摘要
Yanchang Petroleum (Group) Co., Ltd. is a slate-owned enterprise under the Shaanxi provincial administration and also one of the four companies qualified to explore and
Yanchang Petroleum （Group） Co., Ltd, is a state-owned enterprise under the Shaanxi provincial administration and also one of the four companies qualified to explore and develope oil and gas in China. Being a complex that integrates businesses like oil and gas exploration, refinery, chemical engineering, oil and gas storage and transportation, engineering and construction, and machine manufacturing,
