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:

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

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

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

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.

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

Israel Attacks Three Yemen Ports

3 hours ago

Israel has attacked Houthi targets in three Yemeni ports and a power plant, the Israeli military said early on Monday, marking the first Israeli attack on Yemen in almost a month.The strikes on Hodeidah, Ras Isa and Salif ports, and Ras Qantib power plant were due to repeated Houthi attacks on Israel, the military added.Hours after the strikes, the Israeli military said two missiles were launched from Yemen and attempts were made to intercept them, but the results of interception were still under review.The Israeli ambulance service said it had not received any calls regarding missile impacts or casualties following the launches from Yemen.

U.S. Coast Guard Receives Historic Investment

9 hours ago

The U.S. Coast Guard welcomed the nearly $25 billion investment included in the One Big Beautiful Bill Act Friday — marking the largest single commitment of funding in service history. The investment strengthens every facet of Coast Guard operations and supports the Service's role as the Nation’s leading drug interdiction and maritime border security force. It will allow the Coast Guard to procure an estimated 17 new icebreakers, 21 new cutters, over 40 helicopters and six C-130J aircraft while modernizing shore infrastructure and maritime surveillance systems.

Crew Rescued After Attack Near Yemen

11 hours ago

The crew of a ship set on fire in an attack in the Red Sea on Sunday abandoned the vessel and were rescued as it took on water, a British maritime agency said, in an assault that private security firm Ambrey said resembles that of the Houthi militant group.The attack, off the southwest coast of Yemen, was the first such incident reported in the vital shipping corridor since mid-April.Maritime security sources said the vessel, which they identified as the Liberian-flagged, Greek-owned bulk carrier Magic Seas, had taken on water after being hit by sea drones. All crew were safe after being rescued by a passing merchant vessel, the United Kingdom Maritime Trade Operations (UKMTO) said.

Ferry Sinks off Bali, Killing Four as 30 Go Missing

3 days ago

Four people died, 30 were missing and 31 survived after a ferry carrying 65 people sank near the Indonesian island of Bali, the country's Search and Rescue agency said on Thursday, as rescuers raced to find victims in the rough sea.The KMP Tunu Pratama Jaya sank almost half an hour after leaving East Java province's Banyuwangi port on its way to Bali late on Wednesday, the agency said on Thursday.The boat was carrying 53 passengers and 12 crew members, as well as 22 vehicles, the agency said.A search for the missing is underway although it is being hampered by strong currents and winds, the agency said, adding it had deployed a helicopter to the location and 13 underwater rescuers.

KIMM Cracks the Code for Underwater Radiated Noise Prediction

4 days ago

Researchers in South Korea at the Korea Institute of Machinery and Materials (KIMM) have reportedly developed a hull-attached sensor-based system for predicting underwater radiated noise (URN), a key factor in naval stealth operations.KIMM Develops First Hull-Attached Sensor System for Predicting Underwater Radiated NoiseNew algorithm predicts underwater noise in real timeBoosts naval stealth and operational efficiencyThe new technology allows real-time monitoring of underwater noise levels generated by naval vessels, enabling early detection of abnormal vibrations and improving operational efficiency while reducing maintenance costs.