As an integrated oil giant, Petrochina Co. Ltd (PTR) 's refineries were largely out-dated (straight cracking).

作为综合石油巨头，中石油(PTR)的工厂为老式炼油厂(直通裂解)。

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Huiyuan oil field Machinery co., Ltd. lies in Zhengzhou, China, is a professional company integrated with scientific research, production and service of oil field equipments.

汇源油田设备有限公司位于中国郑州，是集科研、生产、销售服务为一体的油田设备专业公司。

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Newjiuding Oil Machinery co., Ltd. lies in Baoji, China, is a professional company integrated with scientific research, production and service of Oil field equipments.

新九鼎石油机械有限公司位于中国宝鸡，是集科研、生产、销售服务为一体的油田设备专业公司。

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Rosneft is buying TNK- BP, which is a vertically integrated oil company co-owned by British oil firm BP and a group of Russian billionaires known as AAR.

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