What are the five domestic offshore oil suppliers?

Are you asking about five companies with bonded oil business qualifications? China has the earliest combustion, followed by Sinopec Zhonghai, Zhongchang Combustion, Shenzhen Guanghui and Sinopec Zhoushan. In fact, there are six companies now, and PetroChina Pacific also obtained this qualification at the end of 20 10. In addition, at the beginning of 20 1 1, five more companies applied for this qualification, with registered capital exceeding 1 billion. No qualification of bonded oil is required, only offshore oil supply is required, and that is more. For example, there are 28 qualified companies in Tianjin Port. Qingdao is mainly "Qingdao Zhonglian Oil Transportation Fuel Co., Ltd." and "China Fuel Supply Qingdao Branch".