NuStar Energy L.P. (NYSE: NS) ("NuStar" or the "Partnership") today announced that it has priced an underwritten public offering of 8,000,000 of its 8.50% Series A Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units (the "Preferred Units") at a price of $25.00 per unit. The Partnership has granted the underwriters a 30-day option to purchase up to an additional 1,200,000 Preferred Units from the Partnership at the public offering price less the underwriting discount. Distributions on the Preferred Units will be payable from and including the date of original issue to, but not including, December 15, 2021, at a rate of 8.50% per annum of the stated liquidation preference of $25.00. On and after December 15, 2021, distributions on the Preferred Units will accumulate at a percentage of the $25.00 liquidation preference equal to an annual floating rate of three-month LIBOR plus a spread of 6.766%. The offering is expected to close on or about November 25, 2016, subject to customary closing conditions. NuStar expects to receive aggregate net proceeds from the sale of the Preferred Units of approximately $193.3 million (including estimated offering expenses but not including the underwriters' option to purchase additional Preferred Units). NuStar intends to use the net proceeds of the offering for general partnership purposes, including the funding of future capital expenditures and to repay amounts outstanding under its revolving credit agreement. Wells Fargo Securities, LLC, Merrill Lynch, Pierce, Fenner & Smith Incorporated and UBS Securities LLC are acting as joint-booking managers for the offering. J.P. Morgan Securities LLC and RBC Capital Markets, LLC are acting as senior co-managers for the offering. FBR Capital Markets & Co., BB&T Capital Markets, a division of BB&T Securities, LLC, Citigroup Global Markets Inc., Mizuho Securities USA Inc., and PNC Capital Markets LLC are acting as co-managers for the offering. A copy of the prospectus supplement and accompanying base prospectus relating to this offering may be obtained from any of the underwriters, including Wells Fargo Securities, LLC, 608 2nd Avenue South, Suite 1000, Minneapolis, Minnesota 55402, Attention: WFS Customer Service, telephone: (800) 645-3751; Merrill Lynch, Pierce, Fenner & Smith Incorporated, 200 North College Street, NC1-004-03-43, Charlotte, North Carolina 28255, Attention: Prospectus Department, telephone: (800) 294-1322; and UBS Securities LLC, 1285 Avenue of the Americas, New York, New York 10019, Attention: Prospectus Specialist, telephone: (888) 827-7275. You may also obtain these documents for free when they are available by visiting the SEC's website at www.sec.gov. This news release does not constitute an offer to sell or a solicitation of an offer to buy the securities described herein, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction. The offering may be made only by means of a prospectus and related prospectus supplement meeting the requirements of Section 10 of the Securities Act of 1933, as amended.