EXHIBIT 10.1 PURCHASE AND SALE AGREEMENT --------------------------- This Purchase and Sale Agreement ("Agreement") dated as of December 13, 2002, is by and among FLYING J OIL & GAS INC., a Utah corporation ("Flying J") and BIG WEST OIL & GAS INC., a Utah corporation ("Big West"), (collectively "Seller") and NPC Inc., a Colorado corporation ("Buyer"), and ST. MARY LAND & EXPLORATION COMPANY, a Delaware corporation ("St. Mary") relative to the "Interests" (as hereinafter defined). In consideration of the mutual promises contained herein, the benefits to be derived by each party hereunder and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Buyer and Seller agree as follows: Article I --------- PURCHASE AND SALE ----------------- 1.01 Purchase and Sale. Seller agrees to sell and convey and Buyer ------------------ agrees to purchase and pay for the Interests subject to the terms and conditions of this Agreement. 1.02 Interests. All of Seller's right, title and interest in and to the --------- following (except for the "Excluded Assets" defined below) which shall be referred to as the "Interests": (a) All of Seller's interests, in and to the entire estates created by the leases, licenses, permits and other agreements described in Exhibit "A" (the "Leases") and the lands described in Exhibit "A" (the "Lands"), and including any overriding royalty interests, mineral fee interests, reversionary interests, production payments, net profits interests, and any other interests Seller may own in or affecting the oil and gas minerals underlying the Lands, and including all of Seller's interests in and to its oil and gas assets whether correctly described herein unless specifically included within the Excluded Assets, together with (i) all rights, privileges, benefits and powers conferred upon Seller as the holder of the Leases with respect to the use and occupation of the surface of the Lands that may be necessary, convenient or incidental to the possession and enjoyment of the Leases, (ii) all rights in respect of any pooled, communitized, or unitized acreage located in whole or in part within the Lands by virtue of the Leases, including rights to production from the pool, communitized area, or unit allocated to any Lease being a part thereof, regardless of whether such production is from the Lands, (iii) all rights, options, titles and interests of Seller granting Seller the right to obtain, or otherwise earn interests within the Lands no matter how earned, and (iv) all tenements, hereditaments and appurtenances belonging to any of the foregoing; (b) The undivided interests in and to all of the oil and gas wells, saltwater disposal wells and injection wells (the "Wells") as set forth in Exhibit "A-1" together with all hydrocarbons produced from the Wells and Leases together with any tight sands tax credits associated therewith, gas balancing positions, and all of the personal property, fixtures and improvements now or as of the Effective Time (as defined in Section 1.04 below) on the Lands, appurtenant thereto or used in connection therewith or with the production, gathering, storing, measuring, treating, operating, maintaining, marketing, or transportation of production from the Wells, Lands or Leases or lands pooled, communitized or unitized therewith, including all surface or downhole equipment and personal property associated with the Wells or situated upon the Leases, together with all such surface and downhole equipment, fixtures and inventory and personal property and equipment, if any, not physically located upon the Leases, but used, or intended for use, in connection with the Leases (the "Equipment") and specifically including the Sidney, Montana, field office and with any other field office or yard associated with the Leases together with all real and personal property comprising or associated with all such field offices and yards; (c) The contracts and contractual rights, obligations and interests, including all farmout agreements, farmin agreements, drilling contracts, operating agreements, sales contracts, saltwater disposal agreements, division orders and transfer orders, hedges, swaps and collars relating to production by Seller and other contracts or agreements covering or affecting any or all of the Wells, Leases and/or Lands (the "Contracts"); (d) The easements, licenses, authorizations, permits, rights of way, servitudes, surface leases, the building lease for any field office and similar rights and interests applicable to the ownership or operation of the Wells; (e) All of Seller's right, title and interest in and to those gathering pipeline systems commencing at or near each Well connected to each subsystem and lying upstream of the interconnects with other pipeline systems, all as designated and depicted on Exhibit "A-2" hereto (the "Gas Gathering Systems") together with all of Seller's right, title and interest in and to (1) all easements, rights-of-way, licenses, permits and other agreements necessary or incidental to the ownership, maintenance and operation of the Gas Gathering Systems; (2) all other agreements, permits, licenses, contracts, property and rights incident or appurtenant to Gas Gathering Systems; and (3) all pipelines, gathering lines, meters, meter runs, drips, taps, valves, compressors, generators, dehydrators, building, facilities, telecommunication equipment and other personal property (including, without limitation, any inventory) used to receive gas into a Gas Gathering System and to transport and redeliver the same out of such system at the interconnection points depicted on Exhibit "A-2". (f) Insofar as such pertain to the Leases, Lands, Wells and the other equipment, personal property, Contracts, Gas Gathering Systems and other matters described herein, all books, records, reports, manuals, files, title documents, including correspondence, records of production, maintenance, revenue, sales, expenses, warranties, lease files, land files, well files, division order files, abstracts, title opinions, assignments, reports, and other written material relating to the Interests and in Seller's possession, including without limitation, property records, contract files, operations files, copies of tax and accounting records (but excluding Federal income tax returns and records) and files, maps, core data, hydrocarbon analyses, well logs, mud logs, field studies, together with other files, contracts, and other records and data, including all geologic and geophysical data and seismic data of Seller relating to the Interests, whether maintained in paper or electronic form(the "Records"); however, Seller shall have no obligation to furnish Buyer any data or information which Seller cannot provide to Buyer because of third party restrictions. 1.03 Excluded Assets. As used herein, "Excluded Assets" means, (a) all --------------- trade credits and all accounts, instruments and general intangibles (as such terms are defined in the Utah Uniform Commercial Code) attributable to the Interests with respect to any period of time prior to the Effective Time; (b) all claims and causes of action of Seller (i) except as set forth in Section 5.09, arising from acts, omissions or events, or damage to or destruction of property, occurring prior to the Effective Time, (ii) arising under or with respect to any Contracts that are attributable to periods of time prior to the Effective Time (including claims for adjustments or refunds), or (iii) with respect to any of the Excluded Assets; (c) all rights and interests of Seller (i) under any policy or agreement of insurance or indemnity, (ii) under any bond, or (iii) to any insurance or condemnation proceeds or awards arising, in each case, from acts, omissions or events, or damage to or destruction of property, occurring prior to the Effective Time; (d) all substances produced or sold from the Lands and Leases with respect to all periods prior to the Effective Time, together with all proceeds from or of such substances; (e) claims of Seller for refunds of or loss carry forwards with respect to (i) production or any other taxes attributable to any period prior to the Effective Time, (ii) income or franchise taxes, or (iii) any taxes attributable to the Excluded Assets; (f) all amounts due or payable to Seller as adjustments to insurance premiums related to the Interests with respect to any periods prior to the Effective Time; (g) all proceeds, income or revenues (and any security or other deposits made) attributable to (i) the Interests for any period prior to the Effective Time, or (ii) any Excluded Assets; (h) all personal computers and associated peripherals and all radio and telephone equipment except that which is located on the Wells; (i) all of Seller's proprietary computer software, patents, trade secrets, copyrights, names, trademarks, logos and other intellectual property; (j) all documents and instruments of Seller that may be protected by an attorney-client privilege; (k) data that cannot be disclosed or assigned to Buyer as a result of confidentiality arrangements under agreements with persons unaffiliated with Seller; (l) all audit rights arising under any Contracts or otherwise with respect to any period prior to the Effective Time or to any of the Excluded Assets; and, (m) Seller's interests in and to the Uinta Basin, White River Dome and Powder River Basin Coalbed Methane properties and the Rife's Rim Field all as described on Exhibit A-3; and (n) that certain field office of Seller located in Ballard, Utah. 1.04 Effective Time. The purchase and sale of the Interests shall be --------------- effective for all purposes as of November 1, 2002, at 12:01 a.m., local time at the location of the Interests (the "Effective Time"). Article II ---------- PURCHASE PRICE -------------- 2.01 Purchase Price. The purchase price for the Interests shall be --------------- $85,000,000.00 (the "Purchase Price"), which shall be adjusted only in accordance with the provisions of Article V. In addition, the parties shall make the adjustments described in Section 2.02 below at and after Closing in accordance with the terms hereof, which adjustments shall be netted on a cash basis and paid as provided in this Agreement. The Purchase Price shall be paid by Buyer to Seller at Closing in the form of shares of common stock of St. Mary, the "grandparent" of Buyer. These shares of common stock are hereinafter referred to as the "St. Mary Stock." Assuming an unadjusted Purchase Price, Seller, in the proportions requested by Seller as to each party constituting Seller, shall have issued to Seller the total of 3,400,000 shares of St. Mary Stock. The number of shares of St. Mary Stock shall be proportionately and appropriately adjusted in the event of any stock split, stock dividend, recapitalization, reclassification, or any similar capital stock restructure by St. Mary occurring prior to Closing. Additionally, to the extent the Purchase Price is adjusted either upward or downward in accordance with the provisions of Article V hereof, the number of shares of St. Mary Stock to be issued to Seller shall likewise be adjusted proportionately based on this original number of shares and the unadjusted Purchase Price. 