Tesoro Corp. is a Fortune 100 company and an independent refiner and marketer of petroleum products. Tesoro, through its subsidiaries, operates six refineries in the western United States with a combined capacity of 850,000 barrels per day. Tesoro’s retail-marketing system includes over 2,250 retail stations under the Tesoro, Shell, ARCO, Exxon, Mobil and USA Gasoline brands.For more information about Tesoro, visit the company’s website at www.tsocorp.com

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