PetroChina Company Limited (PetroChina) is a producer of crude oil and natural gas in China. 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, transportation, storage and marketing of crude oil and petroleum products; the production and marketing of basic petrochemical products, derivative chemical products and other chemical products, and the transmission and storage of crude oil, refined products and natural gas, as well as the sale of natural gas. Substantially all of its crude oil and natural gas reserves and production-related assets are located in China. During the year ended December 31, 2007, PetroChina completed the acquisition of the remaining interest in Jinzhou Petrochemical Co., Ltd. (Jinzhou Petrochemical), Liaohe Jinma Oilfield Co., Ltd. (Liaohe Jinma) and Jilin Chemical Industrial Company Limited (Jilin Chemical).