITEES OR BY REASON OF STRICT LIABILITY IMPOSED WITHOUT FAULT ON ANY ONE OR MORE OF THE INDEMNITEES; PROVIDED THAT SUCH INDEMNITY SHALL NOT, AS TO ANY INDEMNITEE, BE AVAILABLE TO THE EXTENT THAT SUCH LOSSES, CLAIMS, DAMAGES, LIABILITIES OR RELATED EXPENSES (X) ARE DETERMINED BY A COURT OF COMPETENT JURISDICTION BY FINAL AND NONAPPEALABLE JUDGMENT TO HAVE RESULTED FROM THE GROSS NEGLIGENCE OR WILLFUL MISCONDUCT OF SUCH INDEMNITEE OR (Y) RESULT FROM A CLAIM BROUGHT BY THE BORROWER OR ANY GUARANTOR AGAINST AN INDEMNITEE FOR A MATERIAL BREACH IN BAD FAITH OF SUCH INDEMNITEE'S OBLIGATIONS UNDER THIS AGREEMENT, ANY OTHER LOAN DOCUMENT OR ANY AGREEMENT OR INSTRUMENT CONTEMPLATED HEREBY OR THEREBY, IF THE BORROWER OR SUCH GUARANTOR HAS OBTAINED A FINAL AND NONAPPEALABLE JUDGMENT IN ITS FAVOR ON SUCH CLAIM AS DETERMINED BY A COURT OF COMPETENT JURISDICTION.

(c) To the extent that the Borrower fails to pay any amount required to be paid by it to the Administrative Agent, the Swingline Lender or the Issuing Bank under Section 12.03(a) or (b), each Lender severally agrees to pay to the Administrative Agent, the Swingline Lender or the Issuing Bank, as the case may be, such Lender’s Applicable Percentage (determined as of the time that the applicable unreimbursed expense or indemnity payment is sought) of such unpaid amount; provided that the unreimbursed expense or indemnified loss, claim, damage, liability or related expense, as the case may be, was incurred by or asserted against the Administrative Agent, the Swingline Lender or the Issuing Bank in its capacity as such.

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(d) To the extent permitted by applicable law, the Borrower shall not assert, and hereby waives, any claim against any Indemnitee, on any theory of liability, for special, indirect, consequential or punitive damages (as opposed to direct or actual damages) arising out of, in connection with, or as a result of, this Agreement, any other Loan Document or any agreement or instrument contemplated hereby or thereby, the Transactions, any Loan or Letter of Credit or the use of the proceeds thereof.

(e) All amounts due under this Section 12.03 shall be payable promptly after written demand therefor.

Section 12.04 Successors and Assigns.

(a) The provisions of this Agreement shall be binding upon and inure to the benefit of the parties hereto and their respective successors and assigns permitted hereby (including any Affiliate of the Issuing Bank that issues any Letter of Credit), except that (i) the Borrower may not assign or otherwise transfer any of its rights or obligations hereunder without the prior written consent of each Lender (and any attempted assignment or transfer by the Borrower without such consent shall be null and void) and (ii) no Lender may assign or otherwise transfer its rights or obligations hereunder except in accordance with this Section 12.04. Nothing in this Agreement, expressed or implied, shall be construed to confer upon any Person (other than the parties hereto, their respective successors and assigns permitted hereby (including any Affiliate of the Issuing Bank that issues any Letter of Credit), Participants (to the extent provided in Section 12.04(c)) and, to the extent expressly contemplated hereby, the Related Parties of each of the Administrative Agent, the Issuing Bank and the Lenders) any legal or equitable right, remedy or claim under or by reason of this Agreement.

(b) (i) Subject to the conditions set forth in Section 12.04(b)(ii), any Lender may assign to one or more assignees all or a portion of its rights and obligations under this Agreement (including all or a portion of its Commitment and the Loans at the time owing to it) with the prior written consent (such consent not to be unreasonably withheld) of:

(A) the Borrower, provided that no consent of the Borrower shall be required for an assignment to a Lender, an Affiliate of a Lender or, if an Event of Default has occurred and is continuing, any other assignee; and

(B) the Administrative Agent, provided that no consent of the Administrative Agent shall be required for an assignment to an assignee that is a Lender immediately prior to giving effect to such assignment.

(ii) Assignments shall be subject to the following additional conditions:

(A) except in the case of an assignment to a Lender or an Affiliate of a Lender or an assignment of the entire remaining amount of the assigning Lender’s Commitment, the amount of the Commitment of the assigning Lender subject to each such assignment (determined as of the date the Assignment and Assumption with respect to such assignment is delivered to the Administrative Agent) shall not be less than $5,000,000, and, after giving effect thereto, the assigning Lender shall have commitments and Loans aggregating at

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least $5,000,000, in each case, unless each of the Borrower and the Administrative Agent otherwise consent, provided that no such consent of the Borrower shall be required if an Event of Default has occurred and is continuing;

(B) each partial assignment shall be made as an assignment of a proportionate part of all the assigning Lender’s rights and obligations under this Agreement;

(C) the parties to each assignment shall execute and deliver to the Administrative Agent an Assignment and Assumption, together with a processing and recordation fee of $3,500;

(D) the assignee, if it shall not be a Lender, shall deliver to the Administrative Agent an Administrative Questionnaire; and

(E) in the case of an assignment to a CLO, the assigning Lender shall retain the sole right to approve any amendment, modification or waiver of any provision of this Agreement, provided that the Assignment and Assumption between such Lender and such CLO may provide that such Lender will not, without the consent of such CLO, agree to any amendment, modification or waiver described in the first proviso to Section 12.02 that affects such CLO.

(iii) Subject to Section 12.04(b)(iv) and the acceptance and recording thereof, from and after the effective date specified in each Assignment and Assumption the assignee thereunder shall be a party hereto and, to the extent of the interest assigned by such Assignment and Assumption, have the rights and obligations of a Lender under this Agreement, and the assigning Lender thereunder shall, to the extent of the interest assigned by such Assignment and Assumption, be released from its obligations under this Agreement (and, in the case of an Assignment and Assumption covering all of the assigning Lender’s rights and obligations under this Agreement, such Lender shall cease to be a party hereto but shall continue to be entitled to the benefits of Section 5.01, Section 5.02, Section 5.03 and Section 12.03). Any assignment or transfer by a Lender of rights or obligations under this Agreement that does not comply with this Section 12.04 shall be treated for purposes of this Agreement as a sale by such Lender of a participation in such rights and obligations in accordance with Section 12.04(c).

(iv) The Administrative Agent, acting for this purpose as an agent of the Borrower, shall maintain at one of its offices a copy of each Assignment and Assumption delivered to it and a register for the recordation of the names and addresses of the Lenders, and the Maximum Credit Amount of, and principal amount of the Loans and LC Disbursements owing to, each Lender pursuant to the terms hereof from time to time (the “Register”). The entries in the Register shall be conclusive, and the Borrower, the Administrative Agent, the Issuing Bank and the Lenders may treat each Person whose name is recorded in the Register pursuant to the terms hereof as a Lender hereunder for all purposes of this Agreement, notwithstanding notice to the contrary. The Register shall be available for inspection by the Borrower, the Issuing Bank and any Lender, at any reasonable time and from time to time upon reasonable prior notice. In connection with any changes to the Register, if necessary, the Administrative Agent will reflect the revisions on Annex I and forward a copy of such revised Annex I to the Borrower, the Issuing Bank and each Lender.

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(v) Upon its receipt of a duly completed Assignment and Assumption executed by an assigning Lender and an assignee, the assignee’s completed Administrative Questionnaire (unless the assignee shall already be a Lender hereunder), the processing and recordation fee referred to in Section 12.04(b) and any written consent to such assignment required by Section 12.04(b), the Administrative Agent shall accept such Assignment and Assumption and record the information contained therein in the Register. No assignment shall be effective for purposes of this Agreement unless it has been recorded in the Register as provided in this Section 12.04(b).

(c) (i) Any Lender may, without the consent of the Borrower, the Administrative Agent or the Issuing Bank, sell participations to one or more banks or other entities (a “Participant”) in all or a portion of such Lender’s rights and obligations under this Agreement (including all or a portion of its Commitment and the Loans owing to it); provided that (A) such Lender’s obligations under this Agreement shall remain unchanged, (B) such Lender shall remain solely responsible to the other parties hereto for the performance of such obligations and (C) the Borrower, the Administrative Agent, the Issuing Bank and the other Lenders shall continue to deal solely and directly with such Lender in connection with such Lender’s rights and obligations under this Agreement. Any agreement or instrument pursuant to which a Lender sells such a participation shall provide that such Lender shall retain the sole right to enforce this Agreement and to approve any amendment, modification or waiver of any provision of this Agreement; provided that such agreement or instrument may provide that such Lender will not, without the consent of the Participant, agree to any amendment, modification or waiver described in the proviso to Section 12.02 that affects such Participant. In addition such agreement must provide that the Participant be bound by the provisions of Section 12.03. Subject to Section 12.04(c)(ii), the Borrower agrees that each Participant shall be entitled to the benefits of Section 5.01, Section 5.02 and Section 5.03 to the same extent as if it were a Lender and had acquired its interest by assignment pursuant to Section 12.04(b). To the extent permitted by law, each Participant also shall be entitled to the benefits of Section 12.08 as though it were a Lender, provided such Participant agrees to be subject to Section 4.01(c) as though it were a Lender.

(ii) A Participant shall not be entitled to receive any greater payment under Section 5.01 or Section 5.03 than the applicable Lender would have been entitled to receive with respect to the participation sold to such Participant, unless the sale of the participation to such Participant is made with the Borrower’s prior written consent. A Participant that would be a Foreign Lender if it were a Lender shall not be entitled to the benefits of Section 5.03 unless the Borrower is notified of the participation sold to such Participant and such Participant agrees, for the benefit of the Borrower, to comply with Section 5.03(e) as though it were a Lender.

(d) Any Lender may at any time pledge or assign a security interest in all or any portion of its rights under this Agreement to secure obligations of such Lender, including any pledge or assignment to secure obligations to a Federal Reserve Bank, and this Section 12.04(d) shall not apply to any such pledge or assignment of a security interest; provided that no such pledge or assignment of a security interest shall release a Lender from any of its obligations hereunder or substitute any such pledgee or assignee for such Lender as a party hereto.

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(e) Notwithstanding any of the foregoing, the Borrower will not and will not permit any of its Affiliates to assume, purchase, or otherwise acquire, directly or indirectly, all or any portion of any Lender’s rights and obligations under this Agreement (including all or any portion of any Lender’s Commitment and Loans). Notwithstanding any of the foregoing, no Lender shall assign, sell, sell participations, or otherwise dispose, directly or indirectly, of all or any portion of any its rights and obligations under this Agreement (including all or a portion of its Commitment and the Loans owing to it) to the Borrower or to any of the Borrower’s Affiliates.

Section 12.05 Survival; Revival; Reinstatement.

(a) All covenants, agreements, representations and warranties made by the Borrower herein and in the certificates or other instruments delivered in connection with or pursuant to this Agreement or any other Loan Document shall be considered to have been relied upon by the other parties hereto and shall survive the execution and delivery of this Agreement and the making of any Loans and issuance of any Letters of Credit, regardless of any investigation made by any such other party or on its behalf and notwithstanding that the Administrative Agent, the Issuing Bank or any Lender may have had notice or knowledge of any Default or incorrect representation or warranty at the time any credit is extended hereunder, and shall continue in full force and effect as long as the principal of or any accrued interest on any Loan or any fee or any other amount payable under this Agreement is outstanding and unpaid or any Letter of Credit is outstanding and so long as the Commitments have not expired or terminated. The provisions of Section 5.01, Section 5.02, Section 5.03 and Section 12.03 and ARTICLE XI shall survive and remain in full force and effect regardless of the consummation of the transactions contemplated hereby, the repayment of the Loans, the expiration or termination of the Letters of Credit and the Commitments or the termination of this Agreement, any other Loan Document or any provision hereof or thereof.

(b) To the extent that any payments on the Indebtedness or proceeds of any collateral are subsequently invalidated, declared to be fraudulent or preferential, set aside or required to be repaid to a trustee, debtor in possession, receiver or other Person under any bankruptcy law, common law or equitable cause, then to such extent, the Indebtedness so satisfied shall be revived and continue as if such payment or proceeds had not been received and the Administrative Agent’s and the Lenders’ Liens, security interests, rights, powers and remedies under this Agreement and each Loan Document shall continue in full force and effect. In such event, each Loan Document shall be automatically reinstated and the Borrower shall take such action as may be reasonably requested by the Administrative Agent and the Lenders to effect such reinstatement.

Section 12.06 Counterparts; Integration; Effectiveness.

(a) This Agreement may be executed in counterparts (and by different parties hereto on different counterparts), each of which shall constitute an original, but all of which when taken together shall constitute a single contract. Delivery of an executed signature page to this Agreement by facsimile transmission or other electronic transmission shall be as effective as delivery of a manually executed counterpart of this Agreement.

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(b) This Agreement, the other Loan Documents and any separate letter agreements with respect to fees payable to the Administrative Agent constitute the entire contract among the parties relating to the subject matter hereof and thereof and supersede any and all previous agreements and understandings, oral or written, relating to the subject matter hereof and thereof. This Agreement and the other Loan Documents represent the final agreement among the parties hereto and thereto and may not be contradicted by evidence of prior, contemporaneous or subsequent oral agreements of the parties. There are no unwritten oral agreements between the parties.

(c) Except as provided in Section 6.01, this Agreement shall become effective when it shall have been executed by the Administrative Agent and when the Administrative Agent shall have received counterparts hereof which, when taken together, bear the signatures of each of the other parties hereto, and thereafter shall be binding upon and inure to the benefit of the parties hereto and their respective successors and assigns. Delivery of an executed counterpart of a signature page of this Agreement by telecopy shall be effective as delivery of a manually executed counterpart of this Agreement.

