Delek US Holdings, Inc. is a diversified downstream energy company with assets in petroleum refining, logistics and convenience store retailing. The refining segment consists of refineries operated in Tyler, Texas and El Dorado, Arkansas with a combined nameplate production capacity of 140,000 barrels per day. Subsidiaries of Delek US Holdings, Inc. also own 62.4 percent (including the 2 percent general partner interest) of Delek Logistics Partners, LP. Delek Logistics Partners, LP ( NYS: DKL ) is a growth-oriented master limited partnership focused on owning and operating midstream energy infrastructure assets.