China Oilfield Services Limited
CHOLF
Other OTC1.17
USD
+0.17
- -
ISIN
CNE1000002P4
Return %
Stock
S&P500
1Y
51.95
26.53
3Y
9.35
76.60
5Y
23.16
80.11
Capital Structure
FRC
•
in mil. unless spec.Working Capital
FRC
•
in mil. unless spec.Growth Rates
FRC
•
in mil. unless spec.Quarterly Revenue
FRC
•
in mil. unless spec.Quarterly Earnings Per Share
FRC
•
in mil. unless spec.Quarterly Dividends Per Share
FRC
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in mil. unless spec.- CEO
- Shunqiang Zhao
- Full Time Employees
- 15,509
- Sector
- Energy
- Industry
- Oil & Gas Equipment & Services
- Address
- 201 Haiyou Avenue Sanhe People's Republic of China 065201
- IPO Date
- Jan 5, 2010
- Website
- cosl.com.cn
- Similar Companies
- Business
- China Oilfield Services Limited (COSL) is a leading integrated provider of offshore oilfield services, offering a comprehensive range of solutions across the exploration, development, and production phases of the oil and gas industry. The company operates through four primary segments: Geophysical Services, which include marine seismic acquisition, data processing and interpretation, geo-technical surveys, marine environmental investigations, subsea engineering, deep water engineering surveying, groundwork and foundation construction engineering, offshore engineering support, consulting services, and equipment manufacturing; Drilling Services, encompassing jack-up drilling rigs, semi-submersible drilling rigs, modular rigs, land rigs, lift boats, accommodation rigs, casing and tubing running, pipe inspection, and repair services; Well Services, featuring onshore and offshore logging, drilling and completion fluids, directional drilling, cementing, well completion and workover, stimulation, and oilfield production optimization; and Marine Support Services, providing anchor handling, towing for drilling rigs and barges, oil lifting, cargo transportation, standby, firefighting, rescue, oil spill response, and other marine support activities. COSL maintains advanced proprietary equipment such as Haijing, Haimai, Xuanjing, Xuanyue, and Haihong for geophysical exploration, logging, mud logging, directional drilling, cementing, and workover services, and operates one of Asia's largest and most diverse fleets, including 19 seismic and engineering survey vessels, 62 drilling rigs, and 240 oilfield services vessels. Founded in 2001 as a subsidiary of China National Offshore Oil Corporation (CNOOC), COSL is headquartered in Yanjiao Economic Development Zone, Hebei Province, China, with key operational addresses in Sanhe City and Beijing. The company serves major oil and gas clients primarily in offshore projects, with geographic operations spanning Mainland China, Indonesia, Malaysia, Mexico, Norway, the Middle East, Southeast Asia, Australia, North Africa, North Europe, the Caspian Sea, and Central Asia. In recent developments, COSL secured multiple long-term drilling rig service contracts in the Middle East valued at approximately US$1.9 billion with an international oil company, marking a significant expansion of its overseas presence and forming a new market pattern of comprehensive integration in the Gulf region. The company extended its services framework agreement with parent CNOOC for three additional years, reinforcing operational synergies amid market volatility. In Q3 2025, COSL reported a 46.1% year-over-year increase in net profit attributable to shareholders to RMB 1.25 billion, driven by higher rig occupancy rates, revenue growth in drilling and technology segments, increased vessel operating days in marine support, and overall operational efficiencies despite fluctuating oil prices. Additionally, in late 2025, COSL approved key governance changes at an extraordinary general meeting, including amendments to its Articles of Association and the cancellation of the Supervisory Committee to streamline operations and enhance efficiency. Executive transitions included the appointment of new leadership following resignations, supporting strategic focus on high-value exploration, production enhancement, and global growth.
China Oilfield Services Limited (CHOLF) Q1 2026 Earnings Call Transcript
China Oilfield Services Limited (CHOLF) Q4 2025 Earnings Call Transcript
China Oilfield Services Limited (CHOLF) Q3 2025 Earnings Call Transcript
China Oilfield Services: An Emerging Leader In The Global Offshore Oilfield Services