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China National Offshore Oil Corporation is China's largest offshore oil and gas producer.
Founded in 1982, the company is headquartered in Beijing.After more than 30 years of reform and development, CNOOC has developed into an international energy company with outstanding main business, complete industrial chain and business in more than 40 countries and regions.The company has formed five business segments, including oil and gas exploration and development, professional technical services, refining and sales, natural gas and power generation, and financial services, and its sustainable development ability has been significantly improved.In 2019, the company was ranked No. 63 in the "Fortune 500 Companies" and No. 31 in the "World's 50 Largest Oil Companies" by Petroleum Intelligence Week (PIW).The CNOOC brand ranks 17th in global oil and gas brand value and 8th in brand value added.