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Phillips 66

For the period ended Dec 31, 2024. Filed Feb 21, 2025.

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A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2024 · Filed Feb 21, 2025

PSX$250.70-0.9%Stored close · as of Nov 10, 2026

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Reports of Independent Registered Public Accounting Firm

To the Board of Directors and Shareholders of Phillips 66

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Phillips 66 (the Company) as of December 31, 2024 and 2023, the related consolidated statements of income, comprehensive income, changes in equity, and cash flows, for each of the three years in the period ended December 31, 2024, and the related notes (collectively referred to as the “financial statements”). In our opinion, based on our audits and, for 2023 and 2022, the report of Deloitte & Touche LLP, the financial statements present fairly, in all material respects, the financial position of the Company at December 31, 2024 and 2023, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2024, in conformity with U.S. generally accepted accounting principles.

We did not audit the 2023 and 2022 financial statements of DCP Midstream, LP (DCP LP), a consolidated subsidiary, whose financial statements reflect total assets constituting 14% of the Company’s total assets as of December 31, 2023 and total revenues constituting 4% and 3% of the Company’s revenues and other income for the years ended December 31, 2023 and 2022, respectively. Those statements were audited by Deloitte & Touche LLP, whose report has been furnished to us, and our opinion, insofar as it relates to the amounts included for DCP LP for 2023 and 2022, is based solely on the report of Deloitte & Touche LLP.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of December 31, 2024, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework), and our report dated February 21, 2025 expressed an unqualified opinion thereon.

These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits and the report of Deloitte & Touche LLP provide a reasonable basis for our opinion.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current period audit of the financial statements that was communicated or required to be communicated to the Audit and Finance Committee and that: (1) relates to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective or complex judgments. The communication of the critical audit matter does not alter in any way our opinion on the financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Impairment assessment of WRB Refining LP, an equity method investment
Description of the MatterAs discussed in Note 1 to the financial statements, the Company assesses investments in unconsolidated affiliates accounted for using the equity method for impairment when events or changes in circumstances indicate a loss in value that is other than temporary may have occurred. As discussed in Note 9 to the financial statements, the Company owns a 50% interest in WRB Refining LP (WRB), a joint venture that owns the Wood River and Borger refineries. The carrying value of the Company’s investment in WRB was $2.3 billion as of December 31, 2024. WRB’s earnings are subject to variability as they depend on, among other things, market conditions, the utilization of its refineries, cost levels and other factors relevant to its operations. Accordingly, significant judgment is required in determining whether events or changes in circumstances indicate a loss in value may have occurred that is indicative of a possible impairment.We determined the Company’s process for evaluating whether an other than temporary impairment of its investment in WRB has occurred is a critical audit matter because of the judgment and assumptions management uses to perform its identification and evaluation of such factors.
How We Addressed the Matter in Our AuditWe obtained an understanding, evaluated the design and tested the operating effectiveness of the Company’s controls for the assessment of potential other than temporary impairments in WRB, which included identifying and evaluating events or changes in circumstances that could indicate a potential other than temporary impairment. We exercised professional judgment based on our knowledge of the industry and WRB’s business to assess the appropriateness of management’s conclusion that no such events existed or changes in circumstances had occurred as of December 31, 2024. In our evaluation, among other things, we performed inquiries of management and evaluated WRB’s prior and current operating earnings to assess its ability to sustain an earnings capacity that justifies the Company’s recorded investment in WRB and to assess the Company’s ability to recover its investment in WRB. In addition, we evaluated potential contrary evidence to management’s conclusion, considering both internally and externally available information, such as demand for WRB’s products, gross margins, costs, refinery utilization, and other operating information, as well as comparable market multiples.

/s/Ernst & Young LLP

We have served as the Company’s auditor since 2011.

Houston, Texas

February 21, 2025

To the Board of Directors and Shareholders of Phillips 66

Opinion on Internal Control over Financial Reporting

We have audited Phillips 66’s internal control over financial reporting as of December 31, 2024, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) (the COSO criteria). In our opinion, Phillips 66 (the Company) maintained, in all material respects, effective internal control over financial reporting as of December 31, 2024, based on the COSO criteria.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheets of the Company as of December 31, 2024 and 2023, the related consolidated statements of income, comprehensive income, changes in equity, and cash flows, for each of the three years in the period ended December 31, 2024, and the related notes, and our report dated February 21, 2025 expressed an unqualified opinion thereon, based on our audit and the report of Deloitte & Touche LLP.

The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting included under the heading “Assessment of Internal Control Over Financial Reporting” in the accompanying “Report of Management.” Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects.

Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control Over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ Ernst & Young LLP

Houston, Texas

February 21, 2025

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