PetroChina Co Ltd is a China-based company operating in the Oil, Gas & Consumable Fuels industry. The company is headquartered in Beijing, Beijing and currently employs 370,799 full-time employees. The company went public on April 6, 2000. PetroChina Co Ltd is a China-based company principally engaged in the production and distribution of oil and natural gas. The firm primarily operates its businesses through five segments. The Oil, Gas and New Energy segment is engaged in the exploration, development, production, transportation, and marketing of crude oil and natural gas, as well as new energy business. The Refining, Chemicals and New Materials segment is engaged in the refining of crude oil and petroleum products, the production and marketing of primary petrochemical products, derivative petrochemical products, other chemical products, and new materials business. The Marketing segment is engaged in the marketing of refined products and non-oil products, as well as trading activities. The Natural Gas Sales segment is engaged in the transportation and sales of natural gas. The Head Office and Other segment is engaged in cash management and financing activities, corporate center functions, research and development, and other business services.