Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the Registration Statement (Form S-8) pertaining to the 2023 Omnibus Stock and Performance Incentive Plan of ConocoPhillips of our reports dated February 16, 2023, with respect to the consolidated financial statements of ConocoPhillips and the effectiveness of internal control over financial reporting of ConocoPhillips included in its Annual Report (Form 10-K) for the year ended December 31, 2022, filed with the Securities and Exchange Commission.

/s/ Ernst & Young LLP

Houston, Texas

May 18, 2023