How many employees work at China Oilfield Services?
China Oilfield Services Ltd. has 4,366 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is -0.3%.
Data source: Revelio Labs Coverage: Global workforce Latest update: December 2025
About China Oilfield Services
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.
As of December 2025
China Oilfield Services
workforce metrics
Headcount
4.4k
Avg. Salary
$32.6k
Tenure
5.2yr
Growth Rate
-0.3%
Hiring Rate
Attrition Rate
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Employee Headcount
Interactive chart of China Oilfield Services annual worldwide employee count from 2023 to 2025.
- China Oilfield Services total number of employees in 2025 was 4,369, a 0.3% decline from 2024.
- China Oilfield Services total number of employees in 2024 was 4,383, a 1.2% increase from 2023.
- China Oilfield Services total number of employees in 2023 was 4,331, a 5.8% increase from 2022.
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Employee Geographic Breakdown
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Active Job Postings
Interactive chart of China Oilfield Services annual active job postings from 2023 to 2025.
- China Oilfield Services active job postings in 2025 was 3, a 0% no change from 2024.
- China Oilfield Services active job postings in 2024 was 3, a 80.0% decline from 2023.
- China Oilfield Services active job postings in 2023 was 7, a 111.1% increase from 2022.
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Employee Sentiment
Sentiment Topics
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