Section 12.07 Severability. Any provision of this Agreement or any other Loan Document held to be invalid, illegal or unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective to the extent of such invalidity, illegality or unenforceability without affecting the validity, legality and enforceability of the remaining provisions hereof or thereof; and the invalidity of a particular provision in a particular jurisdiction shall not invalidate such provision in any other jurisdiction.

Section 12.08 Right of Setoff. If an Event of Default shall have occurred and be continuing, each Lender and each of its Affiliates is hereby authorized at any time and from time to time, to the fullest extent permitted by law, to set off and apply any and all deposits (general or special, time or demand, provisional or final) at any time held and other obligations (of whatsoever kind, including, without limitations obligations under Swap Agreements) at any time owing by such Lender or Affiliate to or for the credit or the account of the Borrower or any Material Subsidiary against any of and all the obligations of the Borrower or any Material Subsidiary owed to such Lender now or hereafter existing under this Agreement or any other Loan Document, irrespective of whether or not such Lender shall have made any demand under this Agreement or any other Loan Document and although such obligations may be unmatured. The rights of each Lender under this Section 12.08 are in addition to other rights and remedies (including other rights of setoff) which such Lender or its Affiliates may have.

Section 12.09 GOVERNING LAW; JURISDICTION; CONSENT TO SERVICE OF PROCESS.

(a) THIS AGREEMENT AND THE NOTES SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF TEXAS EXCEPT TO THE EXTENT THAT UNITED STATES FEDERAL LAW PERMITS ANY LENDER TO CONTRACT FOR, CHARGE, RECEIVE, RESERVE OR TAKE INTEREST AT THE RATE ALLOWED BY THE LAWS OF THE STATE WHERE SUCH LENDER IS LOCATED. CHAPTER 346 OF THE TEXAS FINANCE CODE (WHICH REGULATES

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CERTAIN REVOLVING CREDIT LOAN ACCOUNTS AND REVOLVING TRI-PARTY ACCOUNTS) SHALL NOT APPLY TO THIS AGREEMENT OR THE NOTES.

(b) ANY LEGAL ACTION OR PROCEEDING WITH RESPECT TO THE LOAN DOCUMENTS SHALL BE BROUGHT IN THE COURTS OF THE STATE OF TEXAS OR OF THE UNITED STATES OF AMERICA FOR THE SOUTHERN DISTRICT OF TEXAS, AND, BY EXECUTION AND DELIVERY OF THIS AGREEMENT, EACH PARTY HEREBY ACCEPTS FOR ITSELF AND (TO THE EXTENT PERMITTED BY LAW) IN RESPECT OF ITS PROPERTY, GENERALLY AND UNCONDITIONALLY, THE JURISDICTION OF THE AFORESAID COURTS. EACH PARTY HEREBY IRREVOCABLY WAIVES ANY OBJECTION, INCLUDING, WITHOUT LIMITATION, ANY OBJECTION TO THE LAYING OF VENUE OR BASED ON THE GROUNDS OF FORUM NON CONVENIENS, WHICH IT MAY NOW OR HEREAFTER HAVE TO THE BRINGING OF ANY SUCH ACTION OR PROCEEDING IN SUCH RESPECTIVE JURISDICTIONS. THIS SUBMISSION TO JURISDICTION IS NON-EXCLUSIVE AND DOES NOT PRECLUDE A PARTY FROM OBTAINING JURISDICTION OVER ANOTHER PARTY IN ANY COURT OTHERWISE HAVING JURISDICTION.

(c) THE BORROWER HEREBY IRREVOCABLY DESIGNATES, APPOINTS AND EMPOWERS AND HEREBY CONFERS AN IRREVOCABLE SPECIAL POWER, AMPLE AND SUFFICIENT, TO CORPORATION SERVICE COMPANY, WITH OFFICES ON THE DATE HEREOF AT DENVER, COLORADO AS ITS DESIGNEE, APPOINTEE AND AGENT WITH RESPECT TO ANY SUCH ACTION OR PROCEEDING IN TEXAS TO RECEIVE, ACCEPT AND ACKNOWLEDGE FOR AND ON ITS BEHALF, AND IN RESPECT OF ITS PROPERTY, SERVICE OF ANY AND ALL LEGAL PROCESS, SUMMONS, NOTICES AND DOCUMENTS WHICH MAY BE SERVED IN ANY SUCH PROCEEDING AND AGREES THAT THE FAILURE OF SUCH AGENT TO GIVE ANY ADVICE OF ANY SUCH SERVICE OF PROCESS TO THE BORROWER SHALL NOT IMPAIR OR AFFECT THE VALIDITY OF SUCH SERVICE OR OF ANY CLAIM BASED THEREON. IF FOR ANY REASON SUCH DESIGNEE, APPOINTEE AND AGENT SHALL CEASE TO BE AVAILABLE TO ACT AS SUCH, THE BORROWER AGREES TO DESIGNATE A NEW DESIGNEE, APPOINTEE AND AGENT IN TEXAS REASONABLY SATISFACTORY TO THE ADMINISTRATIVE AGENT ON THE TERMS AND FOR THE PURPOSES OF THIS PROVISION. EACH PARTY IRREVOCABLY CONSENTS TO THE SERVICE OF PROCESS OF ANY OF THE AFOREMENTIONED COURTS IN ANY SUCH ACTION OR PROCEEDING BY THE MAILING OF COPIES THEREOF BY REGISTERED OR CERTIFIED MAIL, POSTAGE PREPAID, TO IT AT THE ADDRESS SPECIFIED IN Section 12.01 OR SUCH OTHER ADDRESS AS IS SPECIFIED PURSUANT TO Section 12.01 (OR ITS ASSIGNMENT AND ASSUMPTION), SUCH SERVICE TO BECOME EFFECTIVE UPON RECEIPT. NOTHING HEREIN SHALL AFFECT THE RIGHT OF A PARTY OR ANY HOLDER OF A NOTE TO SERVE PROCESS IN ANY OTHER MANNER PERMITTED BY LAW OR TO COMMENCE LEGAL PROCEEDINGS OR OTHERWISE PROCEED AGAINST ANOTHER PARTY IN ANY OTHER JURISDICTION.

(d) EACH PARTY HEREBY (i) IRREVOCABLY AND UNCONDITIONALLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY LAW, TRIAL BY JURY IN ANY LEGAL ACTION OR PROCEEDING RELATING TO THIS

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AGREEMENT OR ANY OTHER LOAN DOCUMENT AND FOR ANY COUNTERCLAIM THEREIN; (ii) IRREVOCABLY WAIVES, TO THE MAXIMUM EXTENT NOT PROHIBITED BY LAW, ANY RIGHT IT MAY HAVE TO CLAIM OR RECOVER IN ANY SUCH LITIGATION ANY SPECIAL, EXEMPLARY, PUNITIVE OR CONSEQUENTIAL DAMAGES, OR DAMAGES OTHER THAN, OR IN ADDITION TO, ACTUAL DAMAGES; (iii) CERTIFIES THAT NO PARTY HERETO NOR ANY REPRESENTATIVE OR AGENT OF COUNSEL FOR ANY PARTY HERETO HAS REPRESENTED, EXPRESSLY OR OTHERWISE, OR IMPLIED THAT SUCH PARTY WOULD NOT, IN THE EVENT OF LITIGATION, SEEK TO ENFORCE THE FOREGOING WAIVERS, AND (iv) ACKNOWLEDGES THAT IT HAS BEEN INDUCED TO ENTER INTO THIS AGREEMENT, THE LOAN DOCUMENTS AND THE TRANSACTIONS CONTEMPLATED HEREBY AND THEREBY BY, AMONG OTHER THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS CONTAINED IN THIS Section 12.09.

Section 12.10 Headings. Article and Section headings and the Table of Contents used herein are for convenience of reference only, are not part of this Agreement and shall not affect the construction of, or be taken into consideration in interpreting, this Agreement.

Section 12.11 Confidentiality. Each of the Administrative Agent, the Issuing Bank and the Lenders agrees to maintain the confidentiality of the Information (as defined below), except that Information may be disclosed (a) to its and its Affiliates’ directors, officers, employees and agents, including accountants, legal counsel and other advisors (it being understood that the Persons to whom such disclosure is made will be informed of the confidential nature of such Information and instructed to keep such Information confidential), (b) to the extent requested by any regulatory authority, (c) to the extent required by applicable laws or regulations or by any subpoena or similar legal process, (d) to any other party to this Agreement or any other Loan Document, (e) in connection with the exercise of any remedies hereunder or under any other Loan Document or any suit, action or proceeding relating to this Agreement or any other Loan Document or the enforcement of rights hereunder or thereunder, (f) subject to an agreement containing provisions substantially the same as those of this Section 12.11, to (i) any assignee of or Participant in, or any prospective assignee of or Participant in, any of its rights or obligations under this Agreement or (ii) any actual or prospective counterparty (or its advisors) to any Swap Agreement relating to the Borrower and its obligations, (g) with the consent of the Borrower or (h) to the extent such Information (i) becomes publicly available other than as a result of a breach of this Section 12.11 or (ii) becomes available to the Administrative Agent, the Issuing Bank or any Lender on a nonconfidential basis from a source other than the Borrower. For the purposes of this Section 12.11, “Information” means all information received from the Borrower or any Material Subsidiary relating to the Borrower or any Material Subsidiary and their businesses, other than any such information that is available to the Administrative Agent, the Issuing Bank or any Lender on a nonconfidential basis prior to disclosure by the Borrower or a Material Subsidiary; provided that, in the case of information received from the Borrower or any Material Subsidiary after the date hereof, such information is clearly identified at the time of delivery as confidential. Any Person required to maintain the confidentiality of Information as provided in this Section 12.11 shall be considered to have complied with its obligation to do so if such Person has exercised the same degree of care to maintain the confidentiality of such Information as such Person would accord to its own confidential information. Notwithstanding anything herein to the contrary, “Information” shall not include, and the Borrower, the

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Borrower’s Subsidiaries, the Administrative Agent, each Lender and the respective Affiliates of each of the foregoing (and the respective partners, directors, officers, employees, agents, advisors and other representatives of the aforementioned Persons), and any other party, may disclose to any and all Persons, without limitation of any kind (a) any information with respect to the U.S. federal and state income tax treatment of the transactions contemplated hereby and any facts that may be relevant to understanding the U.S. federal or state income tax treatment of such transactions (“tax structure”), which facts shall not include for this purpose the names of the parties or any other person named herein, or information that would permit identification of the parties or such other persons, or any pricing terms or other nonpublic business or financial information that is unrelated to such tax treatment or tax structure, and (b) all materials of any kind (including opinions or other tax analyses) that are provided to the Borrower, the Administrative Agent or such Lender relating to such tax treatment or tax structure.

Section 12.12 Interest Rate Limitation. It is the intention of the parties hereto that each Lender shall conform strictly to usury laws applicable to it. Accordingly, if the transactions contemplated hereby would be usurious as to any Lender under laws applicable to it (including the laws of the United States of America and the State of Texas or any other jurisdiction whose laws may be mandatorily applicable to such Lender notwithstanding the other provisions of this Agreement), then, in that event, notwithstanding anything to the contrary in any of the Loan Documents or any agreement entered into in connection with or as security for the Notes, it is agreed as follows: (i) the aggregate of all consideration which constitutes interest under law applicable to any Lender that is contracted for, taken, reserved, charged or received by such Lender under any of the Loan Documents or agreements or otherwise in connection with the Notes shall under no circumstances exceed the maximum amount allowed by such applicable law, and any excess shall be canceled automatically and if theretofore paid shall be credited by such Lender on the principal amount of the Indebtedness (or, to the extent that the principal amount of the Indebtedness shall have been or would thereby be paid in full, refunded by such Lender to the Borrower); and (ii) in the event that the maturity of the Notes is accelerated by reason of an election of the holder thereof resulting from any Event of Default under this Agreement or otherwise, or in the event of any required or permitted prepayment, then such consideration that constitutes interest under law applicable to any Lender may never include more than the maximum amount allowed by such applicable law, and excess interest, if any, provided for in this Agreement or otherwise shall be canceled automatically by such Lender as of the date of such acceleration or prepayment and, if theretofore paid, shall be credited by such Lender on the principal amount of the Indebtedness (or, to the extent that the principal amount of the Indebtedness shall have been or would thereby be paid in full, refunded by such Lender to the Borrower). All sums paid or agreed to be paid to any Lender for the use, forbearance or detention of sums due hereunder shall, to the extent permitted by law applicable to such Lender, be amortized, prorated, allocated and spread throughout the stated term of the Loans evidenced by the Notes until payment in full so that the rate or amount of interest on account of any Loans hereunder does not exceed the maximum amount allowed by such applicable law. If at any time and from time to time (i) the amount of interest payable to any Lender on any date shall be computed at the Highest Lawful Rate applicable to such Lender pursuant to this Section 12.12 and (ii) in respect of any subsequent interest computation period the amount of interest otherwise payable to such Lender would be less than the amount of interest payable to such Lender computed at the Highest Lawful Rate applicable to such Lender, then the amount of interest payable to such Lender in respect of such subsequent interest computation period shall continue

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to be computed at the Highest Lawful Rate applicable to such Lender until the total amount of interest payable to such Lender shall equal the total amount of interest which would have been payable to such Lender if the total amount of interest had been computed without giving effect to this Section 12.12. To the extent that Chapter 303 of the Texas Finance Code is relevant for the purpose of determining the Highest Lawful Rate applicable to a Lender, such Lender elects to determine the applicable rate ceiling under such Chapter by the weekly ceiling from time to time in effect. Chapter 346 of the Texas Finance Code does not apply to the Borrower’s obligations hereunder.

