PHILLIPS 66

Item 1.01 Entry into a Material Definitive Agreement. On August 20, 2026, Phillips 66 Company (the “Company”), a wholly owned subsidiary of Phillips 66 (“Phillips 66”), amended the Company’s accounts receivable securitization program. In connection therewith, the Company entered into the Fifth Amendment to Receivables Purchase and Financing Agreement (the “Amendment”) to amend its existing Receivables Purchase and Financing Agreement dated September 30, 2024 (as amended, the “RPFA”), among the Company, as servicer, Phillips 66 Receivables LLC, as SPE, the purchaser/lenders party thereto from time to time, PNC Capital Markets LLC, as structuring agent, and PNC Bank, National Association, as administrative agent. The Amendment amends the RPFA to, among other things, (i) establish an uncommitted facility of up to $250 million, (ii) increase the maximum committed facility size from $1.75 billion to $2 billion and (iii) extend the maturity date from September 28, 2026 to August 19, 2027. Certain of the banks and other financial institutions that are party to the RPFA and their affiliates have provided and may, from time to time, continue to provide investment banking, financial advisory, lending and/or commercial banking services to Phillips 66, the Company and their affiliates, for which they have received, and may in the future receive, customary compensation and reimbursement of expenses. The foregoing description of the Amendment is not complete and is qualified in its entirety by reference to the full text of the Amendment, which is filed as Exhibit 10.1 hereto and incorporated herein by reference.

Item 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The disclosure set forth in Item 1.01 of this Current Report on Form 8-K is incorporated by reference into this Item 2.03.