Company list
- Jilin Oilfield Company
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- Tuha Oilfield Company
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- Yumen Oilfield
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- CNPC Greatwall Drilling Co., Ltd.（GWDC）
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- CNPC Chuanqing Drilling Engineering Company Limited（CCDC）
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- Bureau of Geophysical Prospecting INC.,China National Petroleum Corporation（BGP INC）
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- China National Logging Corporation（CNLC）
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- Research Institute of Petroleum Exploration and Development（RIPED）
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- CNPC Engineering Technology R&D Company Ltd.（CPET）
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- PetroChina Company Limited Petrochemical Research Institute（PRI）
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- China Huanqiu Contracting & Engineering Co.,Ltd.（HQC）
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- China Petroleum Pipeline Engineering Co., Ltd.（CPP）
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- CNPC Jichai Power Co. Ltd（JCPC）
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- China Petroleum Planning and Egineering Institute（CPPEI）
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- CNPC Economics & Technology Research Institute（ETRI）
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- CNPC Research Institute of Safety and Environmental Technology（RISE）
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