G. Scott Spendlove

Andeavor engages in the refining and marketing of petroleum products. It operates through the following segments: Refining, Logistics, and Marketing. 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 and petroleum coke for sale in bulk markets to a wide variety of customers within Andeavor's markets. The logistics segment includes crude oil and natural gas gathering assets, natural gas and natural gas liquid processing assets, and crude oil and refined products terminalling, transportation and storage assets acquired from Andeavor and third parties. The Marketing segment sells transportation fuels through branded and unbranded channels. Its brand portfolio includes ARCO, Shell, Exxon, Mobil, USA Gasoline, Rebel, and Tesoro. The company was founded by West V. Robert, Jr. in 1964 and is headquartered in San Antonio, TX.

Unocal Corp. explores, develops, produces, and markets crude oil and natural gas. The firm also produces geothermal energy in Indonesia and the Philippines and makes petroleum coke, graphite's and silicon carbide materials. The company was founded on October 17, 1890 and is headquartered in El Segundo, CA.

Ultramar Diamond Shamrock Corp. owns and operates petroleum & oil refineries. The company owns seven refineries, located in California, Texas, Oklahoma, Colorado, Michigan, and Quebec, Canada. The company was established in 1996 and is headquartered in San Antonio, TX.

Andeavor Logistics LP engages in the ownership, operation, development and acquisition of crude oil and refined products logistics assets. It operates through the following segments: Terminalling & Transportation, Gathering & Processing and Wholesale. The Terminalling & Transportation segment consists of regulated common carrier products pipeline running from Salt Lake City, Utah to Spokane, Washington and a jet fuel pipeline to the Salt Lake City International Airport. The Gathering & Processing segment includes crude oil and natural gas pipeline gathering systems in the Bakken Shale/Williston Basin area of North Dakota and Montana and the Green River Basin, Uinta Basin and Vermillion Basin in the states of Utah, Colorado and Wyoming, the Delaware Basin in the Permian Basin area of West Texas and Southern New Mexico, the four corners area of Northwestern New Mexico, and consists of crude trucking operations and gas processing and fractionation complexes. The Wholesale segment consists of bulk petroleum distribution facilities and a fleet of refined product delivery trucks. The company was founded on December 3, 2010 and is headquartered in San Antonio, TX.

Part of Marathon Petroleum Corp., Tesoro Logistics GP LLC is a private company that owns, operates, develops, and acquires crude oil and refined products logistics assets. The company is based in Wilmington, DE.