Section 12.13 EXCULPATION PROVISIONS. EACH OF THE PARTIES HERETO SPECIFICALLY AGREES THAT IT HAS A DUTY TO READ THIS AGREEMENT AND THE OTHER LOAN DOCUMENTS AND AGREES THAT IT IS CHARGED WITH NOTICE AND KNOWLEDGE OF THE TERMS OF THIS AGREEMENT AND THE OTHER LOAN DOCUMENTS; THAT IT HAS IN FACT READ THIS AGREEMENT AND IS FULLY INFORMED AND HAS FULL NOTICE AND KNOWLEDGE OF THE TERMS, CONDITIONS AND EFFECTS OF THIS AGREEMENT; THAT IT HAS BEEN REPRESENTED BY INDEPENDENT LEGAL COUNSEL OF ITS CHOICE THROUGHOUT THE NEGOTIATIONS PRECEDING ITS EXECUTION OF THIS AGREEMENT AND THE OTHER LOAN DOCUMENTS; AND HAS RECEIVED THE ADVICE OF ITS ATTORNEY IN ENTERING INTO THIS AGREEMENT AND THE OTHER LOAN DOCUMENTS; AND THAT IT RECOGNIZES THAT CERTAIN OF THE TERMS OF THIS AGREEMENT AND THE OTHER LOAN DOCUMENTS RESULT IN ONE PARTY ASSUMING THE LIABILITY INHERENT IN SOME ASPECTS OF THE TRANSACTION AND RELIEVING THE OTHER PARTY OF ITS RESPONSIBILITY FOR SUCH LIABILITY. EACH PARTY HERETO AGREES AND COVENANTS THAT IT WILL NOT CONTEST THE VALIDITY OR ENFORCEABILITY OF ANY EXCULPATORY PROVISION OF THIS AGREEMENT AND THE OTHER LOAN DOCUMENTS ON THE BASIS THAT THE PARTY HAD NO NOTICE OR KNOWLEDGE OF SUCH PROVISION OR THAT THE PROVISION IS NOT “CONSPICUOUS.”

Section 12.14 Existing Credit Agreement.

(a) On the Effective Date, the Existing Credit Agreement shall be amended and restated in its entirety by this Agreement, and the Existing Credit Agreement shall be replaced hereby; provided that the Borrower, the Administrative Agent and the Lenders agree that (i) on the date of the initial funding of Loans hereunder, the loans and other Debt of the Borrower under the Existing Credit Agreement shall be renewed, rearranged, modified and extended with the proceeds of the initial funding and the “Commitments” of the lenders under the Existing Credit Agreement shall be superseded by this Agreement and terminated (except as otherwise expressly provided in Section 12.05(a) of the Existing Credit Agreement with respect to the survival of certain covenants and agreements made by the Borrower in the Existing Credit Agreement), (ii) the Existing Credit Agreement shall continue to evidence the representations and warranties made by the Borrower prior to the Effective Date, (iii) except as expressly stated herein or amended, the other Loan Documents are ratified and confirmed as remaining unmodified and in full force and effect with respect to all Indebtedness, (iv) the Existing Credit Agreement shall continue to evidence and govern any action or omission performed, required to be performed or approved pursuant to the Existing Credit Agreement prior to the Effective Date

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(including, without limitation, any failure, prior to the Effective Date, to comply with the covenants contained in the Existing Credit Agreement and any permitted releases of collateral) and any act, omission or event to occur or measured by any date or period of time commencing on, or including any date or period prior to, the Effective Date and (v) the terms and provisions of the Existing Credit Agreement shall continue in full force and effect to the extent provided in clause (d) of this Section 12.14. The amendments and restatements set forth herein shall not cure any breach thereof or any “Default” or “Event of Default” under and as defined in the Existing Credit Agreement existing prior to the Effective Date. This Agreement is not in any way intended to constitute a novation of the obligations and liabilities existing under the Existing Credit Agreement or evidence payment of all or any portion of such obligations and liabilities.

(b) The terms and conditions of this Agreement and the Administrative Agent’s, the Lenders’ and the Issuing Banks’ rights and remedies under this Agreement and the other Loan Documents shall apply to all of the Indebtedness incurred under the Existing Credit Agreement and the Letters of Credit issued thereunder.

(c) On and after the Effective Date, (i) all references to the Existing Credit Agreement (or to any amendment or any amendment and restatement thereof) in the Loan Documents (other than this Agreement) shall be deemed to refer to the Existing Credit Agreement, as amended and restated hereby, (ii) all references to any section (or subsection) of the Existing Credit Agreement or in any Loan Document (but not herein) shall be amended to become, mutatis mutandis, references to the corresponding provisions of this Agreement and (iii) except as the context otherwise provides, on or after the Effective Date, all references to this Agreement herein (including for purposes of indemnification and reimbursement of fees) shall be deemed to be references to the Existing Credit Agreement, as amended and restated hereby.

(d) This amendment and restatement is limited as written and is not a consent to any other amendment, restatement or waiver, whether or not similar and, except as expressly provided herein or in any other Loan Document, all terms and conditions of the Loan Documents remain in full force and effect unless specifically amended hereby or by any other Loan Document.

(e) The undersigned waive any right to receive any notice of such termination and any right to receive any notice of prepayment of amounts owed under the Existing Credit Agreement. Each Lender that was a party to the Existing Credit Agreement hereby agrees to return to the Borrower, with reasonable promptness, any promissory note delivered by the Borrower to such Lender in connection with the Existing Credit Agreement.

Section 12.15 Collateral Matters; Swap Agreements. The benefit of the Security Instruments and of the provisions of this Agreement relating to any collateral securing the Indebtedness shall also extend to and be available to those Lenders or their Affiliates which are counterparties to any Swap Agreement with the Borrower or any of its Subsidiaries on a pro rata basis in respect of any obligations of the Borrower or any of its Subsidiaries which arise under any such Swap Agreement while such Person or its Affiliate is a Lender, but only while such Person or its Affiliate is a Lender, including any Swap Agreements between such Persons in existence prior to the date hereof. No Lender or any Affiliate of a Lender shall have any voting

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rights under any Loan Document as a result of the existence of obligations owed to it under any such Swap Agreements.

Section 12.16 No Third Party Beneficiaries. This Agreement, the other Loan Documents, and the agreement of the Lenders to make Loans and the Issuing Bank to issue, amend, renew or extend Letters of Credit hereunder are solely for the benefit of the Borrower, and no other Person (including, without limitation, any Subsidiary of the Borrower, any obligor, contractor, subcontractor, supplier or materialsman) shall have any rights, claims, remedies or privileges hereunder or under any other Loan Document against the Administrative Agent, any other Agent, the Issuing Bank or any Lender for any reason whatsoever. There are no third party beneficiaries.

Section 12.17 USA Patriot Act Notice. Each Lender hereby notifies the Borrower that pursuant to the requirements of the USA Patriot Act (Title III of Pub. L. 107-56 (signed into law October 26, 2001)) (the “Act”), it is required to obtain, verify and record information that identifies the Borrower, which information includes the name and address of the Borrower and other information that will allow such Lender to identify the Borrower in accordance with the Act.

100

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The parties hereto have caused this Agreement to be duly executed as of the day and year first above written.

BORROWER:

ST. MARY LAND & EXPLORATION COMPANY

By: /s/ A. WADE PURSELL

Name: A. Wade Pursell

Title: Executive Vice President and Chief Financial Officer

[Signature Page to St. Mary Land & Exploration Company Third Amended & Restated Credit Agreement]

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AGENTS AND LENDERS: WACHOVIA BANK, NATIONAL

ASSOCIATION, Individually and as

Administrative Agent

By: /s/ LEANNE PHILLIPS

Name: Leanne Phillips

Title: Director

[Signature Page to St. Mary Land & Exploration Company Third Amended & Restated Credit Agreement]

Houston 3921802

BANK OF AMERICA, N.A., Individually and as Syndication Agent

By: /s/ STEPHEN J. HOFFMAN

Name: Stephen J. Hoffman

Title: Managing Director

[Signature Page to St. Mary Land & Exploration Company Third Amended & Restated Credit Agreement]

Houston 3921802

WELLS FARGO BANK, N.A.

By: /s/ TIM GREEN

Name: Tim Green

Title: Vice President

[Signature Page to St. Mary Land & Exploration Company Third Amended & Restated Credit Agreement]

Houston 3921802

JPMORGAN CHASE BANK, N.A.

By: /s/ BRIAN ORLANDO

Name: Brian Orlando

Title: Vice President

[Signature Page to St. Mary Land & Exploration Company Third Amended & Restated Credit Agreement]

Houston 3921802

COMERICA BANK

By: /s/ CAROLINE MCCLURG

Name: Caroline McClurg

Title: Vice President

[Signature Page to St. Mary Land & Exploration Company Third Amended & Restated Credit Agreement]

Houston 3921802

U.S. BANK NATIONAL ASSOCIATION

By: /s/ DARIA MAHONEY

Name: Daria Mahoney

Title: Vice President

[Signature Page to St. Mary Land & Exploration Company Third Amended & Restated Credit Agreement]

Houston 3921802

BANK OF SCOTLAND PLC

By: /s/ JULIA R. FRANKLIN

Name: Julia R. Franklin

Title: Assistant Vice President

By: NA

Name:

Title:

[Signature Page to St. Mary Land & Exploration Company Third Amended & Restated Credit Agreement]

Houston 3921802

ROYAL BANK OF CANADA

By: /s/ DON J. MCKINNERNEY

Name: Don J. McKinnerney

Title: Authorized Signatory

[Signature Page to St. Mary Land & Exploration Company Third Amended & Restated Credit Agreement]

Houston 3921802

KEYBANK NATIONAL ASSOCIATION

By: /s/ TODD COKER

Name: Todd Coker

Title: Assistant Vice President

[Signature Page to St. Mary Land & Exploration Company Third Amended & Restated Credit Agreement]

Houston 3921802

BANK OF OKLAHOMA, N.A.

By: /s/ GUY C. EVANGELISTA

Name: Guy C. Evangelista

Title: SVP

[Signature Page to St. Mary Land & Exploration Company Third Amended & Restated Credit Agreement]

Houston 3921802

CAPITAL ONE, NATIONAL ASSOCIATION

By: /s/ SCOTT L. JOYCE

Name: Scott L. Joyce

Title: Senior Vice President

[Signature Page to St. Mary Land & Exploration Company Third Amended & Restated Credit Agreement]

Houston 3921802

BARCLAYS BANK PLC

By: /s/ MARIA LUND

Name: Maria Lund

Title: Vice President

[Signature Page to St. Mary Land & Exploration Company Third Amended & Restated Credit Agreement]

Houston 3921802

COMPASS BANK

By: /s/ GREG DETERMANN

Name: Greg Determann

Title: Vice President

[Signature Page to St. Mary Land & Exploration Company Third Amended & Restated Credit Agreement]

Houston 3921802

ANNEX I

LIST OF COMMITMENTS

Name of Lender	Applicable Percentage	Commitment
Bank of America, N.A.	13.27434%	$90,000,000
Comerica Bank	11.06195%	$75,000,000
Compass Bank	11.06195%	$75,000,000
JPMorgan Chase Bank, N.A.	11.06195%	$75,000,000
U.S. Bank National Association	9.58702%	$65,000,000
Wachovia Bank, National Association	8.14897%	$55,250,000
Wells Fargo Bank, N.A.	8.14897%	$55,250,000
Bank of Scotland plc	6.45280%	$43,750,000
Royal Bank of Canada	6.45280%	$43,750,000
Key Bank National Association	5.89971%	$40,000,000
Bank of Oklahoma, N.A.	3.68732%	$25,000,000
Capital One, National Association	3.68732%	$25,000,000
Barclays Bank PLC	1.47493%	$10,000,000
TOTAL	100.00%	$678,000,000

Annex I - 1

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ANNEX II

EXISTING LETTERS OF CREDIT

1.	LC# SM234314W, issued in the amount of $1,280,000, in favor of Hund, Krier, Wilkerson & Wright, P.C., with an expiry date of 3/24/10

Annex II - 1

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EXHIBIT A

[FORM OF] NOTE

[$___________] [__________], 200[__]

FOR VALUE RECEIVED, St. Mary Land & Exploration Company, a Delaware corporation (the “Borrower”) hereby promises to pay to the order of [______________________________] (the “Lender”), at the principal office of Wachovia Bank, National Association (the “Administrative Agent”), at [______________________________], the principal sum of [______________________________] Dollars ($[_________]) (or such lesser amount as shall equal the aggregate unpaid principal amount of the Loans made by the Lender to the Borrower under the Credit Agreement, as hereinafter defined), in lawful money of the United States of America and in immediately available funds, on the dates and in the principal amounts provided in the Credit Agreement, and to pay interest on the unpaid principal amount of each such Loan, at such office, in like money and funds, for the period commencing on the date of such Loan until such Loan shall be paid in full, at the rates per annum and on the dates provided in the Credit Agreement.

The date, amount, Type, interest rate, Interest Period and maturity of each Loan made by the Lender to the Borrower, and each payment made on account of the principal thereof, shall be recorded by the Lender on its books and, prior to any transfer of this Note, may be endorsed by the Lender on the schedules attached hereto or any continuation thereof or on any separate record maintained by the Lender. Failure to make any such notation or to attach a schedule shall not affect any Lender’s or the Borrower’s rights or obligations in respect of such Loans or affect the validity of such transfer by any Lender of this Note.

This Note is one of the Notes referred to in the Third Amended and Restated Credit Agreement dated as of [________ __], 2009 among the Borrower, the Administrative Agent, and the other agents and lenders signatory thereto (including the Lender), and evidences Loans made by the Lender thereunder (such Credit Agreement as the same may be amended, supplemented or restated from time to time, the “Credit Agreement”). Capitalized terms used in this Note have the respective meanings assigned to them in the Credit Agreement.

This Note is issued pursuant to the Credit Agreement and is entitled to the benefits provided for in the Credit Agreement and the other Loan Documents. The Credit Agreement provides for the acceleration of the maturity of this Note upon the occurrence of certain events, for prepayments of Loans upon the terms and conditions specified therein and other provisions relevant to this Note.

THIS NOTE SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF TEXAS.

