Western Refining, Inc. (Western) is a crude oil refiner and marketer of refined products. The Company operates through four segments: refining, Northern Tier Energy LP (NTI), Western Refining Logistics, LP (WNRL) and retail. Its refining segment owns and operates over two refineries in the Southwest that process crude oil and other feedstocks into gasoline, diesel fuel, jet fuel and asphalt. Its NTI segment owns and operates refining and transportation assets and operates and supports retail convenience stores in the Upper Great Plains region of the United States. Its WNRL segment owns and operates terminal, storage, transportation and wholesale assets consisting of a fleet of crude oil and refined product truck transports and wholesale petroleum product operations in the Southwest region. WNRL's primary customer is its refineries in the Southwest. Its retail segment operates retail convenience stores and unmanned commercial fleet fueling locations located in the Southwest.