Sunoco LP

2. Summary of Significant Accounting Policies

Interim Financial Statements

The accompanying interim consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”). Pursuant to Regulation S-X, certain information and disclosures normally included in the annual consolidated financial statements have been condensed or omitted. The interim consolidated financial statements and notes included herein should be read in conjunction with the consolidated financial statements and notes included in our Annual Report on Form 10-K for the year ended December 31, 2023 filed with the Securities and Exchange Commission (“SEC”) on February 16, 2024 and in Exhibit 99.1 to the Partnership's Current Report on Form 8-K filed with the SEC on October 24, 2024.

Significant Accounting Policies

As of September 30, 2024, there have been no changes in the Partnership's significant accounting policies from those described in Exhibit 99.1 to the Partnership's Current Report on Form 8-K filed with the SEC on October 24, 2024.

Defined Benefit Plans

We estimate pension and other postretirement benefit obligations and costs based on actuarial valuations. The annual measurement date for our pension and other postretirement benefit plans is December 31. The actuarial valuations require the use of certain assumptions including discount rates, expected long-term rates of return on plan assets and expected rates of compensation increase. Changes in these assumptions are primarily influenced by factors outside our control.

Foreign Currency Translation

The functional currencies of our foreign subsidiaries are the local currencies of the countries in which the subsidiaries are located. The assets and liabilities of our foreign subsidiaries with local functional currencies are translated to U.S. dollars at period-end exchange rates, and income and expense items are translated to U.S. dollars at weighted-average exchange rates in effect during the period. These translation adjustments are included in accumulated other comprehensive income ("AOCI") in the equity section of the consolidated balance sheets. Upon the sale or liquidation of our investment in a foreign subsidiary, translation adjustments that have historically accumulated in AOCI related to that subsidiary are released from AOCI and reported as part of the gain or loss on sale. Gains and losses on foreign currency transactions are included in other income (expense), net in the consolidated statements of operations.

Investments in Unconsolidated Affiliates

We own interests in certain joint ventures with Energy Transfer that are accounted for by the equity method. In general, we use the equity method of accounting for an investment for which we exercise significant influence over, but do not control, the investee’s operating and financial policies. An impairment of an investment in an unconsolidated affiliate is recognized when circumstances indicate that a decline in the investment value is other than temporary.

Motor Fuel and Sales Taxes

Certain motor fuel and sales taxes are collected from customers and remitted to governmental agencies either directly by the Partnership or through suppliers. The Partnership’s accounting policy for wholesale direct sales to dealers, distributors and commercial customers is to exclude the collected motor fuel tax from sales and cost of sales.

For retail locations where the Partnership holds inventory, including commission agent locations, motor fuel sales and motor fuel cost of sales include motor fuel taxes. Such amounts were $33 million and $73 million for the three months ended September 30, 2024 and 2023, respectively, and $133 million and $209 million for the nine months ended September 30, 2024 and 2023, respectively. Merchandise sales and cost of merchandise sales are reported net of sales tax in our consolidated statements of operations.