Power of Attorney for SEC Filings

This filing indicates that Shannon E. Young III, EVP, CFO of DEVON ENERGY CORP/DE, has granted a power of attorney to Adam M. Vela, Marcus G. Bolinder, Christopher J. Kirt, and Edward T. Highberger. This authorization allows the appointed individuals to act on behalf of Mr. Young in executing and filing necessary documents with the U.S. Securities and Exchange Commission (SEC), including Forms 3, 4, and 5, related to Section 16(a) of the Securities Exchange Act of 1934. The attorneys-in-fact are empowered to manage EDGAR filings, obtain necessary codes, and execute forms on Mr. Young's behalf. This power of attorney supersedes any previous similar authorizations and remains in effect until revoked in writing. The document is effective as of May 7, 2026.