Exhibit 5.1

 
 
 
 
 
November 4, 2010
 

SM Energy Company
1775 Sherman Street, Suite 1200
Denver, Colorado  80203

 
Re:
Registration Statement on Form S-8 for Additional Shares of Common Stock Issuable Under Equity Incentive Compensation Plan

Ladies and Gentlemen:

We have acted as counsel to SM Energy Company, a Delaware corporation (the “Company”), in connection with the filing of the Registration Statement on Form S-8 (the “Registration Statement”) with respect to the registration under the Securities Act of 1933, as amended, of a total of 1,645,050 additional shares of the Company’s common stock, par value $.01 per share (the “Shares”), issuable from time to time pursuant to awards granted under the Company’s Equity Incentive Compensation Plan, as amended (the “Plan”).
 
In connection therewith, we have examined, and relied upon the accuracy of factual matters contained in, the Plan and originals and copies, certified or otherwise identified to our satisfaction, of such other agreements, documents, corporate records and instruments as we have deemed necessary for the purposes of the opinion expressed below.  In giving this opinion, we are assuming the authenticity of all instruments presented to us as originals, the conformity with the originals of all instruments presented to us as copies and the genuineness of all signatures.  We are also assuming that the Shares will continue to be duly and validly authorized on the dates that the Shares are issued to participants pursuant to the terms of the Plan, and, upon the issuance of any of the Shares, the total number of shares of common stock of the Company issued and outstanding, after giving effect to such issuance of such Shares, will not exceed the total number of shares of common stock that the Company is then authorized to issue under its certificate of incorporation.
 
Based upon the foregoing, we are of the opinion that the Shares, when issued pursuant to awards granted pursuant to the terms of the Plan and upon payment of the exercise or purchase price, if applicable, in accordance with the terms of the Plan, will be legally issued, fully paid and nonassessable.
 
 
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SM Energy Company
November 4, 2010
Page 2

 
This opinion is limited to the matters expressly stated herein.  No implied opinion may be inferred to extend this opinion beyond the matters expressly stated herein.  We do not undertake to advise you of any changes in the opinion expressed herein resulting from changes in law, changes in facts or any other matters that might occur or be brought to our attention after the date hereof.
 
We hereby consent to the filing of this opinion as an exhibit to the Registration Statement.
 
                         Very truly yours,

                        /s/ BALLARD SPAHR LLP