February 18, 2026

Devon Energy Corporation

333 W. Sheridan Ave.

Oklahoma City, OK 73102

Ladies and Gentlemen:

We consent to the incorporation by reference in the registration statements (File Nos. 333-68694, 333-47672, 333-44702, 333-104922, 333-104933, 333-103679, 333-127630, 333‑159796, 333-182198, 333-204666, 333-218561, 333-249859, 333-260962, and 333‑265472) on Form S-8 and the registration statement (File No. 333-270269) on Form S-3 of Devon Energy Corporation (the “Company”) of our report for the Company and the references to our firm and said report, in the context in which they appear, in the Annual Report on Form 10-K of the Company for the year ended December 31, 2025 (the “Form 10‑K”), which report is included as an exhibit to the Form 10-K.

Very truly yours,

/s/ DeGolyer and MacNaughton

DeGOLYER and MacNAUGHTON

Texas Registered Engineering Firm F-716