China Oilfield Services

+86-10-8452 2046

China Oilfield Services (COSL) is a majority owned subsidiary of CNOOC Group.  COSL operates offshore drilling rigs, seismic vessels, engineering survey vessels, accommodation rigs, and a variety of other marine support vessels in the Asian offshore market.  COSL’s integrated services cover all aspects of offshore oil exploration, development, and production.

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