ST. MARY LAND & EXPLORATION COMPANY

By: _________________________________

Name: _________________________________

Exhibit A - 1

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Title: _________________________________

Exhibit A - 2

Houston 3921802v.12

EXHIBIT B

[FORM OF]

COMPLIANCE CERTIFICATE

The undersigned hereby certifies that he/she is the [________________________]of St. Mary Land & Exploration Company, a Delaware corporation (the “Borrower”), and that as such he/she is authorized to execute this certificate in the foregoing capacity and on behalf of the Borrower. With reference to the Third Amended and Restated Credit Agreement dated as of [___________ __], 2009 (together with all amendments, supplements or restatements thereto being the “Agreement”) among the Borrower, Wachovia Bank, National Association, as Administrative Agent, and the other agents and lenders (the “Lenders”) which are or become a party thereto, and such Lenders, the undersigned represents and warrants as follows (each capitalized term used herein having the same meaning given to it in the Agreement unless otherwise specified):

(a) The representations and warranties of the Borrower contained in Article VII of the Agreement and in the Loan Documents and otherwise made in writing by or on behalf of the Borrower pursuant to the Agreement and the Loan Documents were true and correct when made, and are repeated at and as of the time of delivery hereof and are true and correct in all material respects at and as of the time of delivery hereof, except to the extent such representations and warranties are expressly limited to an earlier date or the Majority Lenders have expressly consented in writing to the contrary.

(b) The Borrower has performed and complied in all material respects with all agreements and conditions contained in the Agreement and in the Loan Documents required to be performed or complied with by it prior to or at the time of delivery hereof or specify default and describe.

(c) Since [_________ __], 200[_], no change has occurred, either in any case or in the aggregate, in the condition, financial or otherwise, of the Borrower or any Material Subsidiary which could reasonably be expected to have a Material Adverse Effect [or specify event].

(d) There exists no Default or Event of Default [or specify Default and describe].

(e) Attached hereto are the detailed computations necessary to determine whether the Borrower is in compliance with Section 9.01 as of the end of the [fiscal quarter][fiscal year] ending [ ].

(f) The representations and warranties of the Borrower contained in Section 8.14 of the Agreement were true and correct when made, and are repeated at and as of the time of delivery hereof and are true and correct in all material respects at and as of the time of delivery hereof.

(g) The representations and warranties of the Borrower contained in Section 8.12(a) of the Agreement were true and correct when made, and are repeated at and as of the time of delivery hereof and are true and correct in all material respects at and as of the time of

Exhibit B - 1

Houston 3921802v.12

delivery hereof. These representations and warranties specifically include that the Reserve Report dated as of December 31, 2008, is and was true and accurate, and prepared in accordance with procedures used in the immediately preceding December 31 Reserve Report.

EXECUTED AND DELIVERED this [ ] day of [ ].

ST. MARY LAND & EXPLORATION

COMPANY

By: __________________________

Name: __________________________

Title: __________________________

Exhibit B - 2

Houston 3921802v.12

EXHIBIT C

SECURITY INSTRUMENTS

1.	Reaffirmation Agreement dated as of April 10, 2008, by the Borrower in favor of the Administrative Agent.

2.	Reaffirmation Agreement dated as of even date herewith, by the Borrower in favor of the Administrative Agent.

3.	First Supplement and Amendment to Deed of Trust, Mortgage, Line of Credit Mortgage, Assignment, Security Agreement, Fixture Filing and Financing Statement dated effective as of January 27, 2003, from St. Mary Land & Exploration Company, et al.

Jurisdiction	File No.	Book/Page	Date Filed
Cameron Parish, LA	279314	MB275	01-31-03
Claiborne Parish, LA	406861	445/39	02-03-03
Iberia Parish, LA	03-1414	MB-A928	02-03-03
Lincoln Parish, LA	F44323	MB804/490	02-04-03
Pointe Coupee Parish, LA		MB324/No. 005	02-03-03
St. Mary Parish, LA	255274	MB939/427	01-31-03
Union Parish, LA	2003-00312605	548/15	01-31-03
Vermilion Parish, LA	20301199		01-31-03
Richland County, MT	516267	B178/584-624	01-31-03
Roosevelt County, MT	361851	604/142	02-03-03
Sheridan County, MT	459000	604/1307	01-31-03
Eddy County, NM	0301183	489/1185	01-31-03
Lea County, NM	33257	1202/609	02-03-03
Billings County, ND	119317	093/393	02-04-03
Bottineau County, ND	359181	295/83	02-04-03
McKenzie County, ND	344188		02-04-03
Williams County, ND	604707		02-05-03
Beaver County, OK	1-2003-000419	1094/492-519	02-04-03
Beckham County, OK	1-2003-000917	1763/414	02-03-03
Caddo County, OK	030894	2430/161	2-03-03
Canadian County, OK	2003003218	2680/51-79	2-03-03
Coal County, OK	14750	616/313-356	01-31-03

Exhibit C- 1

Houston 3921802v.12

Jurisdiction	File No.	Book/Page	Date Filed
Comanche County, OK	2003002051	3982/264-292	01-31-03
Custer County, OK	1-2003-000660	1192/496-538	02-03-03
Grady County, OK	1680	3456/472	02/03/03
Roger Mills County, OK	1-2003-000430	1700/66	02-03-03
Washita County, OK	526	955/504-870	02-03-03
Brazoria County, TX	03 006331		01-31-03
Coke County, TX	007140	161/288	02-03-03
Henderson County, TX	0001833	2264/001	01-31-03
Jefferson County, TX	2003003623		01-31-03
Limestone County, TX	030551	1103/829	02-03-03
Nueces County, TX	2003004978	24	01-31-03
Red River County, TX	22402	530/734	01-31-03
Runnels County, TX	215	217/174	02-04-03
Shelby County, TX	2003-490	955/228	01-31-03
Ward County, TX	196	735/430-453	1-31-03
Uintah County Recorder, UT	2003000753	825/763/788	01-31-03
Carbon County, WY	0902115	1032/0060	02-04-03

4.	Second Supplement and Amendment to Deed of Trust, Mortgage, Line of Credit Mortgage, Assignment, Security Agreement, Fixture Filing and Financing Statement dated effective as of April 16, 2003, from St. Mary Land & Exploration Company, et al.

Jurisdiction	File/Entry No.	Book/Page	Date Filed
Cameron Parish, LA	280347	278	4/25/03
Claiborne Parish, LA	407719	452/35	4-23-03
Pointe Coupee Parish,		328/104	4-23-03
St. Mary Parish, LA	256,817	949/140	4-23-03
Vermilion Parish, LA	20305083		4-29-03
Eddy County, NM		503/0917	5-08-03
Lea County, NM	37323	1220/841	4-28-03
Bottineau County, ND	359989	298/24	5-05-03

Exhibit C- 2

Houston 3921802v.12

Jurisdiction	File/Entry No.	Book/Page	Date Filed
Beckham County, OK	1-2003-004011	1772/286	4-25-03
Caddo County, OK	033653	2440/481-514	4-29-03
Coal County, OK	15617	619/74-129	4-28-03
Custer County, OK	1-2003-002720	1202/345-373	5-01-03
Grady County, OK	6012	3483-150	4-23-03
Roger Mills County, OK	2003-001893	1708/217-245	4-25-03
Washita County, OK	2132	960/895-939	4-25-03
Brazoria County, TX	03024211		4-24-03
Shelby County, TX	2003-1818	B-960-699-726	4-24-03
Carbon County, WY	0903151	B-1036/P-0061	4-25-03

5.	Deed of Trust, Mortgage, Line of Credit Mortgage, Assignment, Security Agreement, Fixture Filing and Financing Statement dated effective as of January 27, 2003, from St. Mary Land & Exploration Company, et al, covering the Burlington Properties.

Jurisdiction	File No.	Book/Page	Date Filed
Richland County, MT	516268	B178/625-694	01-31-03
Roosevelt County, MT	361852	604/143	02-03-03
Rosebud County, MT	0093439	103MG/573-628	02-04-03
Sheridan County, MT	459001	604/1351	01-31-03
Wibaux County, MT	0100404	31/394	02-03-03
Billings County, ND	119318	093/419	02-04-03
Bowman County, ND	158041		02-03-03
Burke County, ND	202024	174/41	02-04-03
Divide County, ND	224437	218M/224	02-03-03
Dunn County, ND	3007810	B137/1	02-04-03
Golden Valley County, ND	89737		02-04-03
McKenzie County, ND	344189		02-04-03
Stark County, ND	3021953		02-03-03

Exhibit C- 3

Houston 3921802v.12

6.	UCC-1 Financing Statement naming NPC, Inc., as Debtor, and Wachovia Bank, National Association, as Secured Party.

Jurisdiction	File No.	Book/Page	Date Filed
Colorado Secretary of State	20032011718 C		01-31-03

7.	First Supplement and Amendment to Deed of Trust, Mortgage, Line of Credit Mortgage, Assignment, Security Agreement, Fixture Filing and Financing Statement dated effective as of April 16, 2003, from St. Mary Land & Exploration Company, et al.

Jurisdiction	File No.	Book/Page	Date Filed
Richland County, MT	518181	180/307-350	4-25-03
Roosevelt County, MT	362400	604/207	4-25-03
Sheridan County, MT	459308	605/766	4-24-03
Billings County, ND	119518	94/115	4-25-03
Bowman County, ND	158346		4-24-03
Divide County, ND	224847	219M/146	5-27-03
Dunn County, ND	3008107	138/1 of 25	4-29-03
McKenzie County, ND	344998		5-02-03
Stark County, ND	3023766	/1 of 23	4-30-03

8.	Deed of Trust, Mortgage, Line of Credit Mortgage, Assignment, Security Agreement, Fixture Filing and Financing Statement dated effective as of April 16, 2003, from St. Mary Land & Exploration Company, et al.

Jurisdiction	File No.	Book/Page	Date Filed
Bienville Parish, LA	20031493	371/21	4-23-03
LaSalle Parish, LA	188236	262/292, 279/452	4-25-03
Carbon County, MT	306896		4-24-03
Glacier County, MT	252494	69/283	4-24-03
Powder River County, MT	128180	69/0546	4-24-03
Stillwater County, MT	312063		4-24-03
Toole County, MT	348946	66/741	4-24-03

Exhibit C- 4

Houston 3921802v.12

Jurisdiction	File No.	Book/Page	Date Filed
Ward County, ND	2817213	Pgs 1-54	4-25-03
Williams County, ND	605875	1-56	4-29-03
Renville County, ND	178019	171/293	4-25-03
Dewey County, OK	001261	1191/94	4-24-03
Stephens County, OK	000272	2820/272	5-07-03
Schleicher County, TX	080705	434/682	5-05-03
Galveston County, TX	2003025934	###-##-####	4-23-03
Campbell County, WY	815203	1862/418-531	4-25-03
Converse County, WY	892472	1219/800	5-08-03
Crook County, WY	561879	405/536-591	4-25-03
Fremont County, WY	2003-1242358		6-24-03
Hot Spring County, WY	449338	100/703-757	4-30-03
Johnson County, WY	013622	295/325-379	4-25-03
Lincoln County, WY	889463	518/747	4-24-03
Natrona County, WY	0715663	1-61	5-06-03
Niobrara County, WY	380587	413/0354	4-24-03
Sweetwater County, WY	1385265	0973/1730	5-02-03
Sublette County, WY	296777	100/83	4-25-03
Uinta County, WY	113005	795/417-468	4-24-03
Washakie County, WY	499528	93/769-820	4-24-03
Weston County, WY	659277	263/985	4-25-03

9.	Deed of Trust, Mortgage, Line of Credit Mortgage, Assignment, Security Agreement, Fixture Filing and Financing Statement dated effective as of April 16, 2003, from St. Mary Land & Exploration Company, et al.

Jurisdiction	File No.	Book/Page	Date Filed
Cheyenne County, CO	2003-221982	1-51	4-25-03
Moffat County, CO	2003L-1925	1 of 60	4-24-03
Harding County, SD	03-327	103 O &G/79-129	4-29-03
Nye County, NV	561302		4-24-03

Exhibit C- 5

Houston 3921802v.12

10.	Deed of Trust, Mortgage, Line of Credit Mortgage, Assignment, Security Agreement, Fixture Filing and Financing Statement dated effective as of May 4, 2004, from St. Mary Land & Exploration Company, et al.

Jurisdiction	File/Entry No.	Book/Page	Date Filed
Sheridan County, MT	460961	608/800	5-17-04
McKenzie County, ND	348516		5-14-04
Beckham County, OK	I-2004-004556	1811/653	5-14-04
Shelby County, TX	2004-2675	B-989/P-1	5-13-04

11.	Deed of Trust, Mortgage, Line of Credit Mortgage Assignment, Security Agreement, Fixture Filing and Financing Statement dated effective as of April 7, 2005 from St. Mary Land & Exploration Company to Wachovia Bank, National Association, as Administrative Agent.

Jurisdiction	File/Entry No.	Book/Page	Date Filed
Bossier Parish, LA	831932	1472	04-18-05
Caddo Parish, LA	1970675		04-19-05
Desoto Parish, LA	616921	319/1	04-14-05
Morehouse Parish, LA	193172	582/183	04-18-05
Natchitoches Parish, LA	M280911 228839	768/261 590/547	04-15-05
Webster Parish, LA	477794	602/772	04-15-05
Richland County, MT	529711	192/318-371	04-18-05
McKenzie County, ND	356243		04-25-05
Mountrail County, ND	315745	717/505	4-14-05
Alfalfa County, OK	031160	581/734-782	04-15-05
Beckham County, OK	I-2005-003117	1843/675-747	04-15-05
Blaine County, OK	1640	913/470-517	04-14-05
Carter County, OK	2005-004091	4285/68-141	04-14-05
Coal County, OK	027249	652/494-558	04-22-05
Ellis County, OK	I-A-009471	706/347-394	04-18-05

Exhibit C- 6

Houston 3921802v.12

Jurisdiction	File/Entry No.	Book/Page	Date Filed
Garfield County, OK	4125	1752/927	04-15-05
Grady County, OK	I-2005-005326	3720/91-141	04-15-05
Grant County, OK	608	562/192	04-14-05
Haskell County, OK	301537	681/101-157	04-14-05
Hughes County, OK	003075	1027/1-49	04-14-05
Latimer County, OK	I-2005-035223	653/178-228	04-14-05
LeFlore County, OK	3842	1552/446-491	04-14-05
Logan County, OK	3536	1851/45-92	04-14-05
Murray County, OK	I-2005-001180	767/1-48	04-14-05
Pittsburg County, OK	133088	1372/379-475	04-19-05
Roger Mills, OK	I-2005-003179	1789/349	5-12-05
Seminole County, OK	2563	2697/200-247	04-14-05
Washita County, OK	I-2005-002861	1009/597-644	04-15-05
Cass County, TX	37589		04-14-05
Gregg County, TX	200507947		04-14-05
Houston County, TX	051641		04-14-05
Marion County, TX	1250	697/334-381	04-14-05
Panola County, TX	100387	1262/467-514	04-14-05
Rusk County, TX	10774	254B/432-480	04-14-05
Smith County, TX	2005-R0017684	7765/818-866	04-14-05
Sutton County, TX	051971	337/352-399	04-14-05
Wheeler County, TX	15347	535/583-630	04-19-05
Albany County, WY	2005-2399		04-14-05
Park County, WY	2005-2693		04-18-05

12.	Supplement and Amendment to Deed of Trust, Mortgage, Line of Credit Mortgage, Assignment, Security Agreement, Fixture Filing and Financing Statement dated effective as of April 7, 2005, from St. Mary Land & Exploration Company, et al.

