NuStar Energy ESG Presentation Deck

● Our Diverse and Experienced Board of Directors Provides Effective Oversight While Our Dedicated Executives Ensure Safe Day-to-day Operations Our Board of Directors: • Is composed of a majority of independent directors Bill Greehey, Chairman of the Board Brad Barron, President & CEO Dan Bates Bill Burnett Fully Clingman Dan Hill Jelynne LeBlanc-Burley Bob Munch Grady Rosier BOARD OVERSIGHT & EXECUTIVE MANAGEMENT Government Healthcare • Bring diverse perspectives, expertise and experience from: Energy & commodities ✓ Mental health & wellness Financial & banking ✓ Technology ✓ Transportation 78% Independent NuStar • Evaluate the Board and its committees each year • Participate in compensation, audit and nominating/governance committees comprised solely of independent directors Responsibly Resilient Our Senior Executive Team: Brad Barron, President & CEO Mary Rose Brown, EVP & CAO Danny Oliver, EVP- Business Development & Engineering Amy Perry, EVP- Strategic Development & GC Tom Shoaf, EVP & CFO Jorge del Alamo, SVP & Controller Manish Kapoor, SVP & CIO Mark Trexler, SVP- Operations & HSE 50% Women & Minorities 31

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