Western Refining, Inc. (Western) is an independent crude oil refiner and marketer of refined products. The Company operates through four business segments: refining, Northern Tier Energy LP (NTI), Western Refining Logistics, LP (WNRL) and retail. The Company's refining segment owns and operates two refineries in the Southwest that process crude oil and other feedstocks primarily into gasoline, diesel fuel, jet fuel and asphalt. The NTI segment owns and operates refining and transportation assets and operates and supports retail convenience stores primarily in the Upper Great Plains region of the United States. The WNRL segment owns and operates terminal, storage, transportation and provides related services primarily to its refining segment in the Southwest. The retail segment operates retail convenience stores and unmanned commercial fleet fueling locations located in the Southwest. The retail convenience stores sell gasoline, diesel fuel and convenience store merchandise.