2.02 Adjustments to Purchase Price. The parties shall make the -------------------------------- following monetary adjustments in cash to account for the various financial matters that will arise regarding the Interests both before and after the Effective Time as follows: (a) The following shall be paid to Seller: (i) The value of all oil and gas in storage or in pipelines or the tanks and above the pipeline connection or upstream of the sales meter as of the Effective Time which is credited to the Interests, such value to be the market value or, if applicable, the contract price in effect as of the Effective Time, less taxes and deductions by the purchaser; provided however, Seller shall remain responsible for the payment of any taxes on this production and all royalty, overriding royalty, and other non-cost bearing burdens affecting this production; (ii) The amount of all verifiable expenditures under applicable operating agreements or other similar arrangements or agreements and, in the absence of such agreements, such expenses of the sort customarily billed thereunder, paid by Seller in connection with the Interests for the period subsequent to the Effective Time; (iii) An amount equal to all prepaid expenses attributable to the Interests that are paid by Seller or any affiliate of Seller prior to the Closing Date that inure to the benefit of Buyer and that are, in accordance with generally accepted accounting principles, attributable to the period after the Effective Time, including without limitation, prepaid ad valorem, property, production, severance and similar taxes (but not including income taxes) based upon or measured by the ownership of property or the production of hydrocarbons or the receipt of proceeds therefrom; provided however, that ad valorem and similar taxes shall be considered assessed for the period for which they are stated to be assessed, even if such taxes are calculated from or based upon production or other activities occurring in prior periods; (iv) An amount equal to $1.00 per MCF of the underproduced gas imbalance with respect to any gas production, pipeline, storage, processing or other gas imbalance attributable to the Interests as of the Effective Time; and, (v) Any other amount agreed upon by Seller and Buyer. (b) The following shall be paid to Buyer: (i) The value of proceeds received by Seller from the sale of oil, gas or other hydrocarbons attributable to the Interests and relating to production after the Effective Time, less all applicable taxes not reimbursed to Seller by a purchaser; and less all royalties, overriding royalties and other non-cost bearing burdens affecting this production; (ii) An amount equal to all unpaid ad valorem, property, production, severance and similar taxes and assessments (but not including income taxes) based upon or measured by the ownership of property or the production of hydrocarbons or the receipt of proceeds therefrom accruing to the Interests prior to the Effective Time; provided however, that ad valorem and similar taxes shall be considered assessed for the period for which they are stated to be assessed, even if such taxes are calculated from or based upon production or other activities occurring in prior periods; (iii) The amount of all authorized and verifiable expenditures paid by Buyer for work actually done and performed in connection with the Interests for the period prior to the Effective Time; (iv) An amount equal to $1.00 per MCF of the overproduced gas imbalance with respect to any gas production, pipeline, storage, processing or other gas imbalance attributable to the Interests as of the Effective Time; and, (v) Any other amount agreed upon by Seller and Buyer. 2.03 Allocation of Purchase Price. The Purchase Price shall be ------------------------------- allocated ("Allocated Value") among the Interests including the specifically identified proved undeveloped locations and behind pipe intervals, the hedges, collars and swaps and other specifically identified items all as set forth in Exhibit "B" hereto and which has been approved by Seller. Article III ----------- REPRESENTATIONS AND WARRANTIES ------------------------------ 3.01 Representations and Warranties of Seller. Seller, each as to its ---------------------------------------- individual ownership position in the Interests, represents and warrants to Buyer as follows: (a) Flying J and Big West are each a Utah corporation, each is duly organized, validly existing and in good standing under the laws of its state of organization, and each is duly qualified to carry on its business in each of the states identified in Exhibit "A". Flying J is the sole shareholder of Big West. (b) Seller has the requisite power and authority to carry on its business as presently conducted, to enter into this Agreement, to sell the Interests on the terms described in this Agreement and to perform its obligations under this Agreement. The consummation of the transactions contemplated by this Agreement will not violate, nor be in conflict with, any provision of Seller's governing documents, or any agreement or instrument to which Seller is a party or is bound, or any judgment, decree, order, statute, rule or regulation applicable to Seller. (c) The execution, delivery and performance of this Agreement and the transactions contemplated hereby have been duly and validly authorized by all requisite action on the part of Seller, including but not limited to the approval of this Agreement and the transactions contemplated thereby by Flying J as the sole shareholder of Big West. (d) This Agreement has been duly executed and delivered on behalf of Seller, and at the Closing all documents and instruments required hereunder to be executed and delivered by Seller shall have been duly executed and delivered. This Agreement does, and such documents and instruments shall, constitute legal and valid obligations of Seller fully enforceable in accordance with its terms. (e) Seller has incurred no liability, contingent or otherwise, for brokers' or finders' fees relating to the transactions contemplated by this Agreement for which Buyer or St. Mary shall have any responsibility whatsoever. (f) To the best of Seller's knowledge, no claim, demand, filing, hearing, notice of violation, proceeding, notice or demand letter, investigation, administrative proceeding, civil, criminal or other action, suit or other legal proceeding is pending or threatened against Seller relating to, resulting from or affecting the ownership or operation of the Interests. (g) Subject to the provisions of this paragraph and to the best of Seller's knowledge, (i) the production and expense data heretofore furnished or caused to be furnished by Seller to Buyer (the "Information"), and any supplement thereto, was complete and correct in all material respects as of the date of such delivery, and (ii) the Information, as of its respective dates and of the respective dates of its delivery, did not contain a material misstatement of fact regarding the matters described herein and did not omit to state therein a material fact necessary to make the statements therein not misleading, in light of the circumstances under which they were made. Except as set forth in this Section 3.01 (g) or elsewhere in this Agreement, no representation or warranty of any kind is made by Seller as to the Information or with respect to the Interests to which the Information relates and Buyer expressly agrees that any conclusions drawn therefrom shall be the result of its own independent review and judgment. The representations contained in this paragraph shall apply only to matters of fact, and shall not apply to any information, data, printouts, extrapolations, projections, documentation, maps, graphs, charts, or tables which reflect, depict, present, portray, or represent, or which are based upon or derived from, in whole or in part, interpretation of the Information including, but not limited to, matters of geological, geophysical, engineering, or scientific interpretation, except that with respect to the foregoing materials described in this sentence Seller represents that they have been prepared in good faith utilizing assumptions and other bases which Seller deems to be reasonable. (h) The Interests are subject to a mortgage and lien in favor of a syndicate of lenders represented by Bank One, NA as Agent pursuant to the Credit Agreement among Flying J Oil and Gas Inc. and Big West Oil & Gas Inc., as Borrowers and Bank One, NA and the Institutions named in such Credit Agreement dated March 15, 2002. The mortgage and lien under this Credit Agreement shall be released at Closing. Except as provided in this Section 3.01(h), the transfer of the Interests to Buyer does not violate any covenants or restrictions imposed on Seller by any bank or other financial institution in connection with a mortgage or other instrument, and will not result in the creation or imposition of a lien on any portion of the Interests. (i) Except as disclosed by Seller in writing, to the best of Seller's knowledge, it is in compliance with all laws, rules, regulations, ordinances, codes, orders, licenses, concessions and permits pertaining to the Interests. (j) To the best of Seller's knowledge, Seller has all material governmental licenses and permits and has properly made all material filings, necessary or appropriate to obtain those licenses and permits to own and operate the Interests, and such licenses, permits and filings are in full force and effect, and no material violations exist in respect of any such licenses, permits or filings, no proceeding is pending or to the best of Seller's knowledge is threatened looking toward the challenging, revocation or limitation of any such licenses, permits or filings. (k) To the best of Seller's knowledge, (i) the material terms of all Leases, operating agreements, production sales contracts, farmout agreements and other contracts or agreements respecting the Interests can be found either of record in the counties in which the Interests are located or are reflected or referenced in Seller's files, and (ii) the Contracts are currently in full force and effect in accordance with their applicable terms. (l) To the best of Seller's knowledge, Seller has received no notice of termination of any of the Leases. (m) Seller is not (i) obligated by virtue of any prepayment arrangement under any contract for the sale of hydrocarbons, including "take or pay" obligation, hedging or forward sale agreements, or similar provisions or a production payment or any other arrangement to deliver hydrocarbons from the Interests at some future time without then or thereafter receiving full payment therefor, (ii) subject to any production sales agreements currently in effect that cannot be terminated with sixty (60) days prior written notice, and (iii) subject to any calls on production affecting the Interests. (n) To the best of Seller's knowledge, information, and belief there are no surface use or access agreements currently in force and effect that would materially interfere with oil and gas operations on the Leases. (o) Except as disclosed on Schedule 3.01(o), to the best of Seller's knowledge, none of the Wells included within the Interests has been represented by its operator, either in a pending AFE or other written proposal to other well participants, as being in need of being plugged and abandoned. (p) Subject to the provisions of Sections 2.02(a)(iii) and 2.02(b)(ii), to the best of Seller's knowledge, all ad valorem, property, production, severance and similar taxes and assessments based on or measured by the ownership of property or the production of hydrocarbons or the receipt of proceeds therefrom with respect to the Interests for all periods prior to the Effective Time have been properly paid and all such taxes and assessments which must be paid prior to the Closing shall have been properly paid by Seller. (q) Seller has provided to Buyer the hedging, swap and collar contracts currently in force and effect regarding the Interests. (r) With regard to the hedges, swaps and collars included in the Interests, there are no material terms or conditions that have not been furnished to Buyer for its review prior to the execution of this Agreement. (s) There are no gas imbalances affecting the Interests beyond those set forth on the attached Schedule 3.01(s). (t) Subject to the provisions of the Registration Rights Agreement set forth in Exhibit F, Seller, and each of them, is an "accredited investor" as defined under Regulation D promulgated under the Securities Act of 1933, as amended (the "Act"), and is acquiring the St. Mary Stock for its own respective account, and not with a view to, or for offer of resale in connection with, a distribution thereof within the meaning of the Act and any other rules, regulations or laws, whether state or federal, pertaining to the distribution of securities. 