Sinopec Group
Sinopec Group is a super-huge petroleum and petrochemical enterprise group reorganized on the basis of the former China Petrochemical Corporation in July 1998. It is a state-owned company established solely by the Chinese government, the state-authorized investment institution and the state holding company. The registered capital of the company is ¥231.6 billion, ranking it second place in the Fortune 500 companies in 2015.
China National Petroleum Corporation
China National Petroleum Corporation is an important state-owned enterprise and an integrated international energy company. Its main business focus is on oil and gas, engineering and technical services, petroleum engineering construction, petroleum equipment manufacturing, financial services and new energy development. It is one of China's major oil and gas producers and suppliers. In 2015, it was ranked third in a comprehensive ranking of the world's 50 largest oil companies, and ranked forth in the Fortune 500 largest companies.
China National Offshore Oil Corporation
China National Offshore Oil Corporation is the super huge state-owned enterprise directly under the State-owned Assets Supervision and Administration Commission of the State Council, and it is China's largest offshore oil and gas producer. The company was founded in 1982 and is headquartered in Beijing. Since its establishment, CNOOC has maintained a swift development pace, and has developed from a purely upstream company engaged in oil and gas to a world-class energy company with Chinese characteristics.