Form of Amendment dated September 30, 2021 to Severance Compensation Agreements dated March 9, 2020 and amended May 23, 2021, of certain executive officers of Cimarex Energy Co

Pursuant to Section 8.10 of the Agreement, this letter is to document the agreement of the Company and the Executive that, for all purposes of the Agreement, the definition of “Average Incentive Bonus” as set forth in Section 1.01(c) of the Agreement shall be replaced in its entirety as follows:

(c)    Average Incentive Bonus. The amount of Annual Incentive Bonus compensation that the Executive would have received with respect to the Company’s fiscal year during which the Date of Termination occurs (i) if the Date of Termination occurs during the fiscal year in which the Change in Control occurs, based on the actual level of performance achievement as determined by the Board or the Compensation Committee of the Board prior to the Change in Control for the Annual Incentive Bonus of the Executive with respect to the fiscal year during which the Date of Termination occurs or (ii) if the Date of Termination occurs after the end of the fiscal year in which the Change in Control occurs, based on the average Annual Incentive Bonus paid to the Executive for the immediately preceding two fiscal years.

If you agree with the foregoing, please countersign and return a copy of this letter to the undersigned.