3.02 Representations and Warranties of Buyer. Buyer represents and ------------------------------------------ warrants to Seller as follows: (a) Buyer is a Colorado corporation duly organized, validly existing and in good standing under the laws of its state of organization and is or will be at Closing duly qualified to carry on its business in each of the states identified in Exhibit "A". (b) Buyer has all requisite power and authority to carry on its business as presently conducted, to enter into this Agreement, to purchase the Interests on the terms described in this Agreement and to perform its other obligations under this Agreement. The consummation of the transactions contemplated by this Agreement will not violate, or be in conflict with, any provision of Buyer's governing documents, or any agreement or instrument to which Buyer is a party or is bound, or any judgment, decree, order, statute, rule or regulation applicable to Buyer. (c) The execution, delivery and performance of this Agreement and the transactions contemplated hereby have been duly and validly authorized by all requisite action on the part of Buyer. (d) This Agreement has been duly executed and delivered on behalf of Buyer, and at the Closing all documents and instruments required hereunder to be executed and delivered by Buyer shall have been duly executed and delivered. This Agreement does, and such documents and instruments shall, constitute legal and valid obligations of Buyer fully enforceable in accordance with their terms. (e) Buyer has incurred no liability, contingent or otherwise, for brokers' or finders' fees relating to the transactions contemplated by this Agreement for which Seller shall have any responsibility whatsoever. (f) In entering into this Agreement, Buyer has relied solely on the express representations and covenants of Seller in this Agreement, its independent investigation of, and judgment with respect to, the Interests and the advice of its own legal, tax, economic, environmental, engineering, geological and geophysical advisors and not on any comments or statements of any representatives of, or consultants or advisors engaged by Seller or its representatives. (g) Buyer is an experienced and knowledgeable investor and operator in the oil and gas business. Buyer is acquiring the Interests for its own account and not with a view to, or for offer of resale in connection with, a distribution thereof within the meaning of the Securities Act of 1933, as amended, and any other rules, regulations and laws, whether state or federal, pertaining to the distribution of securities. 3.03 Representations and Warranties of St. Mary. ------------------------------------------ (a) St. Mary is a Delaware corporation duly organized, validly existing and in good standing under the laws of its state of organization. (b) St. Mary has all requisite power and authority to carry on its business as presently conducted, to enter into this Agreement and to perform its obligations under this Agreement. The consummation of the transactions contemplated by this Agreement will not violate, or be in conflict with, any provision of St. Mary's governing documents, or any agreement or instrument to which St. Mary is a party or is bound, or any judgment, decree, order, statute, rule or regulation applicable to St. Mary. (c) The execution, delivery and performance of this Agreement and the transactions contemplated hereby have been duly and validly authorized by all requisite action on the part of St. Mary. (d) This Agreement has been duly executed and delivered on behalf of St. Mary, and at the Closing all documents and instruments required hereunder to be executed and delivered by St. Mary shall have been duly executed and delivered. This Agreement does, and such documents and instruments shall, constitute legal and valid obligations of St. Mary fully enforceable in accordance with their terms. (e) At Closing the St. Mary Stock will have been duly authorized, validly issued and will be fully paid and non-assessable and free of preemptive rights. (f) St. Mary has incurred no liability, contingent or otherwise, for brokers' or finders' fees relating to the transactions contemplated by this Agreement for which either Seller shall have any responsibility whatsoever. (g) St. Mary has filed all required reports, schedules, forms, statements and other documents required to be filed with the Securities and Exchange Commission ("SEC") (collectively, including all exhibits thereto, the "St. Mary SEC Reports"). No direct or indirect subsidiary of St. Mary, including Buyer, is required to file any form, report or other document with the SEC. None of the St. Mary SEC Reports, as of their respective dates (and, if amended or superceded by filings prior to the date of this Agreement or the Closing, then on the date of such filing), contained any untrue statement of a material fact or omitted to state a material fact to be required to be stated therein or necessary to make the statements therein, in light of the circumstances under which they were made, not misleading. Each of the financial statements (including the related notes) included in the St. Mary SEC Reports presents thoroughly, in all material respects, the consolidated financial position and consolidated results of operations and cash flows of St. Mary and its direct and indirect subsidiaries as of the respective dates or for the respective periods set forth therein, all in accordance with GAAP consistently applied during the periods involved except as otherwise noted therein. All of such St. Mary SEC Reports, as of their respective dates (and as of the date of any amendment to the respective St. Mary SEC Report), comply as to form in all material respects with the applicable requirements of the Securities Act of 1933 and the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder. (h) Since September 30, 2002, there has not been any material adverse change in, or event or condition which has had a material adverse effect on, the condition (financial or otherwise), properties, assets, liabilities of St. Mary (other than any change or circumstance relating to the economy or securities markets in general or to the oil and gas industry in general). (i) St. Mary has not caused any material act or omission to occur which (i) is improper under the laws, regulations, or accounting rules applicable to St. Mary and (ii) has resulted or would be likely to result when discovered in a material decline in the average trading price for the publicly traded shares of St. Mary common stock. (j) At Closing the St. Mary Stock shall be free and clear of all liens, security interests, options, rights of first refusal and other encumbrances of every nature whatsoever, excepting however, the stock pledge and the call option granted to St. Mary, and the share transfer restriction and standstill agreement obligation of Seller pursuant to the exhibits attached to this Agreement. (k) Buyer is a wholly-owned subsidiary of Nance Petroleum Corporation which is a wholly-owned subsidiary of St. Mary. Article IV ---------- COVENANTS --------- 4.01 Covenants of Seller. Seller covenants and agrees with Buyer that ------------------- from the date hereof to the Closing Date, except (i) as provided herein, (ii) as required by any obligation, agreement, lease, contract or instrument affecting the Interests, or (iii) as otherwise consented to in writing by Buyer, Seller shall: (a) Give Buyer and its representatives access to, and the right to copy, at Buyer's expense, all information in its possession relating to the Interests unless specifically precluded by a third party agreement which shall include, without limitation, title opinions, abstracts of title, land records, accounting records, production records, operating expense records, engineering, geological and geophysical data, development plans and permits, and any other information of whatsoever kind relating to the production and operation of the Interests. All such information shall be open to inspection and photocopying at Seller's offices at any reasonable time during the term of this Agreement. Prior to Closing, all such information shall remain subject to the existing Confidentiality Agreements dated May 20, 2002, and December 13, 2002, by and between parties hereto or their affiliates, which agreements will also bind Buyer as though it were an original signatory thereto. (b) Prior to the Closing, Seller shall continue to operate its oil and gas business in the ordinary course and generally consistent with past practice, and Seller shall give Buyer prompt notice of what it believes to be any material occurrence in its business. From and after the date of this Agreement, Seller shall not, except as set forth in Schedule 4.01(b) attached hereto, (i) enter into any new agreements or commitments with respect to the Interests which terms would extend beyond the Closing, (ii) conduct any single or related series of capital or workover projects with respect to the Interests with a total cost in excess of $100,000, (iii) abandon any Well located on the Leases nor release or abandon all or any portion of any of the Leases, (iv) modify or terminate any of the existing agreements and (v) encumber, sell or otherwise dispose of any of the Interests other than personal property that is replaced by equivalent property and production sold in the ordinary course of business and which is accounted for hereunder or consumed in the normal operation of the Interests. (c) Take or cause to be taken all such actions as may be reasonably necessary or advisable to consummate and make effective the sale of the Interests and the transactions contemplated by this Agreement and to assure that as of the Closing Date it will not be under any material organizational, legal or contractual restriction that would prohibit or delay the timely consummation of such transactions. (d) Promptly notify Buyer (i) if any representation or warranty of Seller contained in this Agreement is discovered to be or becomes untrue, or (ii) if Seller fails to perform or comply with any covenant or agreement contained in this Agreement or it is reasonably anticipated that Seller will be unable to perform or comply with any covenant or agreement contained in this Agreement. (e) Keep and maintain all policies of insurance relating to the Interests in full force and effect through Closing. (f) Cooperate with Buyer in the notification of all applicable governmental regulatory authorities of the transactions contemplated hereby and cooperate with Buyer in obtaining the issuance by each such authority of such permits, licenses and authorizations as may be necessary for Buyer to own and operate the Interests following the consummation of the transactions contemplated by this Agreement. (g) Exercise all due diligence in safe-guarding and securely maintaining all engineering, geological and geophysical data, reports and maps, all other confidential information, in any medium or form whatsoever, in