China Oilfield Services Ltd

Company Profile

• Business description

  China Oilfield Services Ltd is engaged in the provision of oilfield services including drilling services, well services, marine support services, and geophysical acquisition and surveying services. It operates in four segments namely the drilling services segment offers oilfield drilling services, the well services segment offers logging and downhole services, the marine support services segment is engaged in the transportation of materials, supplies, and personnel to offshore facilities, moving and positioning drilling structures, and the geophysical acquisition and surveying services segment is engaged in the provision of offshore seismic data acquisition and marine surveying. It generates the majority of its revenue from Well services segment.

• Contact

  201 Haiyou Avenue
  Yanjiao Economic & Technological Development Zone
  Hebei Province
  Sanhe City065201
  CHN

  T: +86 1084521685

  https://www.cosl.com.cn

• Sector

  Energy

  Stock type

  Sensitive

• Industry

  Oil & Gas Equipment & Services

  Fiscal Year End

  31 December 2025

  Employees

  15,509