Beijing, China
China Oilfield Services Ltd, also known as COSL, is a comprehensive offshore oilfield service provider in Asia. The company operates and manages 19 seismic survey vessels, 62 drilling units (including 47 self-elevating drilling platforms and 15 semi-submersible drilling platforms), and over 240 nearshore work vessels. It also owns advanced equipment such as the HAIJING, HIPULSE, XUANJI, XUANYUE, and HAIPENG for oilfield technical services including seismic exploration, logging, mud systems, directional drilling, cementing, and well intervention. COSL was founded in 2002 and is listed on the Hong Kong Stock Exchange with stock code 2883. The company has a strong focus on safety, environmental protection, and employee welfare.
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