Ecopetrol S.A. is an integrated energy company operating through four segments: Exploration and Production; Transport and Logistics; Refining and Petrochemicals; and Energy Transmission and Toll Roads Concessions. The Exploration and Production segment explores for and produces oil and gas. The Transport and Logistics segment transports crude oil, motor fuels, fuel oil, and other refined products, including diesel, jet fuel, and biofuels. The Refining and Petrochemicals segment refines and processes crude oil at the Barrancabermeja and Cartagena refineries, and distributes natural gas and LPG. The Energy Transmission and Toll Roads Concessions segment supplies transmission and information technology and telecommunications services, and designs, develops, constructs, operates, and maintains road and energy infrastructure projects. The company operates in Colombia, the United States, China, Brazil, India, Singapore and other Asian countries, Peru, Chile, other South American countries, Central America and the Caribbean, and Europe. It was formerly known as Empresa Colombiana de Petróleos and changed its name to Ecopetrol S.A. in June 2003. Ecopetrol S.A. was incorporated in 1948 and is based in Bogotá, Colombia.