近两年来．中国石油天然气集团公司（以下简称”中油集团”）内部进行了大规模的重组改制．新组建的中国石油股份公司实现境外成功上市，油气主业与辅业完全分开独立运营。目前中油集团公司未上市企业主要包括以下部分：一是油田、炼化企业未上市部分，主要是工程技术服务、生 In the past two years. China National Petroleum Corporation (hereinafter referred to as “CNOOC”) within the large-scale restructuring and restructuring. The newly formed PetroChina joint-stock company successfully listed overseas, and the main oil and gas industry and auxiliary industry are completely separate and independent operations. At present, CNOOC unlisted enterprises mainly include the following parts: First, the unlisted parts of oilfields and refining enterprises are mainly engineering and technical services, students