CNOOC has a specialized technical service system which focuses on offshore oil and gas exploration and development and covers extensive fields. China Oilfield Services Limited (COSL), Offshore Oil Engineering Co., Ltd. (COOEC) and CNOOC Energy Technology & Services Limited (CNOOC EnerTech), the three subsidiaries of CNOOC, are capable of providing services throughout each phase of offshore oil and gas exploration, development and production .
In recent years, the three companies seized the opportunity of the rapid development of CNOOC’s upstream business to develop themselves. By improving their equipment level, adhering to independent innovation and cost control, they have enhanced their competence, actively widened the overseas market and obtained outstanding achievements. The three companies are steadily developing themselves into competitive international service companies in the energy industry, which has advanced technology and can develop in both the domestic and international markets.
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