Petróleo Brasileiro S.A. - Petrobras explores, produces, and sells oil and gas in Brazil and internationally, including China, the United States, the Americas, Asia, Europe, and Singapore. It operates through three segments: Exploration and Production; Refining, Transportation & Marketing; and Gas & Low Carbon Energies. The Exploration and Production segment supplies crude oil, natural gas liquids, and natural gas primarily to domestic refineries. The Refining, Transportation & Marketing segment handles refining, logistics, transport, acquisition, and export of crude oil, trading of oil products, and production of fertilizers, and holds interests in petrochemical companies. The Gas & Low Carbon Energies segment covers natural gas and electricity logistics and trading, liquefied natural gas transportation and trading, thermoelectric power generation, renewable energy, low carbon business, natural gas processing, and biodiesel production. The company also engages in prospecting, drilling, refining, processing, trading, and transporting crude oil from onshore and offshore fields, shale and other rocks, as well as oil products, natural gas, and other liquid hydrocarbons, and conducts research, development, production, transportation, distribution, and trading of energy. Incorporated in 1953, it is headquartered in Rio de Janeiro, Brazil.