Jurisdiction	File/Entry No.	Book/Page	Date Filed
Bienville Parish, LA	20051586		4-14-05

Exhibit C- 7

Houston 3921802v.12

Jurisdiction	File/Entry No.	Book/Page	Date Filed
Claiborne Parish, LA	415336	502/128	4-14-05
Lincoln Parish, LA	063713	875/179	4-15-05
Union Parish, LA	2005-00326133	597/91	4-18-05
Billings County, ND	124015		6-27-05
Bottineau County, ND	365951		4-25-05
Bowman County, ND	161240		4-26-05
Burke County, ND	206034	178/309	4-25-05
Divide County, ND	230283	232M/638	5-6-05
Dunn County, ND	3013067	B-147/P-43	6-24-05
Golden Valley County, ND	92123		4-25-05
Stark County, ND	3037098		4-25-05
Williams County, ND	623256		4-19-05
Canadian County, OK	20058762	3049/641-665	4-18-05
Sweetwater County, WY	1439819	1025/559-78	4-19-05

13.	Deed of Trust, Mortgage, Line of Credit Mortgage Assignment, Security Agreement, Fixture Filing and Financing Statement dated effective as of February 20, 2007, from St. Mary Land & Exploration Company, et al.

Jurisdiction	File No.	Book/Page	Date Filed
Upton County, TX	00140457	782/61-120	2-26-07
Midland County, TX	4234	OR/02818/71	2-23-07

14.	Deed of Trust, Mortgage, Line of Credit Mortgage Assignment, Security Agreement, Fixture Filing and Financing Statement dated effective as of February 1, 2008, from St. Mary Land & Exploration Company

Jurisdiction	File No.	Book/Page	Date Filed
Dimmit County, TX	9830	345/665	4/23/08
Webb County, TX	995989	2540/142	3/4/08

Exhibit C- 8

Houston 3921802v.12

15.	UCC Financing Statement with St. Mary Land & Exploration Company as debtor and Wachovia Bank, National Association, as Administrative Agent, as secured party, with respect to item 15 above

Jurisdiction	File No.	Book/Page	Date Filed
Secretary of State of Delaware	2008 0765394		3/3/08

16.	Supplement and Amendment to Deed of Trust, Mortgage, Line of Credit Mortgage, Assignment, Security Agreement, Fixture Filing and Financing Statement dated effective as of April 14, 2009, from St. Mary Land & Exploration Company

Jurisdiction	File No.	Book/Page	Date Filed
Cheyenne County, CO
Moffat County, CO
Bienville Parish, LA
Bossier Parish, LA
Caddo Parish, LA
Cameron Parish, LA
Claiborne Parish, LA
Desoto Parish, LA
Iberia Parish, LA
LaSalle Parish, LA
Lincoln Parish, LA
Morehouse Parish, LA
Natchitoches Parish, LA
Pointe Coupee Parish, LA
St. Mary Parish, LA
Union Parish, LA
Vermilion Parish, LA
Webster Parish, LA
Carbon County, MT
Glacier County, MT
Powder River County, MT

Exhibit C- 9

Houston 3921802v.12

Richland County, MT
Roosevelt County, MT
Rosebud County, MT
Sheridan County, MT
Stillwater County, MT
Toole County, MT
Wibaux County, MT
Eddy County, NM
Lea County, NM
Billings County, ND
Bottineau County, ND
Bowman County, ND
Burke County, ND
Divide County, ND
Dunn County, ND
Golden Valley County, ND
McKenzie County, ND
Mountrail County, ND
Renville County, ND
Stark County, ND
Ward County, ND
Williams County, ND
Nye County, NV
Alfalfa County, OK
Beaver County, OK
Beckham County, OK
Blaine County, OK
Caddo County, OK
Canadian County, OK
Carter County, OK
Coal County, OK

Exhibit C- 10

Houston 3921802v.12

Comanche County, Ok
Custer County, OK
Dewey County, OK
Ellis County, OK
Garfield County, OK
Grady County, OK
Grant County, OK
Haskell County, OK
Hughes County, OK
Latimer County, OK
LeFlore County, OK
Logan County, OK
Murray County, OK
Pittsburg County, OK
Roger Mills County, OK
Seminole County, OK
Stephens County, OK
Washita County, OK
Harding County, SD
Brazoria County, TX
Cass County, TX
Coke County, TX
Dimmit County, TX
Galveston County, TX
Gregg County, TX
Henderson County, TX
Houston County, TX
Jefferson County, TX
Limestone County, TX
Marion County, TX
Midland County, TX

Exhibit C- 11

Houston 3921802v.12

Nueces County, TX
Panola County, TX
Red River County, TX
Runnels County, TX
Rusk County, TX
Schleicher County, TX
Shelby County, TX
Smith County, TX
Sutton County, TX
Upton County, TX
Ward County, TX
Webb County, TX
Wheeler County, TX
Uintah County, UT
Albany County, WY
Campbell County, WY
Carbon County, WY
Converse County, WY
Crook County, WY
Fremont County, WY
Hot Springs County, WY
Johnson County, WY
Lincoln County, WY
Natrona County, WY
Niobrara County, WY
Park County, WY
Sweetwater County, WY
Sublette County, WY
Uinta County, WY
Washakie County, WY
Weston County, WY

Exhibit C- 12

Houston 3921802v.12

17.	UCC Financing Statement with St. Mary Land & Exploration Company as debtor and Wachovia Bank, National Association, as Administrative Agent, as secured party, with respect to item 16 above

Jurisdiction	File No.	Book/Page	Date Filed
Secretary of State of Delaware

Exhibit C- 13

Houston 3921802v.12

EXHIBIT D

FORM OF ASSIGNMENT AND ASSUMPTION

Reference is made to the Third Amended and Restated Credit Agreement dated as of [___________ __], 2009 (as the same may from time to time be amended, modified, supplemented or restated, the “Credit Agreement”), among St. Mary Land & Exploration Company, the Lenders named therein and Wachovia Bank, National Association, as Administrative Agent for the Lenders. Terms defined in the Credit Agreement are used herein with the same meanings.

The Assignor named on the reverse hereof hereby sells and assigns, without recourse, to the Assignee named on the reverse hereof, and the Assignee hereby purchases and assumes, without recourse, from the Assignor, effective as of the Assignment Date set forth on the reverse hereof, the interests set forth on the reverse hereof (the “Assigned Interest”) in the Assignor’s rights and obligations under the Credit Agreement, including, without limitation, the interests set forth on the reverse hereof in the Commitment of the Assignor on the Assignment Date and Loans owing to the Assignor which are outstanding on the Assignment Date, together with the participations in Letters of Credit and LC Disbursements held by the Assignor on the Assignment Date, but excluding accrued interest and fees to and excluding the Assignment Date. The Assignee hereby acknowledges receipt of a copy of the Credit Agreement. From and after the Assignment Date (i) the Assignee shall be a party to and be bound by the provisions of the Credit Agreement and, to the extent of the Assigned Interest, have the rights and obligations of a Lender thereunder and (ii) the Assignor shall, to the extent of the Assigned Interest, relinquish its rights and be released from its obligations under the Credit Agreement.

This Assignment and Assumption is being delivered to the Administrative Agent together with (i) if the Assignee is a Foreign Lender, any documentation required to be delivered by the Assignee pursuant to Section 5.03(e) of the Credit Agreement, duly completed and executed by the Assignee, and (ii) if the Assignee is not already a Lender under the Credit Agreement, an Administrative Questionnaire in the form supplied by the Administrative Agent, duly completed by the Assignee. The Assignor shall pay the fee payable to the Administrative Agent pursuant to Section 12.04(b) of the Credit Agreement.

This Assignment and Assumption shall be governed by and construed in accordance with the laws of the State of Texas.

Date of Assignment:

Legal Name of Assignor:

Legal Name of Assignee:

Assignee’s Address for Notices:

Effective Date of Assignment

(“Assignment Date”):

Exhibit D- 1

Houston 3921802v.12

Facility	Principal Amount Assigned	Percentage Assigned of Facility/Commitment (set forth, to at least 8 decimals, as a percentage of the Facility and the aggregate Commitments of all Lenders thereunder)
Commitment Assigned:	$	%
Loans:

The terms set forth above and on the reverse side hereof are hereby agreed to:

[Name of Assignor], as Assignor

By:______________________________

Name:

Title:

[Name of Assignee], as Assignee

By: ______________________________

Name:

Title:

Exhibit D- 2

Houston 3921802v.12

The undersigned hereby consent to the within assignment:1

St. Mary Land & Exploration Company

Wachovia Bank, National Association, as Administrative Agent,

By: ______________________ By: __________________________

Name: Name:

Title: Title:]

_____________________________

1 Consents to be included to the extent required by Section 9.04(b) of the Credit Agreement.

Exhibit D- 3

Houston 3921802v.12

EXHIBIT E

FORM OF COMMITMENT INCREASE CERTIFICATE

[ ], 200[ ]

To: Wachovia Bank, National Association,

as Administrative Agent

The Borrower, the Administrative Agent and the other Agents and certain Lenders have heretofore entered into a Third Amended and Restated Credit Agreement, dated as of [_________ __], 2009, as amended from time to time (the “Credit Agreement”). Capitalized terms not otherwise defined herein shall have the meaning given to such terms in the Credit Agreement.

This Commitment Increase Certificate is being delivered pursuant to Section 2.06(c) of the Credit Agreement.

Please be advised that the undersigned has agreed to increase its Commitment under the Credit Agreement effective [ ], 200[ ] from $[ ] to $[ ] and (b) that it shall continue to be a party in all respect to the Credit Agreement and the other Loan Documents.

The [Borrower/Lender] shall pay the fee payable to the Administrative Agent pursuant to Section 2.06(c)(ii) of the Credit Agreement.

Very truly yours,

[ ]

By:

Name:

Title:

Exhibit E- 1

Houston 3921802v.12

Accepted and Agreed:

Wachovia Bank, National Association,

as Administrative Agent

By: _______________________________

Name: ____________________________

Title: _____________________________

Accepted and Agreed:

St. Mary Land & Exploration Company

By: _______________________________

Name: ____________________________

Title: _____________________________

Exhibit E- 2

Houston 3921802v.12

EXHIBIT F

FORM OF ADDITIONAL LENDER CERTIFICATE

[ ], 200[ ]

To: Wachovia Bank, National Association

as Administrative Agent

The Borrower, the Administrative Agent and the other Agents and certain Lenders have heretofore entered into a Third Amended and Restated Credit Agreement, dated as of [_______ __], 2009, as amended from time to time (the “Credit Agreement”). Capitalized terms not otherwise defined herein shall have the meaning given to such terms in the Credit Agreement.

This Additional Lender Certificate is being delivered pursuant to Section 2.06(c) of the Credit Agreement.

Please be advised that the undersigned has agreed (a) to become a Lender under the Credit Agreement effective [ ], 200[ ] with a Commitment of $[ ] and (b) that it shall be a party in all respect to the Credit Agreement and the other Loan Documents.

This Additional Lender Certificate is being delivered to the Administrative Agent together with (i) if the Additional Lender is a Foreign Lender, any documentation required to be delivered by such Additional Lender pursuant to Section 5.03(e) of the Credit Agreement, duly completed and executed by the Additional Lender, and (ii) an Administrative Questionnaire in the form supplied by the Administrative Agent, duly completed by the Additional Lender. The [Borrower/Additional Lender] shall pay the fee payable to the Administrative Agent pursuant to Section 2.06(c)(ii) of the Credit Agreement.

Very truly yours,

[ ]

By: ______________________________

Name: ___________________________

Title: ____________________________

Exhibit F- 1

Houston 3921802v.12

Accepted and Agreed:

Wachovia Bank, National Association,

as Administrative Agent

By: _____________________________

Name: __________________________

Title: ___________________________

Accepted and Agreed:

St. Mary Land & Exploration Company

By: _____________________________

Name: __________________________

Title: ___________________________

Exhibit F- 2

Houston 3921802v.12

EXHIBIT G

REAFFIRMATION AGREEMENT

1. This Reaffirmation Agreement (this “Reaffirmation”) dated as of [_______ __], 2009, is made (a) in connection with, and as a condition to, that certain Third Amended and Restated Credit Agreement dated of even date herewith (as may be amended, restated or otherwise modified from time to time, the “Credit Agreement”) among ST. MARY LAND & EXPLORATION COMPANY, a Delaware corporation (the “Borrower”); each of the Lenders from time to time party thereto; WACHOVIA BANK, NATIONAL ASSOCIATION (in its individual capacity, “Wachovia”), as administrative agent for the Lenders (in such capacity, together with its successors in such capacity, the “Administrative Agent”); and the other parties and agents signatory thereto and (b) for the benefit of the respective secured parties and beneficiaries described in the Security Instruments (as defined below). Capitalized terms used herein but not defined herein shall have the meanings ascribed to them in the Credit Agreement.

