NuStar Energy L.P. and NuStar GP Holdings, LLC to Announce First Quarter 2015 Earnings Results on April 22, 2015

NuStar Energy L.P. (NYSE: NS) and NuStar GP Holdings, LLC (NYSE: NSH) today announced that they will host a joint conference call on Wednesday, April 22, 2015 at 9:00 a.m. Central Time to discuss the first quarter 2015 earnings results, which will be released earlier that morning. The conference call may be accessed by dialing 800/622-7620, reservation passcode 18527528. International callers may access the conference call by dialing 706/645-0327, reservation passcode 18527528. The companies intend to have a playback available following the conference call, which may be accessed by calling 800/585-8367, reservation passcode 18527528. International callers may access the playback by calling 404/537-3406, reservation passcode 18527528.

Persons interested in listening to the live presentation or a replay via the internet may access the presentation directly by clicking here or by logging on to either NuStar Energy L.P.’s Web site at www.nustarenergy.com or NuStar GP Holdings, LLC’s Web site at www.nustargpholdings.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 currently has 8,643 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 approximately 93 million barrels of storage capacity, and NuStar 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 Web site at www.nustarenergy.com.

NuStar GP Holdings, LLC is a publicly traded limited liability company that owns the two percent general partner interest, a 12.9 percent limited partner interest and the incentive distribution rights in NuStar Energy L.P. For more information, visit NuStar GP Holdings, LLC’s Web site at www.nustargpholdings.com.

NuStar Energy, L.P., San AntonioInvestors, Chris Russell, Treasurer and Vice President Investor RelationsInvestor Relations: 210-918-3507orMedia, Mary Rose Brown, Executive Vice President,Corporate Communications: 210-918-2314Web site: http://www.nustarenergy.com