PetroChina Company Limited (PetroChina) is an oil and gas producer and seller in the People's Republic of China. The Company operates in four segments: Exploration and Production, Refining and Chemicals, Marketing, and Natural Gas and Pipeline. The Company is engaged in a range of petroleum and natural gas related activities, including the exploration, development, production and sale of crude oil and natural gas; the refining of crude oil and petroleum products, as well as the production and marketing of basic petrochemical products, derivative chemical products and other chemical products; the marketing and trading of refined oil products, and the transmission of natural gas, crude oil and refined oil products, as well as the sale of natural gas. On August 23, 2010, Arrow Energy Holdings Pty Ltd acquired 100% equity interest in Arrow Energy Limited.