China Oilfield Services Limited

  • Ship Owners
  • Ship Managers

China Oilfield Services Limited (COSL) is a prominent integrated oilfield service provider that operates primarily in offshore regions. The company, which is a subsidiary of the China National Offshore Oil Corporation (CNOOC), offers a wide array of services that cater to the exploration, development, and production phases of oil and gas fields. These services include but are not limited to:

  1. Geophysical Services: COSL conducts seismic surveys and data interpretation to help identify hydrocarbon deposits beneath the Earth's surface.

  2. Drilling Services: The company operates a fleet of drilling rigs, both offshore and onshore, facilitating exploratory and production drilling activities.

  3. Well Services: These include well logging, cementing, and stimulation operations essential for preparing and maintaining oil and gas wells.

  4. Marine Support and Transportation: COSL offers a range of marine services, including the transportation of personnel, equipment, and materials, as well as anchor handling and towing services for drilling rigs.

  5. Technical Services and R&D: The company also engages in research and development to innovate and improve its service offerings, leveraging technology to enhance efficiency and reduce operational risks.

COSL's footprint extends beyond China, with operations in multiple regions worldwide, reflecting its ambition to be a global player in the oilfield services sector. The company is listed on the Hong Kong Stock Exchange and has garnered a reputation for reliability and excellence within the industry.

In recent years, COSL has also shown a commitment to sustainability and environmental responsibility, aligning itself with global trends and regulatory requirements aimed at reducing the environmental impact of oil and gas exploration and production.

Ships

HAI YANG SHI YOU 708

Research Ship | Flag: China | Port: TIAN JIN

NAN HAI 6

Column-stabilised Unit | Flag: China | Port: ZHANJIANG

NAN HAI JIU HAO

Column-stabilised Unit | Flag: China | Port: ZHANJIANG

Maritime News

Maersk, Hapag-Lloyd: No immediate return to Red Sea

Maersk, Hapag-Lloyd: No immediate return to Red Sea

2 days ago
Two of the world's top shipping companies, Maersk and Hapag-Lloyd, said on Thursday they did not see an immediate return to Red Sea after the ceasefire between Hamas and Israel was announced.Both companies said they would be closely monitoring the situation in the Middle East and would return to the Red Sea once it was safe to do so."The agreement has only just been reached. We will closely analyze the latest developments and their impact on the security situation in the Red Sea," a Hapag-Lloyd spokesperson told Reuters."It is still too early to speculate about timing," a Maersk spokesperson said.
What Keeps Business Leaders Awake at Night?

What Keeps Business Leaders Awake at Night?

2 days ago
Cyber, business interruption and natural catastrophes are the risks of most concern for businesses globally according to the Allianz Risk Barometer 2025 - as voted for by a record 3,778 risk management experts from 106 countries and territories.Cyber incidents (38% of responses, a record 7% points ahead) consolidates its position as the most important risk.The risk impact of new technologies and developments in artificial intelligence (AI) is a new entrant in the top 10 global risks at #10.Closely interlinked to cyber, business interruption is ranked #2 (31%), just ahead of another related risk, natural catastrophes at #3 (29%).Climate change is another standout result in 2025.
MOL and JERA Ink Charter for LNG Carrier Newbuild

MOL and JERA Ink Charter for LNG Carrier Newbuild

3 days ago
Mitsui O.S.K. Lines (MOL) has signed a long-term charter contract for a newbuilding LNG carrier with a vessel operation management company funded by JERA.This is the eighth contract for LNG carrier signed with JERA. The vessel will be built at the Geoje Shipyard of Samsung Heavy Industries, and is scheduled for delivery in 2026.It will be 290 meters long, with a breadth of 45.8 meters. It will feature a membrane tank of 174,000 m3.The vessel will be managed by MOL and will transport LNG for JERA.
Pirates: More Guns, More Hostages

Pirates: More Guns, More Hostages

3 days ago
The ICC International Maritime Bureau (IMB) has reported an increase in the number of crew taken hostage or kidnapped in 2024.The IMB annual Piracy and Armed Robbery Report recorded 116 incidents against ships in 2024 compared to 120 in 2023 and 115 in 2022. It reveals that 94 vessels were boarded, 13 attempted attacks, six vessels hijacked and three fired upon.While the number of reported incidents in 2024 remains similar to those reported in 2023 and 2022, the number of crew taken hostage or kidnapped increased to 126 taken hostage in 2024 compared to 73 in 2023 and 41 in 2022. Twelve crew were reported kidnapped, compared to 14 in 2023 and two in 2022.
James Fishers Orders Four LNG Dual-Fuel Tankers

James Fishers Orders Four LNG Dual-Fuel Tankers

4 days ago
James Fisher and Sons has ordered four new LNG dual-fuel tankers from China Merchants Jinling Shipyard (Yangzhou) Dingheng as part of its ‘fleet of the future’ business strategy.The new tankers, which will carry oil products and IMO Class II chemicals, will have LNG dual-fuel propulsion capability, expected to help to reduce operational CO2 emissions and associated environmental impact over the long-term.A number of features that will add to the overall sustainability of the new builds have been carried over from recent additions to the company’s fleet, vessels Sir John Fisher and Lady Maria Fisher.