Tesoro Corporation is a Fortune 100 and a Fortune Global 500 company headquartered in San Antonio, Texas, with 2008 annual revenues of $28.3 billion, and approximately 5,600 employees. Tesoro is an independent refiner and marketer of petroleum products, operating seven refineries in the Western United States with a combined rated crude oil capacity of approximately 664,000 barrels per day. Tesoro’s retail-marketing system includes over 870 branded retail gas stations, of which more than 380 are company-operated under the Tesoro, Shell, Mirastar and USA Gasoline brands. Tesoro was... founded in 1968 by Dr. Robert V. West Jr, as a company primarily engaged in petroleum exploration and production . In 1969, Tesoro began operating its first refinery, near Kenai, Alaska. Tesoro would eventually become the first Fortune 500 company ever headquartered in San Antonio. In the late 1990s, Tesoro grew through a series of acquisitions and initiatives that created Tesoro Corporation – the company focuses on a single core business: petroleum refining and marketing.
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| NYSE symbol: | TSO |
| Founded: | 1964 |
| Headquarters: | San Antonio, Texas |
| Annual revenue: | $28,309,000,000 |
| Net income: | $278,000,000 |
| Operating income: | $471,000,000 |
| Market cap: | $6,600,000,000 |
| Industries: | Petroleum, Petroleum Refineries, Petroleum industry |