作为与国计民生关系十分紧密的石油工业来讲．中国石油天然气集团公司、中国石化集团公司、中国海洋石油总公司三大公司通过重组已全部在境外上市，完成了资本运营。那么，面对加入ＷＴＯ后更加成熟的市场．三大石油公司将遭遇什么样的战略挑战已不是遥远不可及的问题。从根本 As a very close relationship with national economy and livelihood of the oil industry is concerned. China National Petroleum Corporation, China Petrochemical Corporation, China National Offshore Oil Corporation, the three major companies through restructuring have all been listed overseas, completed the capital operation. Well, in the face of a more mature market after joining the WTO. What the three major oil companies will face the strategic challenge is not far out of reach. From the root