CORNERSTONE MEMBERS
Tesoro
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Tesoro Corporation, a Fortune 100 company, is an independent refiner and marketer of petroleum products. Tesoro, through its subsidiaries, operates seven refineries in the western United States with a combined capacity of approximately 665,000 barrels per day. Tesoro's retail-marketing system includes over 870 branded retail stations, of which over 380 are company operated under the Tesoro, Shell, Mirastar and USA Gasoline brands.