the possession of Seller relating to the Interests. (h) Promptly notify Buyer if any material adverse change occurs with respect to the Interests. (i) Immediately cease and cause to be terminated all existing discussions and negotiations, if any such exist, with any parties conducted heretofore with respect to any Acquisition Proposal. As used in this Section 4.01(i), "Acquisition Proposal" means any tender offer or exchange offer by a non-affiliated third party for fifty percent or more of the outstanding shares of common stock either or both of the parties constituting Seller, or any proposal or offer by a non-affiliated third party for a merger, consolidation, amalgamation or other business combination involving either party constituting Seller, or any equity securities (or securities convertible into equity securities) of either party constituting Seller, or any proposal or offer by a non-affiliated third party to acquire in any manner a fifty percent or greater equity or beneficial interest in, or a material portion of the assets or value of either party constituting Seller, other than pursuant to the transactions contemplated by this Agreement. Unless and until this Agreement shall have been terminated, the parties constituting Seller shall not permit any of their respective officers, directors, employees, agents, financial advisors, counsel or other representatives (collectively, the "Representatives") to, directly or indirectly (i) solicit, initiate or take any action with the intent of facilitating the making of, any offer or proposal that constitutes or that is reasonably likely to lead to any Acquisition Proposal, (ii) participate in any discussions or negotiations regarding any Acquisition Proposal, or (iii) furnish to any person or business entity (other than St. Mary, Buyer, or any affiliate or Representative of Seller) any nonpublic information or nonpublic data outside the ordinary course of conducting Seller's business. Seller shall notify Buyer of any such inquiries, offers or proposals (including the identity of the person or entity making any inquiry, offer or proposal) as promptly as possible and in any event within twenty four hours after receipt thereof or the occurrence of such events, as appropriate. (j) Subject to the provisions of Section 2.02(a)(iii), Seller shall pay all ad valorem, property, production, severance and similar taxes and assessments with respect to the Interests for all periods prior to the Effective Time. (k) Seller shall retain and discharge all of its liabilities and obligations accruing prior to Closing other than those associated with the operation and maintenance of the Interests in the ordinary course of business and incurred from the Effective Time until Closing, unless such liabilities and obligations are otherwise specifically attributed to Buyer in accordance with the terms of this Agreement. (l) Seller shall grant Buyer, or Buyer's authorized representatives, at all reasonable times prior to Closing and upon adequate notice to Seller, physical access to the Interests for the purpose of inspecting same insofar as Seller is the operator for such portion of the Interests. If Seller is not the operator of the affected portion of the Interests, Seller shall make a good faith effort to give Buyer, or Buyer's authorized representatives, at all reasonable times before Closing, and upon adequate notice to Seller, physical access to such portion of the Interests for the purpose of inspecting the same. Where Seller is not the operator, Buyer recognizes that Seller's ability to obtain access to such portion of the Interests and the manner and extent of such access is subject to the rules, regulations and conditions of such third party operators. Buyer agrees to comply fully with the rules, regulations and instructions issued by Seller or the operator of such property where Seller is not the operator, regarding the actions of Buyer while upon, entering or leaving the Interests. 4.02 Covenants of Buyer and St. Mary. Buyer, and St. Mary where ---------------------------------- specifically so identified, each covenants and agrees with Seller that from the date hereof to the Closing Date, except (i) as provided herein, or (ii) as otherwise consented to in writing by Seller, Buyer, and as appropriate, St. Mary, shall: (a) Take or cause to be taken all such actions as may be necessary or advisable to consummate and make effective the purchase of the Interests and the transactions contemplated by this Agreement and to assure that as of the Closing Date it will not be under any material organizational, legal or contractual restriction that would prohibit or delay the timely consummation of such transactions. (b) Cause all the representations and warranties of Buyer contained in this Agreement to be true and correct on and as of the Closing Date. (c) Promptly notify Seller (i) if any representation or warranty of Buyer contained in this Agreement is discovered to be or becomes untrue, or (ii) if Buyer fails to perform or comply with any covenant or agreement contained in this Agreement or it is reasonably anticipated that Buyer will be unable to perform or comply with any covenant or agreement contained in this Agreement. (d) St. Mary shall, subject to the provisions of the Confidentiality Agreement between St. Mary and Seller, provide Seller with full access at all reasonable times to its assets, liabilities, records and employees, and shall provide such other information as Seller may reasonably request in order for Seller to have the opportunity to confirm the accuracy of the representations and warranties of St. Mary as contained herein. (e) St. Mary shall maintain its books, records and accounting practices in accordance with generally accepted accounting principles, and all applicable laws, rules, orders, regulations and directives of any applicable federal and/or state governing body or regulatory authority. St. Mary shall file in a timely manner all certifications, reports, forms, schedules, statements and other documents required by the SEC, New York Stock Exchange, and other applicable regulatory authorities. (f) St. Mary shall obtain any necessary authorizations, approvals or consents from any governmental, regulatory agency or any securities exchange necessary for the execution, delivery or performance of this Agreement. (g) St. Mary shall cause the Shares of St. Mary Stock issued to Seller upon the Closing to be approved for listing (subject to official notice of issuance) on the New York Stock Exchange. (h) Prior to the Closing, Buyer will satisfy all bonding and regulatory requirements of all state and federal governmental authorities so that Buyer is qualified to own the Interests. The consummation of the transactions contemplated hereby will not cause Buyer to be disqualified as an owner of state or federal oil, gas and mineral leases, or to exceed any acreage limitation imposed by any law, statute, rule or regulation. Article V --------- TITLE MATTERS, ENVIRONMENTAL MATTERS, ------------------------------------- CASUALTY LOSS AND ABANDONMENT ----------------------------- 5.01 Seller's Title. Seller represents to Buyer that Seller's title to -------------- the Interests as of the Effective Time is (and as of the Closing shall be) "Marketable Title" as defined in Section 5.02 hereinbelow. 5.02 Definition of Marketable Title. As used in this Agreement, the ------------------------------- term "Marketable Title" shall mean, as to each of the Interests including the proved undeveloped locations and behind pipe intervals specifically identified on Exhibit "B", that the title acquired by Buyer: (a) Will entitle Buyer to receive not less than the Net Revenue Interests set forth in Exhibit "B" and a like share of all hydrocarbons produced, saved and marketed from the Interests throughout the productive life of the Interests. (b) Will obligate Buyer to bear the percentage of the costs and expenses related to the maintenance, development and operation of the Interests not greater than the Working Interests set forth on Exhibit "B" throughout the productive life of the Interests. (c) Is free and clear of all liens, security interests, encumbrances, burdens and claims of any kind, except for Permitted Encumbrances. 5.03 Definition of Permitted Encumbrances. As used herein, the term ------------------------------------ "Permitted Encumbrances" shall mean: (a) Lessors' royalties, overriding royalties, reversionary interests and similar burdens, whether recorded or unrecorded, that do not operate to reduce the Net Revenue Interests set forth in Exhibit "B". (b) Division orders and sales contracts terminable without penalty upon no more than thirty (30) days' notice to the purchaser. (c) Except as provided in Section 5.06 below, preferential rights to purchase and required third-party consents and similar agreements with respect to which waivers or consents are obtained under this Agreement prior to the Closing from the appropriate parties or the appropriate time period for asserting the right has expired prior to the Closing without an exercise of such right. (d) Encumbrances relating to the Interests that arise under operating agreements to secure payment of amounts not yet delinquent and are of a type and nature customary in the oil and gas industry. (e) Encumbrances relating to the Interests securing payments to mechanics and materialmen and encumbrances securing payment of taxes or assessments that are, in either case, not yet delinquent or, if delinquent, are being contested in good faith in the normal course of business and Seller shall have agreed to remain responsible therefor if such arose before the Effective Time. (f) All rights to consent by, required notices to, filings with, or other actions by governmental entities in connection with the sale or conveyance of oil and gas leases or interests therein if they are customarily obtained subsequent to the sale or conveyance. (g) Conventional rights of reassignment obligating Seller to reassign its interest in any portion of the Interests to a third party in the event it intends to release or abandon such Interests prior to the expiration of the primary term or other termination of such Interests. (h) Easements, rights of way, servitudes, permits, surface leases, surface use restrictions and other surface uses and impediments on, over or in respect to any of the Interests that do not, taken as a whole, materially interfere with the operation, value or use of the Interests. (i) All rights reserved to or vested in any governmental, statutory or public authority to control or regulate any of the Interests in any manner, and all applicable laws, rules and orders of governmental authority provided that Seller's ownership or operation of the Interests is not in violation thereof. (j) The terms and conditions of all Leases and all agreements to which the Interests are subject provided that such do not operate to reduce the Net Revenue Interests attributable to the Interests. (k) Such Title Defects affecting the Interests of which Buyer fails to deliver notice to Seller in writing as provided in Section 5.05(b) below. (l) All reversionary interests set forth in Schedule 5.03(l) attached hereto. 5.04 Definition of Title Defect. As used in this Article V, the term --------------------------- Interests includes all items specifically identified on Exhibit B, and the use of the term Interest refers to any single item specifically identified on Exhibit B. As used in this Agreement, the term "Title Defect" shall mean any defect which renders title to an Interest, as herein defined, less than Marketable Title. 