Is Dalian No.7 Petroleum Factory a state-owned enterprise or a central enterprise?

Dalian No.7 Petroleum Plant is a state-owned enterprise. According to the inquiry data, after the founding of New China, it was nationalized as No.7 Northeast Petroleum Factory and No.7 Dalian Petroleum Factory of China Ministry of Petroleum Industry, and 65438-0998 was placed under the management of China Petroleum and Natural Gas Group. Dalian No.7 Petroleum Factory, a large state-owned enterprise, is very advanced in petroleum system technology and technology. The quality of the refined oil produced is good, giving priority to Beijing and other places. Its economic benefit is very good, and it belongs to the first-class level in Dalian.