Identity graph
China Oilfield Services headquarters, locations and relationships
- Legal name
- China Oilfield Services Limited
- Industry
- Oil And Gas Drilling
- Founded
- 2001
- Ticker
- HKEX: 2883
- Phone
- +86 10 8452 2046
- Website
- cosl.com.cn
China Oilfield Services office locations
| City | State / region | Country | Type |
|---|---|---|---|
| Beijing | Beijing | China | Headquarters |
| Calgary | Alberta | Canada | Office |
| Beiyuan | Beijing | China | Office |
| Langfang | Hebei | China | Office |
| Sanhe | Hebei | China | Office |
| Victoria | Central and Western | Hong Kong | Office |
- Parent company
- China Oilfield Services is part of CNOOC.
- Competitors
- China Oilfield Services competes with 1 organizations in the GraphIQ.ai identity graph.
Verified from public filings, company websites and news · Methodology
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The entity and its relationships through the REST API and MCP server.
Developers
About China Oilfield Services
China Oilfield Services (HKEX: 2883) is headquartered in Beijing, Beijing, China. Founded in 2001, the company has 9 recorded locations across 4+ countries and employs approximately 15,533 people worldwide.
Where is China Oilfield Services's main office?
China Oilfield Services's main headquarters office is located at P.O. BOX 232, Beijing, Beijing 101149, China. This is the company's primary corporate address.
China Oilfield Services regional offices
Beyond its headquarters in Beijing, China Oilfield Services has recorded locations in China, Canada, Hong Kong and Philippines.
China Oilfield Services contact information
The main switchboard for China Oilfield Services headquarters can be reached at +86 10 8452 2046. Official website: cosl.com.cn.
What does China Oilfield Services do?
China Oilfield Services Limited provides oilfield services. The Company provides geophysical prospecting, drilling, oilfield technology development, and other services. China Oilfield Services also operates transportation businesses.
One entity, every stage
Put China Oilfield Services to work across your revenue bowtie
- Target Define the market Build the account list from companies shaped like your best customers, China Oilfield Services included. Fingerprint search
- Cover Plan territories China Oilfield Services's 9 locations roll up to one account, so it lands in one territory, once. Territory planning
- Engage Act on timing Leadership changes, funding and M&A arrive linked to the account, not a loose headline. Signal monitoring
- Convert Close on a resolved record Inbound and closed-won attach to one CRM record, with no duplicates to merge. CRM enrichment
- Retain Ground every answer Customer teams and AI agents answer from the same entity, with a source and a date. AI agent data layer
- Expand Find the next buyer inside Follow subsidiaries and divisions to the next team that can buy. Account expansion
About the source
What is GraphIQ.ai?
A B2B identity graph. It resolves each organization into one verified entity and maps its parent and subsidiaries, employees, competitors and news signals. Revenue teams use it in the product; AI agents query it through the REST API and MCP server.
POST/api/v2/organizations/search
China Oilfield Services: frequently asked questions
Where is China Oilfield Services headquarters?
P.O. BOX 232, Beijing, Beijing 101149, China.
What is China Oilfield Services's phone number?
+86 10 8452 2046 (headquarters).
When was China Oilfield Services founded?
2001.
How many employees does China Oilfield Services have?
About 15,533, as of October 2026 (GraphIQ.ai estimate).
How many offices does China Oilfield Services have?
9 locations across 4+ countries, including Calgary, Beiyuan, Langfang, Sanhe.
Is China Oilfield Services a public company?
Yes. China Oilfield Services trades on HKEX under the ticker 2883.
Questions about GraphIQ.ai
Is GraphIQ.ai a list of companies like a spreadsheet?
No. Each organization resolves to one verified entity linked to its parent, subsidiaries, people and signals, so China Oilfield Services here is the same China Oilfield Services in your CRM, territory plan and agent answers.
Where does this China Oilfield Services data come from?
Public filings, company websites and news, resolved to one entity and continuously updated.