5.05 Title Procedure. --------------- (a) As used herein, "Title Defect Amount" shall mean, with respect to any reduction of the Net Revenue Interest set forth on Exhibit "B" hereto, an amount calculated by multiplying the percentage reduction in the Net Revenue Interest by the Allocated Value for such affected Interests; and, with respect to any Title Defect that does not cause the Net Revenue Interest set forth on Exhibit "B" to decrease or cause the Working Interest set forth on Exhibit "B" to increase, an amount determined by evaluating the portion of the Interests affected by such Title Defect, the legal effect of the Title Defect, and the potential economic effect of the Title Defect over the life of the affected Interests. The Title Defect Amount as to any particular Interest, however, shall never exceed the Allocated Value therefor. Furthermore, in the event it is determined that the Net Revenue Interests for any affected Interest is greater than set forth on Exhibit "B" hereto, the Purchase Price shall be proportionately adjusted upward by multiplying the percentage increase in the Net Revenue Interest by the Allocated Value for such affected Interest. Increases or decreases in the Working Interest without a corresponding increase or decrease in the Net Revenue Interest shall be evaluated by rerunning the economics used in determining the Allocated Value for the affected Interest to determine the impact on the Allocated Value for such affected Interests. Notwithstanding any terms contained in this Agreement to the contrary, no Title Defect shall be asserted by Buyer unless the Title Defect Amount is at least $15,000.00. This $15,000.00 threshold shall likewise apply to any upward adjustment sought by Seller under this Section 5.05(a). (b) If Buyer discovers any Title Defect, Buyer shall give Seller notice of such Title Defect no later than ten (10) days prior to the Closing Date. Such notice shall be in writing and shall include (i) a description of the Title Defect and (ii) the Title Defect Amount therefor. Buyer shall be deemed to have waived all Title Defects to which Buyer has not given timely notice to Seller thereof. (c) Seller shall notify Buyer in writing no later than five (5) days before the Closing Date whether it elects to cure the alleged Title Defect. If Seller has elected to cure the Title Defect, then the Interests subject to the Title Defect shall not be assigned at the Closing and Seller shall use commercially reasonable efforts to cure such Title Defect during a period ending sixty (60) days after Closing. Upon the completion of the cure of such Title Defect, the affected Interest shall be assigned to Buyer and the Purchase Price reduction which occurred with respect to such Title Defect shall be paid to Seller. Notwithstanding the foregoing, Seller shall be under no obligation to cure any Title Defect unless Seller otherwise expressly agrees in writing to cure such Title Defect. (d) With respect to any Title Defect that Seller elects not to cure or fails to cure within sixty days, Seller shall have the option to: (i) Exclude the Interest, including pipelines and other personal property necessary to operate the particular Interest subject to the Title Defect, in which event the Purchase Price shall be reduced by the Allocated Value of the excluded Interest; or (ii) If Buyer and Seller so agree, sell the Interest subject to such Title Defect to Buyer and the Purchase Price shall be reduced by the Title Defect Amount, or by such other amount as the parties shall agree. (e) Notwithstanding any terms contained in this Agreement to the contrary, in the event the aggregate adjustments to the Purchase Price exceed twenty percent (20%) of the Purchase Price as a result of (i) the Title Defect Amounts and (ii) the Environmental Defect Amounts, excluding exercised preferential rights to purchase, either Seller or Buyer may elect to terminate this Agreement. 5.06 Consents and Preferential Rights. -------------------------------- (a) If any third party consent to the sale and transfer of the Interests is not obtained prior to the Closing, Buyer shall not treat that portion of the Interests subject to such consent requirement as a Title Defect if such consent is customarily secured after the Closing or such consent does not materially affect the value of the affected Interests if such consent were withheld. (b) If any of the Interests are subject to a preferential right to purchase, Seller shall in a good faith, prior to the Closing Date, attempt to notify each third party which holds a preferential right to purchase covering that portion of the Interests subject thereto. If the notice period under any preferential right to purchase has not expired prior to the Closing Date, Buyer shall nevertheless purchase that portion of the Interests which may be affected by the exercise of such preferential right but the Interests subject to such unexpired preferential right shall not be treated as a Title Defect. If after the Closing any party holding a preferential right to purchase elects to exercise same, Buyer shall then coordinate with Seller in connection with the execution by such third party of a purchase and sale agreement substantially in the form hereof. Buyer shall be due any consideration paid by such third party upon the exercise of such preferential right to purchase in exchange for Buyer delivering such third party an assignment for that portion of the Interests affected by the exercise of such preferential right. 5.07 Environmental Procedure. ----------------------- (a) Prior to the Closing Date, Buyer may conduct a field inspection of the Interests and Buyer may further secure, at its sole risk, cost and expense, an environmental audit of all or any of the Interests. If obtained, Buyer shall immediately furnish a copy of such environmental audit to Seller and the contents of such environmental audit shall remain confidential unless required to be disclosed by any rule, order or governmental proceeding. (b) As used herein, "Environmental Defect" shall mean any material environmental defect relating to the Interests in the nature of environmental pollution or contamination, including pollution of the soil or water, whether surface or subsurface, or the air, and which is a violation of environmental or land use laws, rules, regulations, or orders of appropriate state or federal regulatory agencies. (c) As used herein, "Environmental Defect Amount" means the cost to remediate such Environmental Defect in accordance with applicable environmental laws. Notwithstanding any terms contained in this Agreement to the contrary, no adjustment to the Purchase Price shall be made unless the aggregate sum of all such Environmental Defect Amounts is more than Two Hundred Fifty Thousand and No/100 Dollars ($250,000.00). This $250,000.00 sum is a deductible, and if this sum is exceeded, the Purchase Price shall be adjusted by the difference between the total sum of these defects and the sum of $250,000. Notwithstanding any terms contained in this Agreement to the contrary, no Environmental Defect shall be asserted by Buyer unless the Environmental Defect Amount is at least $10,000.00. (d) If Buyer discovers any Environmental Defect, Buyer shall give Seller notice of such Environmental Defect no later than ten (10) days prior to the Closing Date. Such notice shall be in writing and shall include (i) a description of the Environmental Defect and (ii) the Environmental Defect Amount therefor. Except as otherwise specifically provided in Section 8.03(d), Buyer shall be deemed to have waived all Environmental Defects to which Buyer has not given timely notice to Seller thereof. (e) Seller shall notify Buyer in writing no later than five (5) days before the Closing Date whether it elects to cure the alleged Environmental Defect. If Seller has elected to cure the Environmental Defect, then the Interest subject to the Environmental Defect shall not be assigned at the Closing and Seller shall use commercially reasonable efforts to cure such Environmental Defect during a period ending one hundred eighty (180) days after Closing. Upon the completion of the cure of such Environmental Defect, the affected Interest shall be assigned to Buyer and the Purchase Price reduction which occurred with respect to such Environmental Defect shall be paid to Seller. Notwithstanding the foregoing, Seller shall be under no obligation to cure any Environmental Defect unless Seller otherwise expressly agrees in writing to cure such Environmental Defect. (f) With respect to any Environmental Defect that Seller elects not to cure, Seller shall have the option to: (i) Exclude the Interest, including pipelines and other personal property necessary to operate the particular Interest subject to the Environmental Defect, in which event the Purchase Price shall be reduced by the Allocated Value of the excluded Interest; or (ii) If Buyer and Seller shall so agree, sell the Interest subject to the Environmental Defect to Buyer and the Purchase Price shall be reduced by the Environmental Defect Amount or such other amount as the parties shall agree. (g) Notwithstanding any terms contained in this Agreement to the contrary, in the event the aggregate adjustments to the Purchase Price exceed twenty percent (20%) of the Purchase Price as a result of (i) the Environmental Defect Amounts and (ii) the Title Defect Amounts, excluding exercised preferential rights to purchase, either Seller or Buyer may elect to terminate this Agreement. 5.08 Casualty Loss. If, prior to the Closing, all or any portion of the ------------- Interests shall be destroyed or damaged by fire or other casualty, or if any portion of the Interests shall be taken in condemnation or under the right of eminent domain, or if proceedings for such purposes shall be pending or threatened (collectively "Casualty Losses"), except as provided below, this Agreement shall remain in full force and effect notwithstanding any such destruction or taking, and Seller shall have the option to either (i) exclude the Interest from this transaction , including pipelines and other personal property necessary to operate the particular Interest subject to the Casualty Loss, in which event the Purchase Price shall be reduced by the Allocated Value of the excluded Interest or (ii) at Closing, convey the affected Interest to Buyer and pay to Buyer all sums paid to Seller by reason of such destruction or taking. If Seller elects not to exclude such Interest, Seller shall assign, transfer and set over unto Buyer all of the right, title and interest of Seller in and to any unpaid awards or other payments arising out of such destruction or taking and the Purchase Price shall be reduced by the amount of Seller's deductible under any applicable policy of insurance or other sums not covered by Seller's insurance or any shortfall in the unpaid awards insofar as they pertain to payments arising out of the destruction or taking of the affected Interests. Seller shall not voluntarily compromise, settle or adjust any amounts payable by reason of such destruction or taking without first obtaining the written consent of Buyer. Notwithstanding the foregoing, in the event the total value of Casualty Losses exceeds twenty percent (20%) of the Purchase Price, either Buyer or Seller may elect to terminate this Agreement. 