Investor Presentaiton

6 Refining Overview Expanded Footprint centered around Mid-Continent, Southwest, Rocky Mountain and Pacific Northwest with 678,000 BPD oil processing capacity West Region Puget Sound Refinery (Anacortes, WA) ■ 149,000 BPD capacity ■ Crude slate: Canadian mixed sweet and sour and Alaskan North Slope crude ■ Distributes to high-margin markets in WA, OR, and British Columbia Navajo Refinery (Artesia, NM) ■ 100,000 BPD capacity ■ Crude slate: Permian sweet and sour crude Distributes to high-margin markets in AZ, NM, and west TX Parco Refinery (Sinclair, WY) ■ 94,000 BPD capacity Crude slate: Canadian heavy and Rockies sweet crude Distributes to high-margin markets in greater Rocky Mountain region Woods Cross Refinery (Salt Lake City, UT) ■ 45,000 BPD capacity Crude slate: Regional sweet and heavy crude Distributes to high-margin markets in UT, ID, NV, WY, and eastern WA Casper Refinery (Casper, WY) ■ 30,000 BPD capacity ◉ Crude slate: Rockies sweet Mid-Continent Region El Dorado Refinery (El Dorado, KS) ■ 135,000 BPD capacity ■ Crude slate: WCS, Bakken and Permian sour crude Distributes to high-margin markets in CO, and Mid- Continent states Tulsa Refinery (Tulsa, OK) 125,000 BPD capacity ■ Crude slate: Domestic sweet with up to 10,000 BPD of WCS crude ■ Distributes to Mid-Continent states ☐ Integrated refinery with base oil and lubricant production Distributes to high-margin markets in greater Rocky Mountain region HF Sinclair

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