NuStar Energy Investor Conference Presentation Deck

NuStar We Expect the Impact of the Asset Sale, Combined With the Financial Strength and Flexibility We Have Built Over Time, to Drive Strong Results for Full-Year 2021 Full-year 2021 Results Adjusted EBITDA $680-710MM* DCF Coverage ~2.0x* Debt-to-EBITDA Ratio ~4.0x* Expect to Fund All NuStar's 2021 Spending From Our Internally Generated Cash Flows *- After taking into account sale of terminals in the Northeast, Illinois and Florida, which we expect to close Q4 2021. Please see Appendix for reconciliations of non-GAAP financial measures to their most directly comparable GAAP measures. 7

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