Colombia's Transportadora de Gas Internacional S.A. E.S.P. (TGI) engages in the operation and maintenance of a natural gas pipeline system, comprising 4,000km of pipelines and 14 gas compression stations, with a total installed capacity of 172,060HP. The company also owns 290km of highways in Peru, through Contugas, a joint venture with parent company Empresa de Energía de Bogotá S.A. E.S.P. (EEB). The company's gas transportation system runs from Northeastern La Guajira department to Western Valle del Cauca, and then from Los Llanos Orientales to El Huila, in the Southeast, and El Tolima, in Central-West. TGI supplies natural gas to residential, industrial and commercial end-users, including Colombia's main cities (Bogotá, Medellín and Cali). Two of its recent projects are the Cusiana-Apiay-Ocoa expansion project, and the Cusiana-Vasconia phase III pipeline project. The latter involves a capacity increase of 20Mf3/d with an investment of approximately US$31mn. TGI was founded in 2007 after the EEB group acquired the state-run Ecogas's assets.