NuStar Energy L.P. Declares Conditional Special Distribution

NuStar Energy L.P. (NYSE: NS) today announced that the board of directors of NuStar GP, LLC, the general partner of its general partner, has declared a special distribution of $0.212 per NuStar Energy L.P. common unit (the “special distribution”), to be paid on May 2, 2024 to holders of record of NuStar Energy L.P. common units as of April 26, 2024. Payment of the special distribution is subject to and conditioned upon holders of NuStar Energy L.P.’s common units approving its previously announced acquisition by Sunoco LP (NYSE: SUN) at NuStar Energy L.P.’s special meeting, which will be held at 9:00 a.m. Central Time on May 1, 2024, and the merger agreement with respect to the acquisition not having been terminated. If approval of the pending acquisition is not obtained at the special meeting (including due to the special meeting being postponed, adjourned or canceled) or the merger agreement with respect to the acquisition is terminated, the special distribution will not be paid until a date, and to holders of record, later determined by the board of directors of NuStar GP, LLC, or it may not be paid at all. The details of the special meeting have been outlined in the definitive proxy statement filed by NuStar Energy L.P. on April 3, 2024 with the Securities and Exchange Commission and mailed to holders of common units entitled to notice of, and to vote at, the special meeting.

NuStar Energy L.P. is an independent liquids terminal and pipeline operator. NuStar Energy L.P. currently has approximately 9,500 miles of pipeline and 63 terminal and storage facilities that store and distribute crude oil, refined products, renewable fuels, ammonia and specialty liquids. The partnership’s combined system has approximately 49 million barrels of storage capacity, and NuStar Energy L.P. has operations in the United States and Mexico. For more information, visit NuStar Energy L.P.’s website at www.nustarenergy.com and its Sustainability page at https://sustainability.nustarenergy.com/.

This release serves as qualified notice to nominees under Treasury Regulation Sections 1.1446-4(b)(4) and (d) and 1.1446(f). Please note that 100% of NuStar Energy L.P.’s distributions to foreign investors are attributable to income that is effectively connected with a United States trade or business. 100% of the distribution is in excess of cumulative net income for purposes of Treasury Regulation Section 1.1446(f)-4(c)(2)(iii). Accordingly, all of NuStar Energy L.P.’s distributions to foreign investors are subject to federal income tax withholding at the highest effective tax rate for individuals and corporations, as applicable. Nominees, and not NuStar Energy L.P., are treated as the withholding agents responsible for withholding on the distributions received by them on behalf of foreign investors.