Tallgrass Energy Partners, LP acquires, owns, develops, and operates midstream energy assets in North America. It operates in three segments: Crude Oil Transportation & Logistics, Natural Gas Transportation & Logistics, and Processing & Logistics. The Crude Oil Transportation & Logistics segment engages in the ownership and operation of the Pony Express System, a crude oil pipeline serving the Bakken Shale, Denver-Julesburg, and Powder River Basins, as well as other nearby oil producing basins. The Natural Gas Transportation & Logistics segment owns and operates interstate natural gas pipelines and integrated natural gas storage facilities with approximately 4,655 miles of transportation pipelines in Wyoming, Colorado, Kansas, Missouri, and Nebraska. This segment provides its services to on-system customers, including third-party local distribution companies, industrial users, and other shippers. The Processing & Logistics segment owns and operates natural gas processing, treating, and fractionation facilities that produce natural gas liquids and residue gas for sale in local wholesale markets or delivers into pipelines for transportation to additional end markets. This segment also provides water business services primarily to the oil and gas exploration and production industry. The company was founded in 2013 and is based in Leawood, Kansas.