China Oilfield Services Management
Management criteria checks 1/4
We currently do not have sufficient information about the CEO.
Key information
Jianzhong Liu
Chief executive officer
n/a
Total compensation
| CEO salary percentage | n/a |
| CEO tenure | less than a year |
| CEO ownership | n/a |
| Management average tenure | 1.7yrs |
| Board average tenure | 3.9yrs |
Recent management updates
Recent updates
CEO
Jianzhong Liu (52 yo)
Mr. Jianzhong Liu is Chief Executive Officer of China Oilfield Services Limited from June 30, 2026. He is a senior engineer and serves as Party Secretary and the Chief Executive Officer of COSL. From 1997,...
Leadership Team
| Name | Position | Tenure | Compensation | Ownership |
|---|---|---|---|---|
| Executive Chairman | 5.8yrs | CN¥1.23m | no data | |
| President | 1.9yrs | CN¥1.16m | no data | |
| Chief Financial Officer | 2.1yrs | CN¥1.09m | no data | |
| VP, General Counsel & Chief Compliance Officer | 1.5yrs | CN¥1.14m | no data | |
| Executive Director | no data | no data | no data | |
| Deputy Party Secretary & Employee Representative Director | 1.6yrs | CN¥1.07m | no data | |
| VP, Secretary of the Board | 4.5yrs | CN¥1.10m | no data | |
| Vice President | 1.8yrs | CN¥1.04m | no data | |
| Chief Executive Officer | less than a year | no data | no data | |
| Head of Accounting | no data | no data | no data |
Experienced Management: CHOL.F's management team is not considered experienced ( 1.7 years average tenure), which suggests a new team.
Board Members
| Name | Position | Tenure | Compensation | Ownership |
|---|---|---|---|---|
| Executive Chairman | 5.8yrs | CN¥1.23m | no data | |
| Executive Director | 2.9yrs | no data | no data | |
| Deputy Party Secretary & Employee Representative Director | 1.6yrs | CN¥1.07m | no data | |
| Independent Non-Executive Director | 10.2yrs | CN¥400.00k | no data | |
| Independent Non-Executive Director | 5.1yrs | CN¥233.30k | no data | |
| Non-Executive Independent Director | 3.9yrs | CN¥400.00k | no data | |
| Independent Non-Executive Director | 5.1yrs | CN¥400.00k | no data | |
| Non-Executive Director | 2.9yrs | no data | no data | |
| Non-Executive Director | 2.9yrs | no data | no data |
Experienced Board: CHOL.F's board of directors are considered experienced (3.9 years average tenure).
Company Analysis and Financial Data Status
| Data | Last Updated (UTC time) |
|---|---|
| Company Analysis | 2026/07/04 22:08 |
| End of Day Share Price | 2026/06/17 00:00 |
| Earnings | 2026/03/31 |
| Annual Earnings | 2025/12/31 |
Data Sources
The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.
| Package | Data | Timeframe | Example US Source * |
|---|---|---|---|
| Company Financials | 10 years |
| |
| Analyst Consensus Estimates | +3 years |
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| Market Prices | 30 years |
| |
| Ownership | 10 years |
| |
| Management | 10 years |
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| Key Developments | 10 years |
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* Example for US securities, for non-US equivalent regulatory forms and sources are used.
Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.
Analysis Model and Snowflake
Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.
Learn about the world class team who designed and built the Simply Wall St analysis model.
Industry and Sector Metrics
Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.
Analyst Sources
China Oilfield Services Limited is covered by 43 analysts. 8 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.
| Analyst | Institution |
|---|---|
| Clement Chen | Barclays |
| NEIL BEVERIDGE | Bernstein |
| Yiming Wang | BofA Global Research |