2. The Borrower has executed certain Loan Documents to secure the Indebtedness, including, without limitation, that certain Amended and Restated Pledge and Security Agreement dated as of April 7, 2005, by the Borrower in favor of the Administrative Agent (as the same may be amended, supplemented, restated or otherwise modified from time to time, the “Pledge Agreement”), that certain Deed of Trust, Mortgage, Line of Credit Mortgage, Assignment, Security Agreement, Fixture Filing and Financing Statement dated as of April 7, 2005, from the Borrower to Jay Chernosky, as Trustee (“Trustee”), and to the Administrative Agent (the “Deed of Trust”) and that certain Supplement and Amendment to Deed of Trust, Mortgage, Line of Credit Mortgage, Assignment, Security Agreement, Fixture Filing and Financing Statement dated as of April 7, 2005, by the Borrower to the Trustee, for the benefit of the Administrative Agent (the “Deed of Trust Supplement”).

3. The Borrower (a) has reviewed the Credit Agreement, (b) agrees that according to its terms its obligations (and the security interests granted by it) under the Pledge Agreement, Deed of Trust, Deed of Trust Supplement and each such other Loan Document to which the Borrower is a party (collectively, the “Security Instruments”) will continue in full force and effect to secure the Indebtedness, and, as the same may be amended, supplemented, or otherwise modified, and such other amounts in accordance with the terms of the Security Instruments, (c) acknowledges, represents, warrants and agrees that the liens and security interests created by it pursuant to the Pledge Agreement, Deed of Trust, Deed of Trust Supplement and each other Security Instrument are valid and subsisting and create a first priority perfected security interest to secure the Indebtedness, (d) ratifies and affirms its obligations under, and acknowledges, renews and extends its continued liability under, the Pledge Agreement, Deed of Trust, Deed of Trust Supplement and each other Security Instrument to which it is a party and agrees that the Pledge Agreement, Deed of Trust, Deed of Trust Supplement and each other Security Instrument to which it is a party remain in full force and effect, and (e) represents and warrants to the Lenders that as of the date hereof: (i) all of the representations and warranties contained in the Pledge Agreement, Deed of Trust, Deed of Trust Supplement and each other Security Instrument to which it is a party are true and correct, except (x) to the extent any such representations and warranties are expressly limited to an earlier date, in which case, such representations and

Exhibit G- 1

Houston 3921802v.12

warranties shall continue to be true and correct as of such specified earlier date and (y) except for any changes in the facts or circumstances represented thereby not prohibited by the Pledge Agreement, Deed of Trust, Deed of Trust Supplement, each other Security Instrument or the Existing Credit Agreement, (ii) no Default has occurred and is continuing (iii) since the Effective Date, there has been no event, development or circumstance that has had or could reasonably be expected to have a Material Adverse Effect.

4. Each of the Pledge Agreement, Deed of Trust, Deed of Trust Supplement and each other Security Instrument remains in full force and effect as executed by the parties hereto, and nothing herein shall act as a waiver of any of the Administrative Agent’s or other Secured Parties’ rights under the Pledge Agreement, Deed of Trust, Deed of Trust Supplement or any other Security Instrument.

5. This Reaffirmation is a Loan Document for the purposes of the provisions of the other Loan Documents.

6. This Reaffirmation is a Security Instrument for the purposes of the provisions of the other Security Instruments

7. This Reaffirmation shall be governed by and construed and enforced in accordance with the laws of the State of Texas.

8. This Reaffirmation may be signed in any number of counterparts, each of which shall be an original. Delivery of an executed signature page to this Reaffirmation by facsimile transmission shall be as effective as delivery of a manually signed counterpart of this Reaffirmation.

9. THIS REAFFIRMATION AND THE OTHER LOAN DOCUMENTS REPRESENT THE FINAL AGREEMENT AMONG THE PARTIES WITH RESPECT TO THE SUBJECT MATTER HEREOF AND MAY NOT BE CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS, OR SUBSEQUENT ORAL AGREEMENTS OF THE PARTIES.

10. THERE ARE NO UNWRITTEN ORAL AGREEMENTS AMONG THE PARTIES.

[The rest of this page has been left blank intentionally]

Exhibit G- 2

Houston 3921802v.12

The Borrower has caused this Reaffirmation to be duly executed as of the date first above written.

BORROWER

ST. MARY LAND & EXPLORATION COMPANY

By: /s/ MILAM RANDOLPH PHARO

Name: ______________________________

Title: _______________________________

Exhibit G- 3

Houston 3921802v.12

Accepted by:

WACHOVIA BANK, NATIONAL ASSOCIATION, as Administrative Agent

By: /s/ LEANNE PHILLIPS

Name: Leanne Phillips

Title: Director

Exhibit G- 4

Houston 3921802v.12

EXHIBIT H

FORM OF LEGAL OPINION OF BALLARD SPAHR ANDREWS & INGERSOLL, LLP

Exhibit H- 1

Houston 3921802v.12

SCHEDULE 7.05

LITIGATION

None.

Schedule 7.05 - 1

Houston 3921802v.12

SCHEDULE 7.15

SUBSIDIARIES AND PARTNERSHIPS; NON-MATERIAL SUBSIDIARIES

Material Subsidiaries	Jurisdiction of Organization	Organizational Identification Number	Principal Place of Business and Chief Executive Office	Owner	Percentage Owned
None.
Non-Material Subsidiaries

Belring GP LLC	Delaware			Borrower	100%
Box Church Gas Gathering LLC	Colorado			Borrower	58.6754%
Energy Leasing, Inc.	Oklahoma			Borrower	100%
Four Winds Marketing LLC	Colorado			Borrower	100%
Hilltop Investments	Colorado			Borrower	50%
SMT Texas LLC	Colorado			Borrower	100%
St. Mary Land & Exploration Acquisition, LLC	Delaware			Borrower	100%
St. Mary Energy Louisiana LLC	Delaware			Borrower	100%
St. Mary Land East Texas L.P.	Texas			SMT Texas LLC Borrower	99% 1%
Sycamore Gas System	Oklahoma			Borrower	3.11%
Trinity River Services LTD	Texas			Borrower	21%
Parish Ventures	Colorado			Borrower	50%

Schedule 7.15 - 1

Houston 3921802v.12

SCHEDULE 7.19

GAS IMBALANCES

None.

Schedule 7.19 - 1

Houston 3921802v.12

SCHEDULE 7.20

MARKETING CONTRACTS

None.

Schedule 7.20- 1

Houston 3921802v.12

SCHEDULE 7.21

SWAP AGREEMENTS

St. Mary Land & Exploration Company
Hedges "In-Place"
As of March 30, 2009

CounterParty	Contract Date	Contract #	Price Index	Area	Contract Start	Contract End	Monthly Volumes	Remaining Yearly Volumes	% of Hedges	Fixed Price	Estimated Market Price	MtM Value at 3/30/09

GAS SWAPS

BNP Paribas	02/29/08	172761	IF CIG	Rockies	01/01/09	12/31/09	50,000	450,000		$7.03	$2.87	1,873,700
BNP Paribas	05/05/08	180277	IF HSC	Arklatex	06/01/08	02/28/11	43,333	390,000		$9.96	$3.95	2,342,816
							93,333	840,000	5.30%

Comerica	07/30/07	ESWP253	IF HSC	Gulf Coast	01/01/09	12/31/09	100,000	900,000		$8.19	$3.97	3,800,902
							100,000	900,000	5.67%

J Aron & Co	07/30/07	737564622	IF HSC	Gulf Coast	01/01/09	12/31/09	110,000	990,000		$8.25	$3.97	4,235,760
J Aron & Co	05/19/06	886126894	IF PEPL	MidCon	01/01/09	06/30/09	140,000	420,000		$6.98	$2.67	1,809,467
J Aron & Co	06/15/06	886819898	IF CIG	Rockies	01/01/09	06/30/09	110,000	330,000		$6.28	$2.39	1,285,034
J Aron & Co	12/22/06	892369629	IF NGPL	MidCon	01/01/09	12/31/09	34,444	310,000		$6.85	$3.32	1,095,497
J Aron & Co	03/03/08	904120535	IF HSC	ArkLaTex	04/01/08	12/31/09	53,333	480,000		$8.75	$3.99	2,282,908
							447,777	2,530,000	15.95%

JPMorgan	05/19/06	2594706	IF PEPL	MidCon	01/01/09	06/30/09	180,000	540,000		$7.24	$2.68	2,464,935
JPMorgan	06/20/06	2715473	IF CIG	Rockies	01/01/09	07/31/09	150,000	600,000		$7.48	$2.47	3,006,479
JPMorgan	11/01/06	4430129	IF El Paso Permian	Permian	01/01/09	12/31/09	100,000	900,000		$6.86	$3.32	3,183,623
JPMorgan	01/09/07	4962486	IF ANR OK	MidCon	01/01/09	12/31/09	34,444	310,000		$7.16	$3.34	1,183,538
JPMorgan	07/30/07	9673554	IF HSC	Gulf Coast	01/01/09	12/31/09	160,000	1,440,000		$8.27	$3.97	6,196,195
JPMorgan	02/26/08	13531195	IF ANR OK	MidCon	01/01/09	06/30/09	150,000	450,000		$7.60	$2.79	2,164,591

Schedule 7.21- 1

Houston 3921802v.12

CounterParty	Contract Date	Contract #	Price Index	Area	Contract Start	Contract End	Monthly Volumes	Remaining Yearly Volumes	% of Hedges	Fixed Price	Estimated Market Price	MtM Value at 3/30/09
							774,444	4,240,000	26.73%

Key Bank	07/30/07	183268	IF HSC	Gulf Coast	01/01/08	07/31/09	72,500	290,000		$7.98	$3.66	1,252,909
Key Bank	08/10/07	184037	IF PEPL	MidCon	01/01/08	08/31/09	180,000	900,000		$7.33	$2.96	3,935,840
							252,500	1,190,000	7.50%

Wachovia	03/07/07	N151732	IF HSC	Gulf	03/01/09	12/31/09	77,778	700,000		$7.47	$3.94	2,467,893
							77,778	700,000	4.41%

Wells Fargo	07/31/07	207849	IF HSC	Gulf Coast	08/01/09	12/31/09	100,000	500,000		$8.35	$4.22	2,065,789
Wells Fargo	02/20/08	314016	IF HSC	MidCon	01/01/09	12/31/09	256,667	2,310,000		$8.32	$3.93	10,135,271
Wells Fargo	03/17/08	323740	NYMEX HH	Gulf Coast	01/01/09	12/31/09	110,000	880,000		$8.71	$3.81	4,308,809
Wells Fargo	03/25/09	500075	NYMEX HH		07/01/09	12/31/09	75,000	450,000		$5.28	$5.28	0	*
Wells Fargo	03/25/09	500061	IF CENTERPOINT		07/01/09	12/31/09	220,000	1,320,000		$4.15	$4.15	0	*
							761,667	5,460,000	34.43%

Total GAS SWAPS - 2009							1,762,222	15,860,000	100.00%	$7.01	$4.01	61,091,956

BNP Paribas	05/05/08	180277	IF HSC	Arklatex	06/01/08	02/28/11	30,000	360,000		$9.61	$5.51	1,474,916
							30,000	360,000	2.23%

Comerica	07/30/07	ESWP253	IF HSC	Gulf Coast	01/01/10	08/31/10	100,000	800,000		$8.16	$5.36	2,240,283
							100,000	800,000	4.95%

J Aron & Co	07/30/07	737564622	IF HSC	Gulf Coast	01/01/10	04/30/10	110,000	440,000		$8.67	$5.26	1,500,320
J Aron & Co	12/22/06	892369629	IF NGPL	MidCon	01/01/10	02/28/10	30,000	60,000		$7.60	$5.00	155,877
							140,000	500,000	3.09%

JPMorgan	11/01/06	4430129	IF El Paso Permian	Permian	01/01/10	12/31/10	90,833	1,090,000		$6.79	$5.10	1,839,603
JPMorgan	01/09/07	4962486	IF ANR OK	MidCon	01/01/10	02/28/10	30,000	60,000		$7.98	$5.04	175,964
JPMorgan	07/30/07	9673554	IF HSC	Gulf Coast	01/01/10	08/31/10	160,000	1,280,000		$8.23	$5.36	3,675,958
							280,833	2,430,000	15.03%

Schedule 7.21- 2

Houston 3921802v.12

CounterParty	Contract Date	Contract#	Price Index	Area	Contract Start	Contract End	Monthly Volumes	Remaining Yearly Volumes	% of Hedges	Fixed Price	Estimated Market Price	MtM Value at 3/30/09

Key Bank	03/25/09	231621	IF NGPL	MidCon	01/01/10	12/31/11	77,500	930,000		$5.37	$5.37	0	*
							77,500	930,000	5.75%

Wachovia	03/07/07	N151732	IF HSC	Gulf	01/01/10	02/28/10	70,000	140,000		$8.37	$5.25	435,783
							70,000	140,000	0.87%

Wells Fargo	07/31/07	207849	IF HSC	Gulf Coast	01/01/10	08/31/10	100,000	800,000		$8.12	$5.36	2,208,719
Wells Fargo	02/20/08	314016	IF HSC	MidCon	01/01/10	12/31/10	188,333	2,260,000		$8.42	$5.48	6,658,711
Wells Fargo	03/17/08	323740	NYMEX HH	Gulf Coast	01/01/10	12/31/10	120,000	1,440,000		$8.66	$5.88	4,005,819
Wells Fargo	03/25/09	500075	NYMEX HH		01/01/10	12/31/10	192,500	2,310,000		$6.18	$6.18	0	*
Wells Fargo	03/25/09	500061	IF CENTERPOINT		01/01/10	12/31/10	350,000	4,200,000		$5.32	$5.32	0	*
							950,833	11,010,000	68.09%

Total GAS SWAPS - 2010							1,347,500	16,170,000	100.00%	$4.75	$3.24	24,371,953

BNP Paribas	05/05/08	180277	IF HSC	Arklatex	06/01/08	02/28/11	20,000	40,000		$9.98	$6.49	139,634
							20,000	40,000	0.70%

