COSL - China Oilfield Services Headquarters & Office Locations

Verified data Oil and Gas Extraction and Refining 988 employees 4 locations worldwide

Headquarters: Yanjiao Economic Development Zone, Beijing, Beijing Shi N-4064, China

Data last updated · Sourced via GraphIQ

Headquarters
Beijing, Beijing Shi
China
Total locations
4
across 3+ countries
Employees
988
est. 2026

COSL - China Oilfield Services headquarters details

Street address
Yanjiao Economic Development Zone
City
Beijing
State / region
Beijing Shi
ZIP / postal code
N-4064
Country
China
Founded
1955

All COSL - China Oilfield Services office locations

4 total
CityState / regionCountryType
Beijing HQBeijing ShiChinaHeadquarters

Showing the headquarters of 4 recorded locations. See every location in GraphIQ →

About COSL - China Oilfield Services

COSL - China Oilfield Services is headquartered in Beijing, Beijing Shi, China. Founded in 1955, the company has 4 recorded locations across 3+ countries and employs approximately 988 people worldwide.

Where is COSL - China Oilfield Services's main office?

COSL - China Oilfield Services's main headquarters office is located at Yanjiao Economic Development Zone, Beijing, Beijing Shi N-4064, China. This is the company's primary corporate address.

COSL - China Oilfield Services regional offices

Beyond its headquarters in Beijing, COSL - China Oilfield Services has recorded locations in China, Mexico and Singapore.

What does COSL - China Oilfield Services do?

China Oilfield Services Limited (COSL) is an integrated oilfield service provider with over 50 years of experience in offshore oil and gas operations. COSL listed in both Shanghai and the HK Stock Exchange with its four major business segments of geophysical services, drilling services, well services and marine & transportation services covering all phases of exploration, development and production of oil and gas resources. COSL is the worlds fourth largest offshore drilling fleet and Asia's premier driller. Today, COSL operates over 40 drilling rigs including 32 are jack-up drilling rigs and 10 are semi-submersible drilling rigs, 2 accommodation rigs and 5 modular rigs. In addition, COSL also owns and operates the largest and most diverse shipping fleets in offshore China, including 69 working vessels and 3 oil tankers, 4 chemical carriers,7 seismic vessels, 7 surveying vessels. COSL represents one of the most technically complete package of integrated oilfield drilling and production services including a vast array of modern facilities and equipment for logging, drilling fluids, directional drilling, cementing and well work-over services, including FCT (Formation Characteristic Tool), FET(Formation Evaluation Tool), LWD (Logging-While-Drilling) and ERSC (ELIS Rotary Sidewall Coring Tool), etc. COSL provides customers with operation services for a single and integrated services throughout China and Southeast Asia, Australia, Middle East, America, North Africa, and North Europe. COSL maintains one of the highest safety records in the industry with strict adherence to the international QHSE standards and providing first-class services for customers. COSL endeavors to provide safe, efficient and valued services for domestic and international customers as we grow to become one of the world's top-notch oilfield service companies.

Frequently asked questions

Where is COSL - China Oilfield Services headquarters?

COSL - China Oilfield Services's headquarters is located at Yanjiao Economic Development Zone, Beijing, Beijing Shi N-4064, China.

How many offices does COSL - China Oilfield Services have?

GraphIQ records 4 locations for COSL - China Oilfield Services across 3+ countries, as of October 2026.

What is COSL - China Oilfield Services's corporate address?

The corporate headquarters address is Yanjiao Economic Development Zone, Beijing, Beijing Shi N-4064, China.

When was COSL - China Oilfield Services founded?

COSL - China Oilfield Services was founded in 1955 and employs approximately 988 people.

How many employees does COSL - China Oilfield Services have?

COSL - China Oilfield Services has approximately 988 employees (GraphIQ estimate, 2026).

Find more info on COSL - China Oilfield Services using GraphIQ

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