
	Tesoro Corporation, a Fortune 100 company, is an independent refiner and marketer of petroleum products. Tesoro, through its subsidiaries, operates six refineries in the western United States with a combined capacity over 845,000 barrels per day. Tesoro&#39;s retail-marketing system includes over 2,200 retail stations under the Tesoro&reg;, Shell&reg;,&nbsp;ARCO&reg; and USA Gasoline&trade; brands, of which 595 are company operated .
