Jeff A. Stevens

Western Refining, Inc. engages in the business of refining and marketing crude oil and refined products. The company was founded by Paul L. Foster on September 16, 2005 and is headquartered in El Paso, TX.

Vomaris Innovations, Inc. manufactures surgical and medical instruments and apparatus. It provides touting wound-healing bandage to patients. The company was founded by Lawrence A. Schneider and Jeffrey B. Skiba in 2007 and is headquartered in Tempe, AZ.

Western Refining Logistics LP owns, operates, develops and acquires terminals, storage tanks, pipelines and other logistics assets. The company was founded on July 17, 2013 and is headquartered in San Antonio, TX.

Part of Marathon Petroleum Corp., Western Refining Logistics GP LLC is a company that provides logistics services. The company is based in El Paso, TX.

Part of Marathon Petroleum Corp., Northern Tier Energy GP LLC provides oil and gas refining, retail and transportation services. The company is based in Ridgefield, CT. David L. Lamp has been the CEO of the company since 2014.

Part of Marathon Petroleum Corp., Western Refining GP LLC is an American company.

Northern Tier Energy LP engages in refining, retail, and logistics operations. The company was founded by Mario E. Rodriguez and Hank Kuchta on October 21, 2011 and is headquartered in Tempe, AZ.

Northern Tier Energy LLC engages in oil and gas refining, retail, and pipeline operations. Its products include gasoline, diesel, jet fuel, and asphalt which are then marketed to resellers and consumers. The company was founded on June 23, 2010 and is headquartered in Phoenix, AZ.

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.