JPMorgan	11/01/06	4430129	IF El Paso Permian	Permian	01/01/11	10/31/11	88,000	880,000		$6.34	$5.64	612,332
							88,000	880,000	15.41%

Key Bank	03/25/09	231621	IF NGPL	MidCon	01/01/11	12/31/11	40,000	480,000		$5.98	$5.98	0	*
							40,000	480,000	8.41%

Wells Fargo	02/20/08	314016	IF HSC	MidCon	01/01/11	12/31/11	160,000	320,000		$8.89	$6.46	775,023
Wells Fargo	03/25/09	500075	NYMEX HH		01/01/11	12/31/11	177,500	2,130,000		$6.72	$6.72	0	*
Wells Fargo	03/25/09	500061	IF CENTERPOINT		01/01/11	12/31/11	155,000	1,860,000		$5.96	$5.96	0	*
							492,500	4,310,000	75.48%

Total GAS SWAPS - 2011							475,833	5,710,000	100.00%	$2.05	$1.78	1,526,989

Schedule 7.21- 3

Houston 3921802v.12

CounterParty	Contract Date	Contract #	Price Index	Area	Contract Start	Contract End	Monthly Volumes	Remaining Yearly Volumes	% of Hedges	Fixed Price	Estimated Market Price	MtM Value at 3/30/09

GAS COLLARS

BNP Paribas	10/12/05	93594 (FLOOR)	PEPL	MidCon	01/01/09	12/31/09	152,778	1,375,000		$5.30	$2.12	2,916,051
BNP Paribas	10/12/05	93594 (CAP)	PEPL	MidCon	01/01/09	12/31/09	(152,778)	(1,375,000)		$9.20	($0.01)	(12,416)
							152,778	1,375,000	20.18%

Comerica	10/13/05	ECAP0220 (FLOOR)	PEPL	MidCon	01/01/09	12/31/09	155,000	1,395,000		$5.300	$2.12	2,961,322
Comerica	10/13/05	ECAP0220 (CAP)	PEPL	MidCon	01/01/09	12/31/09	(155,000)	(1,395,000)		$9.390	($0.01)	(11,175)
							155,000	1,395,000	20.47%

JP Morgan	10/10/05	1568646 (FLOOR)	CIG	Rockies	01/01/09	12/31/09	200,000	1,800,000		$4.75	$1.99	3,577,286
JP Morgan	10/10/05	1568646 (CAP)	CIG	Rockies	01/01/09	12/31/09	(200,000)	(1,800,000)		$8.82	($0.01)	(10,358)
JP Morgan	10/12/05	1589334 (FLOOR)	NYMEX HH	Gulf Coast	01/01/09	12/31/09	30,000	240,000		$6.00	$2.14	513,946
JP Morgan	10/12/05	1589334 (CAP)	NYMEX HH	Gulf Coast	01/01/09	12/31/09	(30,000)	(240,000)		$10.35	($0.02)	(5,092)
							230,000	2,040,000	29.93%

Wachovia	10/11/05	1258100 (FLOOR)	PEPL	MidCon	01/01/09	12/31/09	152,778	1,375,000		$5.300	$2.12	2,916,051
Wachovia	10/11/05	1258100 (CAP)	PEPL	MidCon	01/01/09	12/31/09	(152,778)	(1,375,000)		$9.170	($0.01)	(12,641)
							152,778	1,375,000	20.18%

Wells Fargo	10/12/05	COP2506 (FLOOR)	HSC	Arklatex	01/01/09	12/31/09	70,000	630,000		$5.570	$1.78	1,122,403
Wells Fargo	10/12/05	COP2506 (CAP)	HSC	Arklatex	01/01/09	12/31/09	(70,000)	(630,000)		$9.490	($0.02)	(10,939)
							70,000	630,000	9.24%

Total GAS COLLARS - 2009							757,222	6,815,000	100.00%			13,944,438

Comerica	10/12/05	ECAP0222 (FLOOR)	PEPL	MidCon	01/01/10	12/31/10	100,000	1,200,000		$5.31	$1.07	1,285,152
Comerica	10/12/05	ECAP0222 (CAP)	PEPL	MidCon	01/01/10	12/31/10	(100,000)	(1,200,000)		$7.60	($0.28)	(336,610)

Schedule 7.21- 4

Houston 3921802v.12

CounterParty	Contract Date	Contract #	Price Index	Area	Contract Start	Contract End	Monthly Volumes	Remaining Yearly Volumes	% of Hedges	Fixed Price	Estimated Market Price	MtM Value at 3/30/09
Comerica	10/12/05	ECAP0221 (FLOOR)	NYMEX HH	Gulf Coast	01/01/10	12/31/10	20,000	240,000		$6.00	$1.11	266,363
Comerica	10/12/05	ECAP0221 (CAP)	NYMEX HH	Gulf Coast	01/01/10	12/31/10	(20,000)	(240,000)		$8.38	($0.39)	(93,571)
							120,000	1,440,000	18.40%

JP Morgan	10/10/05	1568647 (FLOOR)	CIG	Rockies	01/01/10	12/31/10	170,000	2,040,000		$4.85	$0.98	2,002,445
JP Morgan	10/10/05	1568647 (CAP)	CIG	Rockies	01/01/10	12/31/10	(170,000)	(2,040,000)		$7.08	($0.26)	(526,554)
JP Morgan	10/13/05	1591124 (FLOOR)	PEPL	MidCon	01/01/10	12/31/10	160,000	1,920,000		$5.31	$1.07	2,056,243
JP Morgan	10/13/05	1591124 (CAP)	PEPL	MidCon	01/01/10	12/31/10	(160,000)	(1,920,000)		$7.69	($0.27)	(519,657)
							330,000	3,960,000	50.61%

Wachovia	10/12/05	1266587 (FLOOR)	HSC	Arklatex	01/01/10	12/31/10	50,000	600,000		$5.570	$1.02	613,125
Wachovia	10/12/05	1266587 (CAP)	HSC	Arklatex	01/01/10	12/31/10	(50,000)	(600,000)		$7.880	($0.36)	(216,546)
							50,000	600,000	7.67%

Wells Fargo	10/11/05	COP2507 (FLOOR)	PEPL	MidCon	01/01/10	12/31/10	152,083	1,825,000		$5.300	$1.06	1,942,878
Wells Fargo	10/11/05	COP2507 (CAP)	PEPL	MidCon	01/01/10	12/31/10	(152,083)	(1,825,000)		$7.540	($0.29)	(524,993)
							152,083	1,825,000	23.32%

Total GAS COLLARS - 2010							652,083	7,825,000	100.00%			5,948,275

BNP	10/10/05	93595 (FLOOR)	CIG	Rockies	01/01/11	12/31/11	150,000	1,800,000		$5.00	$0.79	1,422,019
BNP	10/10/05	93595 (CAP)	CIG	Rockies	01/01/11	12/31/11	(150,000)	(1,800,000)		$6.32	($0.74)	(1,323,435)
							150,000	1,800,000	27.17%

Comerica	10/12/05	ECAP0223 (FLOOR)	NYMEX HH	Gulf Coast	01/01/11	12/31/11	10,000	120,000		$6.00	$0.91	109,040
Comerica	10/12/05	ECAP0223 (CAP)	NYMEX HH	Gulf Coast	01/01/11	12/31/11	(10,000)	(120,000)		$7.25	($1.00)	(119,409)
							10,000	120,000	1.81%

Schedule 7.21- 5

Houston 3921802v.12

CounterParty	Contract Date	Contract #	Price Index	Area	Contract Start	Contract End	Monthly Volumes	Remaining Yearly Volumes	% of Hedges	Fixed Price	Estimated Market Price	MtM Value at 3/30/09

JP Morgan	10/13/05	1591128 (FLOOR)	PEPL	MidCon	01/01/11	12/31/11	200,000	2,400,000		$5.31	$0.83	1,983,604
JP Morgan	10/13/05	1591128 (CAP)	PEPL	MidCon	01/01/11	12/31/11	(200,000)	(2,400,000)		$6.58	($0.82)	(1,959,506)
JP Morgan	10/12/05	1589331 (FLOOR)	HSC	Arklatex	01/01/11	12/31/11	40,000	480,000		$5.57	$0.80	385,466
JP Morgan	10/12/05	1589331 (CAP)	HSC	Arklatex	01/01/11	12/31/11	(40,000)	(480,000)		$6.77	($0.98)	(468,773)
							240,000	2,880,000	43.47%

Wachovia	10/11/05	1258101 (FLOOR)	PEPL	MidCon	01/01/11	12/31/11	152,083	1,825,000		$5.30	$0.82	1,499,868
Wachovia	10/112005	1258101 (CAP)	PEPL	MidCon	01/01/11	12/31/11	(152,083)	(1,825,000)		$6.42	($0.86)	(1,568,252)
							152,083	1,825,000	27.55%

Total GAS COLLARS - 2011							552,083	6,625,000	100.00%			(39,378)

Oil SWAPS

BNP Paribas	10/12/06	118518	NYMEX	Permian	01/01/09	09/30/09	1,000	6,045		$66.38	$53.24	79,449
BNP Paribas	10/26/06	119702	NYMEX	Permian	01/01/09	12/31/09	20,000	180,909		$67.35	$55.52	2,139,505
BNP Paribas	12/21/06	124753	NYMEX	Permian	01/01/09	12/31/09	2,000	18,091		$68.06	$55.45	228,040
BNP Paribas	10/27/06	119812	NYMEX	Permian	01/01/09	12/31/09	10,000	90,455		$67.56	$55.48	1,093,072
							33,000	295,500	25.36%

Comerica	8/3/2006	ESWP237	NYMEX	Permian	01/01/09	09/30/09	2,000	12,091		$74.49	$51.94	272,658
Comerica	11/6/2006	ESWP247	NYMEX	Permian	01/01/09	12/31/09	18,000	162,818		$67.25	$55.53	1,908,570
Comerica	3/5/2008	ESWP273	NYMEX	Permian	04/01/08	12/31/09	17,667	159,727		$97.13	$53.13	7,028,286
							37,667	334,636	28.72%

J Aron & Co	09/25/06	889669056	NYMEX	Permian	01/01/09	09/30/09	2,000	12,091		$65.03	$53.42	140,400
							2,000	12,091	1.04%

JPMorgan	10/27/2006	4389629	NYMEX	Permian	01/01/09	12/31/09	8,000	72,364		$67.76	$55.46	890,140
JPMorgan	10/27/06	14481873	NYMEX	Permian	01/01/09	12/31/09	23,000	208,045		$67.52	$55.49	2,502,366
							8,000	280,409	24.07%

Schedule 7.21- 6

Houston 3921802v.12

CounterParty	Contract Date	Contract #	Price Index	Area	Contract Start	Contract End	Monthly Volumes	Remaining Yearly Volumes	% of Hedges	Fixed Price	Estimated Market Price	MtM Value at 3/30/09

Key Bank	10/27/2006	168462	NYMEX	Permian	01/01/09	12/31/09	10,000	90,455		$67.47	$55.49	1,083,707
							10,000	90,455	7.76%

Wachovia	10/27/2006	1618348	NYMEX	Permian	01/01/09	12/31/09	13,000	117,773		$67.47	$54.52	1,524,642
Wachovia	6/21/2007	N220968	NYMEX	Permian	01/01/09	07/31/09	4,000	16,182		$72.04	$49.42	365,958
							17,000	133,955	11.50%

Wells Fargo	10/27/06	137532	NYMEX	Permian	01/01/09	12/31/09	2,000	18,091		$67.64	$55.47	220,086
							2,000	18,091	1.55%

Total OIL SWAPS - 2009							97,095	1,165,137	100.00%	$71.64	$54.92	19,476,879

BNP Paribas	10/26/06	119702	NYMEX	Permian	01/01/10	12/31/10	20,000	240,000		$66.57	$64.69	450,943
BNP Paribas	12/21/06	124753	NYMEX	Permian	01/01/10	12/31/10	2,000	24,000		$67.54	$64.71	68,009
BNP Paribas	10/27/06	119812	NYMEX	Permian	01/01/10	12/31/10	10,000	120,000		$66.85	$64.69	258,888
							32,000	384,000	30.99%

Comerica	11/6/2006	ESWP247	NYMEX	Permian	01/01/10	12/31/10	18,000	216,000		$66.24	$64.68	336,727
							18,000	216,000	17.43%

JPMorgan	10/27/2006	4389629	NYMEX	Permian	01/01/10	12/31/10	5,000	60,000		$66.57	$64.69	112,909
JPMorgan	10/27/06	14481873	NYMEX	Permian	01/01/10	12/31/10	23,000	276,000		$66.42	$64.69	478,620
							28,000	336,000	27.12%

Key Bank	10/27/2006	168462	NYMEX	Permian	01/01/10	12/31/10	10,000	120,000		$66.35	$64.68	199,938
							10,000	120,000	9.69%

Wachovia	10/27/2006	1618348	NYMEX	Permian	01/01/10	12/31/10	14,250	171,000		$66.33	$64.64	288,303
							14,250	171,000	13.80%

Wells Fargo	10/27/06	137532	NYMEX	Permian	01/01/10	12/31/10	1,000	12,000		$66.56	$64.69	22,453
							1,000	12,000	0.97%

Schedule 7.21- 7

Houston 3921802v.12

CounterParty	Contract Date	Contract#	Price Index	Area	Contract Start	Contract End	Monthly Volumes	Remaining Yearly Volumes	% of Hedges	Fixed Price	Estimated Market Price	MtM Value at 3/30/09

Total OIL SWAPS - 2010							137,667	1,239,000	100.00%	$66.47	$64.68	2,216,790

BNP Paribas	10/26/06	119702	NYMEX	Permian	01/01/11	11/30/11	20,000	220,000		$65.47	$69.13	(804,611)
BNP Paribas	12/21/06	124753	NYMEX	Permian	01/01/11	01/31/11	2,000	2,000		$67.21	$67.68	(931)
BNP Paribas	10/27/06	119812	NYMEX	Permian	01/01/11	11/30/11	10,000	110,000		$65.98	$69.14	(347,513)
							32,000	332,000	32.17%

