Exhibit 23.6

CONSENT OF INDEPENDENT PETROLEUM ENGINEERS AND GEOLOGISTS

As independent petroleum engineers, we hereby consent to the inclusion of information included or incorporated by reference in this Registration Statement on Form S-4 of Cimarex Energy Co. (the “Registration Statement”) with respect to the information from our audit dated January 23, 2018, attached as Exhibit 99.1 to the Annual Report on Form 10-K of Resolute Energy Corporation for the fiscal year ended December 31, 2017, in reliance upon the report of this firm and upon the authority of this firm as experts in petroleum engineering. We hereby further consent to the reference to this firm under the heading “Experts” in the joint proxy statement/prospectus, which is a part of the Registration Statement.

	NETHERLAND, SEWELL & ASSOCIATES, INC.
	By:	/s/ C.H. (Scott) Rees III, P.E.
		C.H. (Scott) Rees III, P.E.
		Chairman and Chief Executive Officer
Dallas, Texas
January 10, 2019