Delek US Holdings, Inc. is a diversified energy business focused on petroleum refining, marketing and supply of refined products, and retail marketing of fuel and general merchandise. The refining segment operates a high conversion, independent refinery, with a design crude distillation capacity of 60,000 barrels per day, in Tyler, Texas. The marketing and supply segment markets refined products through its terminals in Abilene, Texas and San Angelo, Texas as well as other third party terminals. The retail segment markets gasoline, diesel and other refined petroleum products and convenience merchandise through a network of company-operated retail fuel and convenience stores, operated under the MAPCO Express®, MAPCO Mart(TM), East Coast®, Discount Food Mart(TM), Fast Food and Fuel(TM) and Favorite Markets® brand names.