Exhibit 23.1

CONSENT OF INDEPENDENTREGISTEREDPUBLIC ACCOUNTINGFIRM

We consent to the incorporation by referencein the following Registration Statements:

•ConocoPhillipsForm S-3File No. 333-240978

•ConocoPhillipsForm S-4File No. 333-130967

•ConocoPhillipsForm S-4File No. 333-250183

•ConocoPhillipsForm S-8File No. 333-130967

•ConocoPhillipsForm S-8File No. 333-98681

•ConocoPhillipsForm S-8File No. 333-116216

•ConocoPhillipsForm S-8File No. 333-133101

•ConocoPhillipsForm S-8File No. 333-159318

•ConocoPhillipsForm S-8File No. 333-171047

•ConocoPhillipsForm S-8File No. 333-174479

•ConocoPhillipsForm S-8File No. 333-196349

•ConocoPhillipsForm S-8File No. 333-250183

of our reports dated February 17, 2022, with respect to the consolidated financial statements of

ConocoPhillips, and the effectiveness of internal control over financial reporting of ConocoPhillips,

included in this Annual Report (Form 10-K) of ConocoPhillips for the year ended December 31, 2021.

/s/ Ernst & Young LLP

Houston, Texas

February 17, 2022