5.09 Exclusivity of Defect Process. The provisions of Sections 5.05 and ----------------------------- 5.07 shall constitute Buyer's exclusive remedy for any Purchase Price adjustment for Title Defects or Environmental Defects (collectively "Defects"). Buyer shall give Seller notice of all such Defects in accordance with the terms of these two Sections. All Defects of which Buyer fails to notify Seller shall be deemed waived by Buyer. If Buyer identifies a Defect pursuant to these two Sections, whether (a) Buyer elects not to assert the Defect, (b) Buyer asserts the Defect and receives an adjustment to the Purchase Price or Seller cures the Defect, or (c) Buyer waives the Defect, such Defect shall not be the subject of any other claim for a Purchase Price adjustment by Buyer against Seller. Further, such Defects shall not be asserted as the basis for any indemnity under Article VIII hereof; provided however, nothing in this Section 5.09 shall preclude Buyer from seeking any indemnity to which it is entitled in accordance with the provisions of either Sections 8.03(b) or 8.03(d) hereof to the extent that a matter covered by either of Sections 8.03(b) or 8.03(d) is asserted by a third party and provided that Buyer first discovers such matter following the date the notice for any such Defects is due. 5.10 Hedging Contracts. Seller is a party to the hedging contracts ------------------ identified on Schedule 5.10. It is the understanding and assumption by both Seller and Buyer that these hedging contracts can and will be assigned from Seller to Buyer at Closing. Inasmuch as it is the intent of Seller that Buyer receive the economic consequences of these hedging contracts, if for some reason they are not assignable, Seller agrees that it will cooperate with Buyer in attempting to cause the economic consequences of all of these hedging contracts to pass through Seller to Buyer. Further, if this goal of allowing Buyer to receive the economic consequences of all of these hedging contracts cannot be accomplished, then the parties agree that the Purchase Price will be reduced by the portion of the Allocated Value for the hedging contracts attributable to the hedging contracts for which Buyer will not receive the economic consequences. 5.11 Plugging and Abandonment. Upon Closing, Buyer shall assume all of ------------------------ Seller's plugging, replugging, abandonment, removal, disposal and restoration obligations associated with the Wells acquired hereunder. Such obligations being assumed shall include, but not be limited to, all necessary and proper plugging and abandonment and/or removal and disposal of all of the Wells, whether pre-existing or drilled by Seller, and all structures, personal property and equipment located on or associated with the Leases, the necessary and proper capping and burying of all associated flowlines, and any necessary disposal of naturally occurring radioactive material (NORM) or asbestos except those matters which are asserted as Environmental Defects and which remain uncured. All plugging, replugging, abandonment, removal, disposal and restoration operations shall be in compliance with applicable laws, rules and regulations and conducted in a good and workmanlike manner. 5.12 Disclaimer of Warranties. THE EXPRESS REPRESENTATIONS AND -------------------------- WARRANTIES OF SELLER CONTAINED IN THIS AGREEMENT (OR IN THE ASSIGNMENT TO BE EXECUTED PURSUANT TO THIS AGREEMENT) ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER REPRESENTATIONS AND WARRANTIES, EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, AND SELLER EXPRESSLY DISCLAIMS ANY AND ALL SUCH OTHER REPRESENTATIONS AND WARRANTIES, EXCEPT THAT SELLER WARRANTS TITLE TO THE INTERESTS BY, THROUGH, AND UNDER SELLER, BUT NOT OTHERWISE. WITHOUT LIMITATION OF THE FOREGOING, AND SUBJECT TO THE PROVISIONS OF THIS AGREEMENT, THE INTERESTS SHALL BE CONVEYED PURSUANT HERETO WITHOUT ANY WARRANTY OR REPRESENTATION, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE RELATING TO THE CONDITION, QUANTITY, QUALITY, FITNESS FOR A PARTICULAR PURPOSE, CONFORMITY TO THE MODELS OR SAMPLES OF MATERIALS, OR MERCHANTABILITY OF ANY EQUIPMENT OR ITS FITNESS FOR ANY PURPOSE, AND WITHOUT ANY OTHER EXPRESS, IMPLIED, STATUTORY, OR OTHER WARRANTY OR REPRESENTATION WHATSOEVER. BUYER SHALL HAVE INSPECTED, OR WAIVED (AND UPON CLOSING SHALL BE DEEMED TO HAVE WAIVED) ITS RIGHT TO INSPECT THE INTERESTS FOR ALL PURPOSES AND SATISFIED ITSELF AS TO THEIR PHYSICAL AND ENVIRONMENTAL CONDITION, BOTH SURFACE AND SUBSURFACE, INCLUDING, BUT NOT LIMITED TO, CONDITIONS SPECIFICALLY RELATED TO THE PRESENCE, RELEASE, OR DISPOSAL OF HAZARDOUS SUBSTANCES, SOLID WASTES, ASBESTOS OR OTHER MANMADE FIBERS OR NATURALLY OCCURRING RADIOACTIVE MATERIALS ("NORM") IN, ON, OR UNDER THE INTERESTS. BUYER IS RELYING SOLELY UPON ITS OWN INSPECTION OF THE INTERESTS, AND BUYER SHALL, EXCEPT AS PROVIDED OTHERWISE HEREIN, ACCEPT ALL OF THE SAME "AS IS, WHERE IS". WITHOUT LIMITATION OF THE FOREGOING, AND SUBJECT TO THE EXPRESS PROVISIONS OF THIS AGREEMENT, SELLER MAKES NO WARRANTY OR REPRESENTATION, EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, AS TO THE ACCURACY OR COMPLETENESS OF ANY DATA, REPORTS, RECORDS, PROJECTIONS, INFORMATION, OR MATERIALS NOW, HERETOFORE, OR HEREAFTER FURNISHED OR MADE AVAILABLE TO BUYER IN CONNECTION WITH THIS AGREEMENT, INCLUDING, WITHOUT LIMITATION, PRICING ASSUMPTIONS OR QUALITY OR QUANTITY OF HYDROCARBON RESERVES (IF ANY) ATTRIBUTABLE TO THE INTERESTS OR THE ABILITY OR POTENTIAL OF THE INTERESTS TO PRODUCE HYDROCARBONS OR THE ENVIRONMENTAL CONDITION OF THE INTERESTS OR ANY OTHER MATERIALS FURNISHED OR MADE AVAILABLE TO BUYER BY SELLER, OR BY SELLER'S AGENTS OR REPRESENTATIVES. SUBJECT TO THE EXPRESS PROVISIONS OF THIS AGREEMENT, ANY AND ALL SUCH DATA, RECORDS, REPORTS, PROJECTIONS, INFORMATION, AND OTHER MATERIALS (WRITTEN OR ORAL) FURNISHED BY SELLER OR OTHERWISE MADE AVAILABLE OR DISCLOSED TO BUYER ARE PROVIDED TO BUYER AS A CONVENIENCE AND SHALL NOT CREATE OR GIVE RISE TO ANY LIABILITY OF OR AGAINST SELLER, AND ANY RELIANCE ON OR USE OF THE SAME SHALL BE AT BUYER'S SOLE RISK TO THE MAXIMUM EXTENT PERMITTED BY LAW. Article VI ---------- CONDITIONS TO CLOSING --------------------- 6.01 Conditions to Obligations of Seller. The obligations of Seller to ----------------------------------- consummate the transactions contemplated by this Agreement are subject to the satisfaction, or waiver by Seller, of the condition that all representations, warranties and covenants of Buyer contained in this Agreement shall be true in all material respects at and as of the Closing as if such representations and warranties were made at and as of the Closing, and Buyer shall have performed and satisfied all covenants and agreements required by this Agreement to be performed and satisfied by Buyer at or prior to the Closing. St. Mary and Buyer shall provide to Seller certificates signed by an appropriate officer of St. Mary and Buyer certifying that all representations, warranties and covenants of St. Mary and of Buyer are true and correct as of the date of Closing and all conditions to which Closing is subject have been satisfied or waived. 6.02 Conditions to Obligations of Buyer. The obligations of Buyer to ---------------------------------- consummate the transactions contemplated by this Agreement are subject to the satisfaction, or waiver by Buyer, of the condition that all representations, warranties and covenants of Seller contained in this Agreement shall be true in all material respects at and as of the Closing as if such representations and warranties were made at and as of the Closing, and Seller shall have performed and satisfied all covenants and agreements required by this Agreement to be performed and satisfied by Seller at or prior to the Closing. The foregoing condition shall not apply to any representation or warranty breach to the extent that it has resulted in an adjustment of the Purchase Price or an exclusion of any Interest from this transaction. Seller, and each of them, shall provide to St. Mary and Buyer certificates signed by an appropriate officer of each party constituting Seller certifying that all representations, warranties and covenants of Seller are true and correct as of the date of Closing and all conditions to which Closing is subject have been satisfied or waived. Buyer's obligations to consummate the transactions contemplated by this Agreement are also subject to Flying J Inc.'s execution at Closing of the Indemnity Guarantee on the form attached hereto as Exhibit J. Article VII ----------- CLOSING ------- 7.01 Date of Closing. Subject to the conditions stated in this ----------------- Agreement, the consummation of the transactions contemplated by this Agreement (the "Closing") shall be held on January 29, 2003, at 10:00 a.m., or such earlier date as the parties shall agree in writing. Said date shall be referred to as the "Closing Date". Notwithstanding the foregoing, if with its good faith best efforts to obtain the credit facility Buyer is currently negotiating with Wachovia Securities, Inc., Buyer is unable to fund by the Closing Date the loan evidenced by the Note with the funds from this credit facility, Buyer may delay the Closing to a date on or before February 15, 2003, by giving written notice to Seller prior to the Closing Date. Notwithstanding the foregoing, if with its good faith best efforts Seller is unable to satisfy the conditions to closing referenced in Section 6.02, Seller may delay the Closing to a date on or before February 15, 2003, by giving written notice to Buyer prior to the Closing Date. 7.02 Place of Closing. The Closing shall be held at the offices of ---------------- Seller, or at such other place as Buyer and Seller may agree upon in writing. 7.03 Closing Obligations. At the Closing, the following events shall ------------------- occur, each being a condition precedent to the others and each being deemed to have occurred simultaneously with the others: (a) Seller shall execute, acknowledge and deliver (in sufficient counterparts to facilitate recording) the Assignment, Conveyance and Bill of Sale ("Assignment") conveying the Interests to Buyer in substantially the form attached as Exhibit "C" hereto. As appropriate, Seller shall also execute, acknowledge and deliver separate assignments of the Interests on officially approved forms, in sufficient counterparts, to satisfy applicable statutory and regulatory requirements. In addition to the Assignment, Seller and Buyer, as appropriate shall execute the Nonrecourse Secured Promissory Note in form attached hereto as Exhibit D (the "Note"), the Stock Pledge Agreement in the form attached hereto as Exhibit E, the Registration Rights Agreement in the form attached hereto as Exhibit F, the Put and Call Option Agreement in the form attached hereto as Exhibit G, the Standstill Agreement attached hereto as Exhibit H and the Share Transfer Restriction Agreement in the form attached hereto as Exhibit I. With respect to the Note, notwithstanding that the stated principal amount of the Note in Exhibit D is $72,000,000, if the Purchase Price as adjusted by the application of Article V is more or less than the $85,000,000 set forth in Section 2.01, the principal amount of the Note set forth therein and in the Stock Pledge Agreement in Exhibit E shall be adjusted to be 84.7059 percent of the adjusted Purchase Price. For example, if the Purchase Price as adjusted is $80,000,000, the principal amount of the Note shall be $67,764,720 and if the Purchase Price as adjusted is $90,000,000, the principal amount of the Note shall be $76,235,310. If the Purchase Price as adjusted by the application of Article V is more or less than the $85,000,000 set forth in Section 2.01, the principal amount of the Put Payment Price set forth in the Put and Call Option Agreement in Exhibit G shall be adjusted to equal the principal amount of the Note (and increased as set forth in the Put and Call Option Agreement) and the Call Payment Price set forth therein shall be adjusted so that it is 115.2941 percent of such adjusted Purchase Price. (b) Seller