Item 7.01 Regulation FD Disclosure.

On November 16, 2022, NuStar Energy L.P., a Delaware limited partnership (the "Company"), entered into a purchase agreement with EIG Nova Equity Aggregator, L.P. and a purchase agreement with FS Energy and Power Fund (collectively, the "Purchase Agreements"), pursuant to which the Company agreed to purchase an aggregate of 6,900,000 units of its Series D Cumulative Convertible Preferred Units (the "Units"), at a price per Unit of $32.73, or an aggregate purchase price of approximately $226 million. The transactions contemplated by the Purchase Agreements closed on November 22, 2022, and the Company funded the transactions using borrowings under its unsecured revolving credit agreement.


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