Exhibit 23.4

ENGINEER’S CONSENT

We consent to incorporation by reference in the Registration Statements (File Nos. 333-68694, 333-47672, 333-44702, 333-104922, 333-104933, 333-103679, 333-127630 and 333-159796) on Form S-8, and the Registration Statement (File No. 333-156025) on Form S-3 of Devon Energy Corporation of the reference to our reports for Devon Energy Corporation, which appears in the December 31, 2009 annual report on Form 10-K of Devon Energy Corporation.

AJM Petroleum Consultants
By:	/s/ Robin G. Bertram
	Robin G. Bertram, P.Eng.

February 17, 2010