United States securities and exchange commission logo October 25, 2022 Bradley C. Barron President and Chief Executive Officer NuStar Energy L.P. 19003 IH-10 West San Antonio, Texas 78257 Re: NuStar Energy L.P. Definitive Proxy Statement on Schedule 14A Filed March 10, 2022 File No. 001-16417 Dear Bradley C. Barron: We have completed our review of your filing. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Sincerely, Division of Corporation Finance Disclosure Review Program