1, PetroChina: PetroChina, the full name of China Oil and Gas Group, is one of the largest oil and gas producers, suppliers and energy companies in China. It is a large state-owned central enterprise directly managed by the central government, mainly engaged in oil and gas exploration, development, production, sales and petrochemical business. PetroChina has extensive oil and gas reserves and production capacity at home and abroad, and is an important pillar of China's energy industry.
2. Sinopec: Sinopec, full name of Sinopec Group, is one of the largest petrochemical enterprises and petroleum products suppliers in China. It is a super-large petrochemical enterprise group reorganized and established by the state on the basis of the original sinopec group from 65438 to 0998. China Petrochemical Company is mainly engaged in petroleum refining, production and sales of petrochemical products and petrochemical engineering construction. With extensive oil refining and chemical production capacity at home and abroad, it is one of the leading enterprises in China petrochemical industry.
3. CNOOC: CNOOC, the full name of China Offshore Oil Corporation, is one of the largest offshore oil and gas producers and suppliers in China. China is a super-large state-owned enterprise directly under the State-owned Assets Supervision and Administration Commission of the State Council, mainly engaged in offshore oil and gas exploration, development, production and sales. CNOOC has extensive reserves and production capacity of offshore oil and gas resources at home and abroad, and is committed to the exploration and development of offshore oil and the development and utilization of offshore energy.