China Oilfield Services Limited is an integrated oil field services provider operating in the Asian offshore market. The company’s four main services divisions: Geophysical Services, Drilling Services, Well Services, and Marine and Transportation Services, cover the exploration, development, and production phases of the oil and gas industry. China Oilfield Services operates in offshore China and the Asia-Pacific regions, and extend internationally to more than thirty countries in Southeast Asia, the Middle East, the Americas, Europe, Africa, and the Far East. Diversify your portfolio and buy 2883.HK stocks.