X0203 0000876661 NEW YORK STOCK EXCHANGE LLC 0001110805 NuStar Energy L.P. 001-16417

19003 Interstate Highway 10 San Antonio TX TEXAS 78257

(210) 918-2000 8.50% Series A Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units; 7.625% Series B Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units; 9.00% Series C Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units representing limited partner interests; 7.625% Fixed- to- Floating Rate Subordinated Notes due 2043 17 CFR 240.12d2-2(a)(1) Victoria Paper Manager, Market Watch and Proxy Compliance 2024-06-03