NuStar Energy L.P. (NYSE: NS) today announced that its Board of Directors has declared a fourth quarter 2013 distribution of $1.095 per unit. The fourth quarter distribution will be paid on February 14, 2014 to holders of record as of February 10, 2014.

A conference call with management is scheduled for 9:00 a.m. CT on Wednesday, February 5, 2014, to discuss the fourth quarter 2013 earnings results, which will be released earlier that morning, and provide an updated outlook for the company for 2014. Investors interested in listening to the presentation may call 800/622-7620, passcode 32985588. International callers may access the presentation by dialing 706/645-0327, passcode 32985588. The company intends to have a playback available following the presentation, which may be accessed by calling 800/585-8367, passcode 32985588. International callers may access the playback by calling 404/537-3406, passcode 32985588. A live broadcast of the conference call will also be available on the company's Web site at www.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 currently has 8,643 miles of pipeline; 89 terminal and storage facilities that store and distribute crude oil, refined products and specialty liquids; and 50% ownership in a joint venture that owns a terminal and an asphalt refinery with a throughput capacity of 74,000 barrels per day. The partnership's combined system has approximately 97 million barrels of storage capacity, and NuStar has operations in the United States, Canada, Mexico, the Netherlands, including St. Eustatius in the Caribbean, the United Kingdom and Turkey. For more information, visit NuStar Energy L.P.'s Web site at www.nustarenergy.com.

This release serves as qualified notice to nominees under Treasury Regulation Sections 1.1446-4(b)(4) and (d). Please note that 100% of NuStar's distributions to foreign investors are attributable to income that is effectively connected with a United States trade or business. Accordingly, all of NuStar'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, are treated as the withholding agents responsible for withholding on the distributions received by them on behalf of foreign investors.

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