Comerica	11/6/2006	ESWP247	NYMEX	Permian	01/01/11	11/30/11	18,000	198,000		$65.02	$69.11	(809,540)
							18,000	198,000	19.19%

JPMorgan	10/27/2006	4389629	NYMEX	Permian	01/01/11	11/30/11	4,000	44,000		$65.33	$69.12	(166,650)
JPMorgan	10/27/06	14481873	NYMEX	Permian	01/01/11	11/30/11	23,000	253,000		$65.28	$69.11	(969,874)
							27,000	297,000	28.78%

Key Bank	10/27/2006	168462	NYMEX	Permian	01/01/11	11/30/11	10,000	110,000		$65.20	$69.11	(430,148)
							10,000	110,000	10.66%

Wachovia	10/27/2006	1618348	NYMEX	Permian	01/01/11	10/30/11	8,400	84,000		$65.42	$68.50	(259,091)
							8,400	84,000	8.14%

Wells Fargo	10/27/06	137532	NYMEX	Permian	01/01/11	11/30/11	1,000	11,000		$65.33	$69.12	(41,730)
							1,000	11,000	1.07%

Total OIL SWAPS - 2011							86,000	1,032,000	100.00%	$65.35	$69.07	(3,830,088)

Oil COLLARS

BNP Paribas	10/12/05	93578 (FLOOR)	NYMEX	Williston	01/01/09	12/31/09	15,300	138,205		$50.00	$3.59	496,334
BNP Paribas	10/12/05	93578 (CAP)	NYMEX	Williston	01/01/09	12/31/09	(15,300)	(138,205)		$69.15	($3.03)	(418,926)
							15,300	138,205	11.96%

Comerica	10/11/05	ECAP0208 (FLOOR)	NYMEX	Williston	01/01/09	12/31/09	15,300	138,205		$50.00	$3.59	496,334

Schedule 7.21- 8

Houston 3921802v.12

CounterParty	Contract Date	Contract#	Price Index	Area	Contract Start	Contract End	Monthly Volumes	Remaining Yearly Volumes	% of Hedges	Fixed Price	Estimated Market Price	MtM Value at 3/30/09
Comerica	10/11/05	ECAP0208 (CAP)	NYMEX	Williston	01/01/09	12/31/09	(15,300)	(138,205)		$67.65	($3.37)	(465,974)
Comerica	10/13/05	ECAP0209 (FLOOR)	NYMEX	Williston	01/01/09	12/31/09	5,500	49,750		$50.00	$3.59	178,367
Comerica	10/13/05	ECAP0209 (CAP)	NYMEX	Williston	01/01/09	12/31/09	(5,500)	(49,750)		$67.350	($3.44)	(171,064)
							20,800	187,955	16.27%

JP Morgan	10/10/05	1567755/56 (FLOOR)	NYMEX	Williston	01/01/09	12/31/09	45,900	414,614		$50.00	$3.59	1,489,005
JP Morgan	10/10/05	1567755/56 (CAP)	NYMEX	Williston	01/01/09	12/31/09	(45,900)	(414,614)		$65.75	($3.85)	(1,596,342)
							45,900	414,614	35.89%

RBC	10/12/05	26597 (FLOOR)	NYMEX	Williston	01/01/09	12/31/09	15,300	138,205		$50.00	$3.59	496,334
RBC	10/12/05	26597 (CAP)	NYMEX	Williston	01/01/09	12/31/09	(15,300)	(138,205)		$69.10	($3.04)	(420,394)
							15,300	138,205	11.96%

Wachovia	10/11/05	1258089 (FLOOR)	NYMEX	Williston	01/01/09	12/31/09	15,300	138,205		$50.00	$3.59	496,334
Wachovia	10/11/05	1258089 (CAP)	NYMEX	Williston	01/01/09	12/31/09	(15,300)	(138,205)		$68.00	($3.29)	(454,551)
							15,300	138,205	11.96%

Wells Fargo	10/11/05	COP2497 (FLOOR)	NYMEX	Williston	01/01/09	12/31/09	15,300	138,205		$50.00	$3.59	496,334
Wells Fargo	10/11/05	COP2497 (CAP)	NYMEX	Williston	01/01/09	12/31/09	(15,300)	(138,205)		$67.35	($3.44)	(475,959)
							15,300	138,205	11.96%

Total OIL Collars - 2009							96,282	1,155,389	100.00%			145,832

BNP Paribas	10/12/05	93579 (FLOOR)	NYMEX	Williston	01/01/10	12/31/10	15,208	182,500		$50.00	$4.46	814,106
BNP Paribas	10/12/05	93579 (CAP)	NYMEX	Williston	01/01/10	12/31/10	(15,208)	(182,500)		$67.00	($9.40)	(1,714,801)
							15,208	182,500	13.35%

Comerica	10/11/05	ECAP0210 (FLOOR)	NYMEX	Williston	01/01/10	12/31/10	15,208	182,500		$50.00	$4.46	814,106
Comerica	10/11/05	ECAP0210 (CAP)	NYMEX	Williston	01/01/10	12/31/10	(15,208)	(182,500)		$65.50	($10.02)	(1,829,427)

Schedule 7.21- 9

Houston 3921802v.12

CounterParty	Contract Date	Contract#	Price Index	Area	Contract Start	Contract End	Monthly Volumes	Remaining Yearly Volumes	% of Hedges	Fixed Price	Estimated Market Price	MtM Value at 3/30/09
Comerica	10/13/05	ECAP0211 (FLOOR)	NYMEX	Williston	01/01/10	12/31/10	7,500	90,000		$50.00	$4.46	401,446
Comerica	10/13/05	ECAP0211 (CAP)	NYMEX	Williston	01/01/10	12/31/10	(7,500)	(90,000)		$65.15	($10.17)	(914,937)
							22,708	272,500	19.93%

JP Morgan	10/10/05	1568315/16 (FLOOR)	NYMEX	Williston	01/01/10	12/31/10	30,417	365,000		$50.00	$4.46	1,628,213
JP Morgan	10/10/05	1568315/16 (CAP)	NYMEX	Williston	01/01/10	12/31/10	(30,417)	(365,000)		$62.95	($11.19)	(4,084,654)
							30,417	365,000	26.69%

RBC	10/11/05	26595 (FLOOR)	NYMEX	Williston	01/01/10	12/31/10	15,208	182,500		$50.00	$4.46	814,106
RBC	10/11/05	26595 (CAP)	NYMEX	Williston	01/01/10	12/31/10	(15,208)	(182,500)		$65.70	($9.94)	(1,813,678)
							15,208	182,500	13.35%

Wachovia	10/10/05	1258090 (FLOOR)	NYMEX	Williston	01/01/10	12/31/10	15,208	182,500		$50.00	$4.46	814,106
Wachovia	10/10/05	1258090 (CAP)	NYMEX	Williston	01/01/10	12/31/10	(15,208)	(182,500)		$64.00	($10.70)	(1,951,937)
							15,208	182,500	13.35%

Wells Fargo	10/11/05	COP2498 (FLOOR)	NYMEX	Williston	01/01/10	12/31/10	15,208	182,500		$50.00	$4.46	814,106
Wells Fargo	10/11/05	COP2498 (CAP)	NYMEX	Williston	01/01/10	12/31/10	(15,208)	(182,500)		$66.15	($9.75)	(1,778,775)
							15,208	182,500	13.35%

Total OIL Collars - 2010							113,958	1,367,500	100.00%			(7,988,020)

BNP Paribas	10/13/05	93580 (FLOOR)	NYMEX	Williston	01/01/11	12/31/11	11,750	141,000		$50.00	$4.92	693,039
BNP Paribas	10/13/05	93580 (CAP)	NYMEX	Williston	01/01/11	12/31/11	(11,750)	(141,000)		$64.25	($15.15)	(2,135,800)
							11,750	141,000	11.41%

Comerica	10/11/05	ECAP0212 (FLOOR)	NYMEX	Williston	01/01/11	12/31/11	15,208	182,500		$50.00	$4.92	897,224
Comerica	10/11/05	ECAP0212 (CAP)	NYMEX	Williston	01/01/11	12/31/11	(15,208)	(182,500)		$64.60	($14.97)	(2,732,773)

Schedule 7.21- 10

Houston 3921802v.12

CounterParty	Contract Date	Contract#	Price Index	Area	Contract Start	Contract End	Monthly Volumes	Remaining Yearly Volumes	% of Hedges	Fixed Price	Estimated Market Price	MtM Value at 3/30/09
							15,208	182,500	14.77%

JP Morgan	10/10/05	1568321/29 (FLOOR)	NYMEX	Williston	01/01/11	12/31/11	30,417	365,000		$50.00	$4.92	1,794,450
JP Morgan	10/10/05	1568321/29 (CAP)	NYMEX	Williston	01/01/11	12/31/11	(30,417)	(365,000)		$62.05	($16.33)	(5,960,475)
							30,417	365,000	29.53%

RBC	10/11/05	26594 (FLOOR)	NYMEX	Williston	01/01/11	12/31/11	15,208	182,500		$50.00	$4.92	897,224
RBC	10/11/05	26594 (CAP)	NYMEX	Williston	01/01/11	12/31/11	(15,208)	(182,500)		$64.75	($14.90)	(2,718,644)
							15,208	182,500	14.77%

Wachovia	10/10/05	1258091 (FLOOR)	NYMEX	Williston	01/01/11	12/31/11	15,208	182,500		$50.00	$4.92	897,224
Wachovia	10/10/05	1258091 (CAP)	NYMEX	Williston	01/01/11	12/31/11	(15,208)	(182,500)		$63.10	($15.76)	(2,876,698)
							15,208	182,500	14.77%

Wells Fargo	10/11/05	COP2499 (FLOOR)	NYMEX	Williston	01/01/11	12/31/11	15,208	182,500		$50.00	$4.92	897,224
Wells Fargo	10/11/05	COP2499 (CAP)	NYMEX	Williston	01/01/11	12/31/11	(15,208)	(182,500)		$65.25	($14.64)	(2,671,791)
							15,208	182,500	14.77%

Total OIL Collars - 2011							103,000	1,236,000	100.00%			(13,019,796)

Natural Gas Liquid Swaps

J Aron & Co	11/08/06	891043169	OPIS	Permian	01/01/09	10/31/09	1,166,262	8,201,455		$0.86	$0.66	1,612,103
J Aron & Co	09/17/07	900695221	OPIS	Gulf Coast	01/01/09	08/31/09	1,795,706	9,036,457		$0.97	$0.52	4,052,435
J Aron & Co	02/21/08	903761699	OPIS	ArkLaTex	03/01/09	12/31/09	38,647	349,071		$1.13	$0.51	217,947
							1,758,698	17,586,983	75.58%

JP Morgan	05/05/08	15095291	OPIS	ArkLaTex	03/01/09	02/28/10	629,074	5,681,957		$1.25	$0.50	4,252,004
							629,074	5,681,957	24.42%

NGL Swaps - 2009							1,939,078	23,268,940	100.00%		$0.57	10,134,489

Schedule 7.21- 11

Houston 3921802v.12

CounterParty	Contract Date	Contract#	Price Index	Area	Contract Start	Contract End	Monthly Volumes	Remaining Yearly Volumes	% of Hedges	Fixed Price	Estimated Market Price	MtM Value at 3/30/09

J Aron & Co	02/21/08	903761394	OPIS	ArkLaTex	03/01/10	12/31/10	27,400	274,000		$1.08	$0.64	120,270
J Aron & Co	02/21/08	903761699	OPIS	ArkLaTex	01/01/10	02/28/10	31,443	62,885		$1.13	$0.61	32,830
							33,689	336,885	5.74%

JP Morgan	05/05/08	15095291	OPIS	ArkLaTex	03/01/09	02/28/10	512,015	1,024,029		$1.25	$0.61	651,092
							512,015	1,024,029	17.45%

JP Morgan	05/05/08	15095392	OPIS	ArkLaTex	03/01/10	02/28/11	450,748	4,507,479		$1.17	$0.64	2,410,365
							450,748	4,507,479	76.81%

NGL Swaps - 2010							489,033	5,868,393	100.00%		$0.63	3,214,557

J Aron & Co	02/21/08	903761394	OPIS	ArkLaTex	01/01/11	02/28/11	23,703	47,405		$1.080	$0.69	18,639
							23,703	47,405	5.75%

JP Morgan	05/05/08	15095392	OPIS	ArkLaTex	03/01/10	02/28/11	388,791	777,582		$1.17	$0.68	379,561
							388,791	777,582	94.25%

NGL Swaps - 2011							68,749	824,987	100.00%		$0.68	398,200

											Total Net Asset/(Liability) for Gas, Oil, & Natural Gas Liquid Hedges	$117,593,076.00
*	Trade recently entered into. MTM value estimated to be $0.00 as of 03/25/09.
	Forward curve was similar on 03/30/2009.

Schedule 7.21- 12

Houston 3921802v.12

SCHEDULE 7.24

MATERIAL AGREEMENTS

1.	Senior Convertible Notes indenture, in the aggregate principal amount of $287,500,000, due on or about April 1, 2027.

2.	And the agreements set forth on the exhibit list to the Company’s Form 10-K for the year ended December 31, 2008, as material contracts included as exhibits 10.1 through 10.38.

Schedule 7.24 - 1

Houston 3921802v.12

SCHEDULE 9.05(a)

INVESTMENTS

None.

Schedule 9.05(a) - 1

Houston 3921802v.12

SCHEDULE 9.05(h)

EXISTING INVESTMENTS (NON-OIL AND GAS)

1.	50% general partnership interest in Hilltop Investments holding approximately 41 acres of undeveloped land in Jefferson County at C-470 and Quincy.

2.	Residual net profits interest in land located in Grand Junction, Colorado if reclaimed by gravel operator and sold as lots in Mid-America Business Park, a rail served industrial park.

Schedule 9.05(h) - 1

Houston 3921802v.12