Power of Attorney for Adam M. Vela, SVP & General Counsel of Devon Energy

This SEC Form 3 filing documents a Power of Attorney executed by Adam M. Vela, Senior Vice President and General Counsel of Devon Energy Corporation, on May 7, 2026. The power of attorney authorizes four individuals - Adam M. Vela, Marcus G. Bolinder, Christopher J. Kirt, and Edward T. Highberger - to act as attorneys-in-fact for filing Section 16 reports with the SEC. The authorization specifically covers executing and filing Forms 3, 4, and 5 related to securities transactions, managing EDGAR system access and filings, and performing all necessary actions to ensure compliance with Section 16 reporting requirements. The document supersedes any previous powers of attorney and remains in effect unless revoked in writing. The filing indicates that Mr. Vela currently holds no securities in Devon Energy as of the reporting date.