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Consent of DeGolyer and MacNaughton
September 1, 2010
Cimarex Energy Co.
1700 Lincoln Street, Suite 1800
Denver, CO 80203-4518
Ladies and Gentlemen:
We hereby consent to the reference to DeGolyer and MacNaughton and to the reference to the review of proved oil and gas reserves as of December 31, 2009, estimated by Cimarex Energy Company (Cimarex) that were presented in our letter report dated January 29, 2010, under the headings "Business," "Properties—Oil and Gas Properties and Reserves," and "Notes to the Consolidated Financial Statements—Unaudited Supplemental Oil and Gas Disclosures, Oil and Gas Reserve Information" and to the filing as an exhibit of our letter report dated January 29, 2010 in the amended Annual Report on Form 10-K/A of Cimarex for the fiscal year ended December 31, 2009.
We further consent to the incorporation by reference of our letter report dated January 29, 2010 in the Registration Statements on Form S-3 (No. 333-162051) of Cimarex Energy Co. and to the use of our name under the heading of "Experts" in the registration statement.
Very truly yours, | ||
/s/ DeGolyer and MacNaughton | ||
DeGOLYER and MacNAUGHTON Texas Registered Engineering Firm F-716 |