China National Offshore Oil Corporation, the largest offshore oil and gas producer in China, was established as a state-owned mega company with the approval of the State Council on February 15,1982. The Company's registered capital is RMB 113.8 billion, with 5 listed companies. The main business covers oil & gas exploration and development, professional technical services, refining product sales and fertilizers, natural gas production and power generation, and financial services, as well as new energy business like offshore wind power. The Company was ranked 56th in 2024 Fortune Global 500.