NuStar Energy L.P. (NYSE: NS) and NuStar GP Holdings, LLC (NYSE: NSH) today announced that they filed their respective Annual Reports on Form 10-K for the year ended December 31, 2017 with the U.S. Securities and Exchange Commission. The filings can be viewed at NuStar Energy L.P.’s and NuStar GP Holdings, LLC’s websites at www.nustarenergy.com and www.nustargpholdings.com under the Investors section.

Upon request, unitholders and bondholders may receive a hard copy of both companies’ Annual Reports on Form 10-K (including complete audited financial statements) free of charge. Requests should be communicated in writing to NuStar Energy L.P.’s and NuStar GP Holdings, LLC’s Investor Relations Department or Corporate Secretary, 19003 IH-10 West, San Antonio, TX 78257, by calling their toll free number at (800) 866-9060 or emailing investorrelations@nustarenergy.com or corporatesecretary@nustarenergy.com.

NuStar Energy L.P., a publicly traded master limited partnership based in San Antonio, is one of the largest independent liquids terminal and pipeline operators in the nation. NuStar Energy L.P. currently has more than 9,400 miles of pipeline and 81 terminal and storage facilities that store and distribute crude oil, refined products and specialty liquids. The partnership’s combined system has more than 96 million barrels of storage capacity, and the partnership has operations in the United States, Canada, Mexico, the Netherlands, including St. Eustatius in the Caribbean, and the United Kingdom. For more information, visit NuStar Energy L.P.'s website at www.nustarenergy.com.

NuStar GP Holdings, LLC is a publicly traded limited liability company that owns the general partner interest, an approximate 11 percent common limited partner interest and the incentive distribution rights in NuStar Energy L.P. For more information, visit NuStar GP Holdings, LLC’s website at www.nustargpholdings.com.