and Buyer shall execute a settlement statement (the "Preliminary Settlement Statement") prepared by Seller that shall set forth the Preliminary Amount (as hereinafter defined) and each adjustment and the calculation of such adjustments used to determine such amount. The term "Preliminary Amount" shall mean the amount of money determined as provided in Section 2.02 using for such adjustments the best information then available. After these amounts are determined in accordance with Section 2.02, and netted against one another, the party owing money to the other shall at the Closing pay the amount owed by wire transfer in readily available U.S. funds to an account as directed by the party to whom the monies are due. Any disagreement as to the Preliminary Settlement Statement shall be resolved pursuant to the provisions of Section 8.01. (c) Buyer shall deliver to Seller the number of shares of St. Mary Stock corresponding to this Purchase Price as adjusted by the application of Article V based upon one share of St. Mary Stock for each $25 of adjustment (rounded to the nearest $25 increment) and Seller shall redeliver the St. Mary Stock to Buyer pursuant to the terms of the Stock Pledge Agreement. (d) Seller shall deliver to Buyer exclusive possession of the Interests. (e) Seller shall prepare and both it and Buyer shall execute, acknowledge and deliver transfer orders or letters in lieu thereof directing all purchasers of production to make payment of proceeds attributable to production from the Interests after the Effective Time to Buyer. (f) Seller shall deliver to Buyer the original Records. Buyer agrees to furnish Seller at Seller's cost after the Closing with a copy of any of the Records upon written request by Seller. (g) If Seller is the operator of any of the Interests, Seller and Buyer shall execute the appropriate regulatory forms prepared by Seller transferring operatorship of the Interests to Buyer and Seller shall file such forms subject to the provisions of Article X hereinbelow. (h) Seller shall transfer to Buyer all proceeds from production attributable to the Interests which are currently held in suspense for any reason. Buyer shall be responsible for proper distribution of all such suspended proceeds to the parties lawfully entitled to them. (i) Seller shall provide all reasonable assistance to Buyer in its efforts to become Seller's successor operator with respect to the Interests. Article VIII ------------ OBLIGATIONS AFTER CLOSING ------------------------- 8.01 Post-Closing Adjustments. After the Closing, Seller and Buyer ------------------------- shall make available to each other all accounting records necessary for Seller to prepare within 120 days of Closing, in accordance with this Agreement, a statement (the "Final Settlement Statement") setting forth each adjustment or payment which was not finally determined as of the Closing and showing the calculation of such adjustments. As soon as practicable after receipt of the Final Settlement Statement, Buyer shall deliver to Seller a written report containing any changes which Buyer proposes be made to the Final Settlement Statement. The parties shall undertake to agree with respect to the amounts due pursuant to such post-closing adjustment no later than one hundred fifty (150) days after the Closing. If such post-closing adjustment has not been agreed to within one hundred fifty (150) days after the Closing, either party may seek to enforce any rights it claims hereunder. The date upon which such agreement is reached or upon which these adjustments are established, shall be referred to as the "Final Settlement Date." The net sums due shall be referred to herein as the "Final Settlement Amount." In the event that (i) the Final Settlement Amount is more than the Preliminary Amount, Buyer shall deliver to Seller or to Seller's account by wire transfer the amount of such difference in readily available U.S. funds as directed by Seller, or (ii) the Final Settlement Amount is less than the Preliminary Amount, Seller shall deliver to Buyer's account by wire transfer the amount of such difference in readily available U.S. funds as directed by Buyer. The payment required hereby shall be made within five (5) days after the Final Settlement Date. To the extent not accounted for in the computation of the Final Settlement Amount, all uncollected accounts receivable attributable to the Interests accruing on or after the Effective Time shall be assigned to Buyer. 8.02 Sales Taxes and Recording Fees. Buyer shall pay all sales taxes ------------------------------ occasioned by the sale of the Interests. Buyer shall pay all documentary, filing and recording fees required in connection with the filing and recording of all assignments. 8.03 Indemnification. After the Closing, Buyer and Seller shall --------------- indemnify each other as follows: (a) Including any "Environmental Claim" as defined in Section 8.03(c) hereinbelow, Buyer shall defend, indemnify and save and hold harmless Seller against any and all costs, expenses, claims, demands and causes of action of whatsoever kind or character, including court costs and attorneys' fees, arising out of any operations conducted, commitment made or any action taken or omitted with respect to the Interests, which accrue or relate to times on and after the Effective Time, subject to the provisions of Article X. (b) Excluding any "Environmental Claim" as defined in Section 8.03(c) hereinbelow, Seller shall defend, indemnify and save and hold harmless Buyer against any and all costs, expenses, claims, demands and causes of action of whatsoever kind or character, including court costs and attorneys' fees, arising out of any operations conducted, commitment made or any action taken or omitted with respect to the Interests, which accrue or relate to times prior to the Effective Time and of which Seller has been timely notified pursuant to Section 8.06. (c) Notwithstanding any terms contained in Sections 8.03(a) and (b) above, but in furtherance of same, and subject to the provisions of Article X, Buyer expressly agrees to assume all liabilities and obligations arising out of or related to, and to fully and promptly pay, perform and discharge, defend, indemnify and hold Seller harmless from and against any and all costs, expenses, claims, demands and causes of action of whatsoever kind or character, including court costs and attorneys' fees, resulting from any "Environmental Claim" as hereinafter defined arising out of any operations conducted, commitment made or any action taken or omitted at any time, whether accruing or relating to times prior to or after the Effective Time, with respect to the Interests. For purposes of this paragraph "Environmental Claim" shall mean any claim, demand or cause of action asserted by any governmental agency or any person, corporation or other entity for personal injury (including sickness, disease or death), property damage or damage to the environment resulting from the discharge or release of any chemical, material or emission into one or more of the environmental media at or in the vicinity of the Interests. (d) Notwithstanding the provisions of Section 8.03(c), if after the Closing, but in no event later than one (1) year after the Closing Date, any third party other than Buyer asserts an Environmental Claim arising from an act, omission or other event which occurred prior to the Effective Time and the out-of-pocket cost of resolving such Environmental Claim, including the cost to remediate in accordance with applicable environmental laws, or damages incurred with respect thereto, exceeds $35,000.00 net to Seller's interest (individually a "Retained Environmental Liability" and collectively the "Retained Environmental Liabilities"), Buyer may notify Seller in writing to assume such Environmental Claim relating to such Retained Environmental Liabilities in accordance with the terms of this Section 8.03(d). Such written notice shall describe the details known to Buyer of the Environmental Claim relating to such Retained Environmental Liability and Buyer shall concurrently furnish to Seller all information available to Buyer relating to such Environmental Claim. If Buyer timely notifies Seller of such Environmental Claim relating to a Retained Environmental Liability on or before one (1) year after the Closing Date, Seller shall retain the risk, cost, expense and liability related to such Retained Environmental Liability. If Buyer fails to notify Seller in writing of any Environmental Claim within the 1 year period following the Closing Date, Buyer shall have waived and forfeited Buyer's right to require Seller to retain the risk, cost, expense and/ or liability relating to such Retained Environmental Liability. It is agreed that Seller and Buyer will cooperate with each other in connection with the disposition of the Retained Environmental Liability which may require either (i) remediation, (ii) reacquisition of the affected Interests by Seller (taking into consideration the Allocated Value therefor less net profits owed or received by Buyer and the value added by subsequent development or operations), or (iii) such other disposition as Seller and Buyer shall mutually agree. Notwithstanding the foregoing, if the parties cannot agree on the disposition of or the cost to remediate or otherwise resolve a Retained Environmental Liability, the affected Interest shall be reacquired by Seller. Notwithstanding the provisions of this Section 8.03(d), Seller shall have no obligation under this section unless the aggregate value of all Retained Environmental Liabilities exceeds $500,000.00, which amount is a threshold, not a deductible, and if such threshold is exceeded, the indemnity obligation provided in this Section 8.03(d) shall be from the first dollar. (e) THE INDEMNIFICATION, RELEASE AND ASSUMPTION PROVISIONS PROVIDED FOR IN THIS AGREEMENT SHALL BE APPLICABLE WHETHER OR NOT THE LOSSES, COSTS, EXPENSES AND DAMAGES IN QUESTION AROSE SOLELY OR IN PART FROM THE GROSS, ACTIVE, PASSIVE OR CONCURRENT NEGLIGENCE, OR OTHER FAULT OF ANY INDEMNIFIED PARTY. BUYER AND SELLER ACKNOWLEDGE THAT THIS STATEMENT COMPLIES WITH THE EXPRESS NEGLIGENCE RULE AND IS CONSPICUOUS. 8.04 Further Assurances. Seller and Buyer shall execute, acknowledge ------------------- and deliver or cause to be executed, acknowledged and delivered such instruments and take such other action as may be necessary or advisable to carry out their obligations under this Agreement and under any exhibit, document, certificate or other instrument delivered pursuant hereto. 8.05 Survival. The representations, warranties, covenants, agreements -------- and indemnities contained in this Agreement shall terminate at the Closing except for the provisions of Section 3.01(t), Section 3.02(g), Section 5.09, Section 5.10 and all of Articles VIII., X. and XI. 8.06 Limitation on Seller's Liability. After the Closing, any assertion -------------------------------- by Buyer that Seller is liable under this Agreement (i) for the inaccuracy of any surviving representation or warranty, (ii) for breach of any surviving covenant, (iii) for any surviving indemnity under the terms of this Agreement other than under Section 8.03(d), or (iv) otherwise in connection with the transactions contemplated in this Agreement, must be made by Buyer in writing and must be given to Seller on or prior to the first business day following the first anniversary of the Closing Date. The notice shall state the facts known to Buyer that give rise to such notice in sufficient detail to allow Seller to evaluate the assertion of Buyer. 