Delek US Holdings, Inc. operates as an integrated downstream energy company that operates in petroleum refining, logistics, and convenience store retailing businesses. The company operates in three segments: Refining, Logistics, and Retail. The Refining segment owns and operates two refineries in Tyler, Texas, and El Dorado, Arkansas; and produces various petroleum-based products used in transportation and industrial markets. The Logistics segment gathers, transports, and stores crude oil, as well as markets, distributes, transports, and stores refined products. It also offers crude oil transportation services for terminalling and marketing services; and markets light products using third-party terminals. This segment owns approximately 400 miles of crude oil transportation pipelines, 123 miles of refined product pipelines, 600-mile crude oil gathering system, and associated crude oil storage tanks with an aggregate of approximately 2.6 million barrels of active shell capacity. The Logistics segment serves oil companies, independent refiners and marketers, jobbers, distributors, utility and transportation companies, and independent retail fuel operators. The Retail segment markets gasoline, diesel, and other refined petroleum products, as well as convenience merchandise. As of May 8, 2013, this segment operated 373 retail fuel and convenience stores under the MAPCO Express, MAPCO Mart, Discount Food Mart, Fast Food and Fuel, East Coast, Delta Express, and Favorite Markets brands. The company was founded in 2001 and is headquartered in Brentwood, Tennessee. Delek US Holdings, Inc. is a subsidiary of Delek Petroleum Ltd.