CNOOC.CNOOC is a large state-owned enterprise established on February 15, 1982, with approval from the State Council. It is China's largest offshore oil and gas producer and operator. The company has a registered capital of RMB 113.8 billion. Its primary business segments encompass oil and gas exploration and development, specialized technical services, refining, chemical processing, and sales, natural gas and power generation, and financial services. It is also actively developing new energy businesses such as offshore wind power. Key products include: oil and gas exploration and development, specialized technical services, refining, chemical processing, and sales, natural gas and power generation, and financial services.