8.07 Transaction Not to Constitute a Reorganization for Tax Purposes. ----------------------------------------------------------------- Buyer and Seller do not intend that the transaction contemplated by this Agreement qualify as a tax-free reorganization. Consequently, Buyer and Seller agree to report this transaction on all applicable federal and state income tax returns as a taxable purchase and sale of assets. Seller represents and warrants, and covenants that neither party constituting Seller intend to and neither will distribute the St. Mary Stock they receive pursuant to this transaction for at least one calendar year after Closing, and these parties further represent that they have no present plan to make such distribution. The parties constituting Seller recognize that the shares of St. Mary Stock they will receive in the course of this transaction will be restricted in the manner set forth in the Share Transfer Restriction Agreement attached hereto as Exhibit I, and Seller agrees to be bound by these restrictions. Article IX ---------- TERMINATION OF AGREEMENT ------------------------ 9.01 Termination. This Agreement and the transactions contemplated ----------- hereby may be terminated in the following instances: (a) By Buyer if any condition set forth in Section 6.02 above shall not be satisfied on or before the Closing, or Buyer otherwise elects to terminate this Agreement pursuant to Sections 5.05(e), 5.07(g) or 5.08 of this Agreement. (b) By Seller if any condition set forth in Section 6.01 above shall not be satisfied on or before the Closing or Seller otherwise elects to terminate this Agreement pursuant to Sections 5.05(e), 5.07(g) or 5.08 of this Agreement. (c) By the mutual written agreement of Buyer and Seller. 9.02 Return of Information. If this Agreement is terminated, Buyer --------------------- shall return to Seller all information and material delivered to Buyer by Seller pursuant to the terms of this Agreement or pursuant to other agreements between Buyer and Seller. 9.03 Liquidated Damages. Subject to the delay of Closing provision of ------------------- Section 7.01, if Seller is ready, willing and able to close the transaction contemplated by this Agreement in compliance herewith and is not in material breach of this Agreement and Buyer is not otherwise entitled to avoid Closing by operation of Sections 5.05(e), 5.07(g), 5.08 or 6.02, but Buyer nevertheless elects for any reason not to close the transaction contemplated by this Agreement, then Seller shall be entitled to liquidated damages in the amount of $5,000,000 which shall be immediately due and payable in readily available funds from Buyer. Subject to the delay of Closing provision of Section 7.01, if Buyer is ready, willing and able to close the transaction contemplated by this Agreement in compliance herewith and is not in material breach of this Agreement and Seller is not otherwise entitled to avoid Closing by operation of Sections 5.05(e), 5.07(g), 5.08 or 6.01, but Seller nevertheless elects for any reason not to close the transaction contemplated by this Agreement, then Buyer shall be entitled to liquidated damages in the amount of $5,000,000 which shall be immediately due and payable in readily available funds from Seller. Buyer and Seller acknowledge that each of them will have incurred significant costs and will have invested significant time and resources investigating and negotiating this Agreement and each agrees that the specific damages provided for herein constitute reasonable liquidated damages in light of the anticipated or actual harm to Buyer or Seller that would be caused by a failure of this transaction to close for the reasons provided for in this Section 9.03. Buyer and Seller further agree that actual damages would be extremely difficult if not impossible to ascertain with precision, and therefore, both of these parties agree to the use of this liquidated damage provision which shall constitute the exclusive remedy for a failure of this transaction to close for the reasons provided for in this Section 9.03. Article X --------- INTERIM OPERATIONS ------------------ If Seller is the operator of the Interests, Seller shall continue to operate the Interests during the period between the Effective Time and 7:00 a.m. on the first day of the month following the Closing Date (the "Interim Period"), but Seller shall not have any obligation to operate the Interests after the Interim Period. Seller shall operate the Interests during the Interim Period in a prudent manner consistent with generally accepted industry practices and standards, applicable laws and regulations, and all applicable lease and other agreement terms, but shall not be liable to Buyer except for gross negligence or willful misconduct. Seller shall be entitled (i) to charge Buyer the COPAS overhead rates under existing operating agreements, or where none exist, a rate of $500.00 per well per month during the Interim Period proportionately reduced to the affected Interests and (ii) to retain any overhead fees owing or paid by any third party non-operators attributable to the operations during the Interim Period. Seller makes no representation or warranty that Buyer will become operator of any portion of the Interests, as that matter is controlled by the applicable operating agreements and governmental regulatory requirements. Article XI ---------- MISCELLANEOUS ------------- 11.01 Expenses. Except as otherwise specifically provided in this -------- Agreement, all fees, costs and expenses (including investment banking fees) incurred by Buyer or Seller in negotiating this Agreement or in consummating the transactions contemplated by this Agreement shall be paid by the party incurring the same, including without limitation, legal and accounting fees, costs and expenses. 11.02 Notices. All notices and communications required or permitted ------- under this Agreement shall be in writing and shall be effective when receive by mail, telecopy or hand delivery as follows: If to Seller: ------------ Flying J Oil & Gas Inc. and Big West Oil & Gas Inc. 333 West Center Street North Salt Lake, Utah 84054-2805 Attn: Mr. Chris J. Malan, Manager of Lands, General Counsel Telephone: 801-296-7700 Telecopy: _801-296-7888 With a copy to: Flying J Inc. 1104 Country Hills Drive Ogden, Utah 84403 Attn: Mr. Barre Burgon, General Counsel Telephone: 801-624-1402 Telecopy: 801-624-1263 If to Buyer: ----------- NPC Inc. 550 N. 31st Street, Suite 500 Billings, Montana 59101 Attn: Mr. Ron Santi, Vice President - Land Telephone: 406-245-6248 Telecopy: 406-245-9106 With a copy to: St. Mary Land & Exploration Company 1776 Lincoln St., Suite 700 Denver, Colorado 80203 Attn: Milam Randolph Pharo, Vice President, Land & Legal Telephone: 303-863-4313 Telecopy: 303-863-1040 Either party may, by written notice so delivered to the other, change the address to which notice shall thereafter be made. 11.03 Amendment. This Agreement may not be altered or amended, nor any --------- rights hereunder be waived, except by an instrument in writing executed by the party or parties to be charged with such amendment or waiver. No waiver of any term, provision or condition of this Agreement, in any one or more instances, shall be deemed to be, or construed as, a further or continuing waiver of any other term, provision or condition of this Agreement. 11.04 Assignment. No party to this Agreement may assign or delegate ---------- any portion of its duties or obligations under this Agreement without the prior written consent of all the other parties, which consent will not be unreasonably withheld. 11.05 Announcements. Seller and Buyer shall consult with each other ------------- with regard to all press releases and other announcements concerning this Agreement or the transaction contemplated hereby and, except as may be required by applicable laws or regulations of any governmental agency, neither Buyer nor Seller shall issue any such press release or make any other announcement without the prior written consent of the other party. 11.06 Generality of Provisions. The specificity of any representation, ------------------------ warranty, covenant, agreement or indemnity included or provided in this Agreement, or in any exhibit, document, certificate or other instrument delivered pursuant hereto, shall in no way limit the generality of any other representation, warranty, covenant, agreement or indemnity included or provided in this Agreement, or in any exhibit, document, certificate or other instrument delivered pursuant hereto. 11.07 Headings. The headings of the articles and sections of this -------- Agreement are for guidance and convenience of reference only and shall not limit or otherwise affect any of the terms or provisions of this Agreement. 11.08 Counterparts. This Agreement may be executed by St. Mary, Buyer ------------ and Seller in any number of counterparts and shall be binding upon each party executing same whether or not executed by all parties. Each of the counterparts shall be deemed an original instrument, but all of which together shall constitute but one and the same instrument. 11.09 References. References made in this Agreement, including use of ---------- a pronoun, shall be deemed to include where applicable, masculine, feminine, singular or plural, individuals, partnerships or corporations. As used in this Agreement, "person" shall mean any natural person, corporation, partnership, trust, estate or other entity. As used in this Agreement, "affiliate" of a person shall mean any partnership, joint venture, corporation or other entity in which such person has an interest or which controls, is controlled by or is under common control of such person. 11.10 Governing Law. This Agreement, and the transactions contemplated ------------- hereby, shall be construed in accordance with, and governed by, the laws of the State of Utah. 11.11 Entire Agreement. This Agreement (including the exhibits hereto) ---------------- constitutes the entire understanding between the parties with respect to the subject matter hereof and supersedes all negotiations, prior discussions and prior agreements and understandings relating to such subject matter. No material representation, warranty, covenant, agreement, promise, inducement or statement, whether oral or written, has been made by Seller or Buyer and relied upon by the other that is not set forth in this Agreement or in the instruments referred to herein, and neither Seller nor Buyer shall be bound by or liable for any alleged representation, warranty, covenant, agreement, promise, inducement or statement not so set forth. 11.12 Severability. If any term or provision of this Agreement shall ------------ be determined to be illegal or unenforceable, all other terms and provisions of this Agreement shall nevertheless remain effective and shall be enforced to the fullest extent permitted by applicable law. 11.13 Parties in Interest. This Agreement shall be binding upon, and ------------------- shall inure to the benefit of, the parties hereto and their respective successors and, subject to the provisions of Section 11.04, assigns. Nothing contained in this Agreement, express or implied, is intended to confer upon any other person or entity any benefits, rights or remedies. EXECUTED as of the date first above mentioned. SELLER: FLYING J OIL & GAS INC. BIG WEST OIL & GAS INC. By:/s/ JOHN R. SCALES By:/s/ JOHN R. SCALES ------------------------ ---------------------------- John R. Scales John R. Scales President President BUYER: ST. MARY: NPC INC. ST. MARY LAND & EXPLORATION COMPANY By:/s/ RONALD D. SANTI By:/s/ MILAM RANDOLPH PHARO ------------------------ ---------------------------- Ronald D. Santi Milam Randolph Pharo Vice President - Land Vice President - Land & Legal