Cnooc

China National Offshore Oil Corporation is the largest offshore oil and gas producer in China. Headquartered in Beijing, CNOOC was founded in 1982. After over 30 years of reform and development, it has become an international energy company with a prominent core business, a complete industrial chain, and business spread across 40 countries and regions. The five main business segments of the Company are oil & gas exploration and development, engineering and technical services, refining and marketing, natural gas and power generation, and financial services.