NuStar Energy Investor Conference Presentation Deck

NuStar WEST COAST RENEWABLE FUELS STORAGE We Handle and Store a Significant Proportion of the Total Low- Carbon Fuels Volumes Utilized in California, the Largest Driving State in the Nation 7% BIO NuStar's Proportionate Share of California's Renewable Fuels Market (Full-Year 2020 Total Volume¹) 18% D BIODIESEL 1 - Most recent available data ETHANOL 28% RENEWABLE DIESEL ★ We expect these percentages to increase through 2023, along with associated EBITDA, as we complete additional projects presently in planning or under construction Source: California Air Resource Board (CARB) 24

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