DCP Midstream Partners, LP, together with its subsidiaries, engages in gathering, compressing, treating, processing, transporting, storing, and selling natural gas in the United States. It also transports, stores, and sells propane in wholesale markets; and produces, fractionates, transports, stores, and sells natural gas liquids (NGLs) and condensate. The company operates in three segments: Natural Gas Services, NGL Logistics, and Wholesale Propane Logistics. The Natural Gas Services segment operates Northern Louisiana system that gathers, process, and transports natural gas; Southern Oklahoma system; Colorado system; Wyoming system that covers 1,300 miles of natural gas gathering pipelines that cover approximately 4,000 square miles in the Powder River Basin in Wyoming; and Michigan system. It also operates Discovery system, East Texas system, Southeast Texas system, and Crossroads system. The NGL Logistics segment transport NGLs from natural gas processing plants to fractionation facilities, a petrochemical plant, and a third party underground NGL storage facility. It operates the Seabreeze, Wilbreeze, Wattenberg, and Black Lake interstate pipelines, as well as a NGL storage facility in Marysville, Michigan. The Wholesale Propane Logistics segment owns and operates a propane marine import terminal; a leased propane marine terminal; a propane pipeline terminal; and six propane rail terminals, as well as has access to various open access pipeline terminals. This segment sells its propane to retail propane distributors. DCP Midstream Partners, LP was founded in 2005 and is based in Denver, Colorado.