Andeavor, through its subsidiaries, operates as an independent petroleum refining, logistics, and marketing company in the United States. The company operates in three segments: Marketing, Logistics, and Refining. The Marketing segment sells gasoline and diesel fuel through retail, branded, and unbranded channels. This segment operates a network of 3,255 retail stations under the ARCO, Shell, Mobil, and SUPERAMERICA brands. The Logistics segment gathers and transports crude oil by pipelines, as well as by trucks. It operates approximately 13 million barrels of crude oil, feedstock, blendstock, refined product, and asphalt storage tanks. The Refining segment buys and refines crude oil and other feed stocks into transportation fuels, such as gasoline and gasoline blend stocks, jet fuel, and diesel fuel, as well as other products, including heavy fuel oils, liquefied petroleum gas, petroleum coke, calcined coke, and asphalt. It also sells refined products in the bulk market principally to independent unbranded distributors, other refining and marketing companies, utilities, railroads, airlines, and marine and industrial end-users in the western United States. This segment owns and operates 10 petroleum refineries with a combined crude oil capacity of approximately 1,157 thousand barrels per day. The company was formerly known as Tesoro Corporation and changed its name to Andeavor in August 2017. Andeavor was founded in 1968 and is headquartered in San Antonio, Texas.