Sinopec Oilfield Service Corporation

OTCPK:YZCF.F Stock Report

Market Cap: US$5.2b

Sinopec Oilfield Service Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

OTCPK:YZCF.F Recent Insider Transactions by Companies or Individuals
DateValueNameEntityRoleSharesMax Price
05 Mar 26SellUS$30,286,009Barclays Bank PlcCompany158,422,000US$0.19
03 Mar 26BuyUS$30,728,596Barclays Bank PlcCompany173,552,000US$0.18
03 Mar 26SellUS$31,061,646E Fund Management Co., Ltd.Company154,000,000US$0.20

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of YZCF.F?
Owner TypeNumber of SharesOwnership Percentage
Individual Insiders62,018,7000.327%
Institutions1,108,725,1835.85%
General Public4,235,818,59922.3%
Private Companies13,550,483,35171.5%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 77.41% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
66.3%
China Petrochemical Corporation
12,564,513,351US$3.5b0%no data
4%
China National Petroleum Corporation
759,170,000US$209.0m0%no data
1.4%
China Asset Management Co. Ltd.
264,690,563US$72.9m0%0.02%
0.86%
E Fund Management Co., Ltd.
162,441,732US$44.7m0%0.01%
0.84%
Barclays Bank Plc
160,085,656US$44.1m0%0.01%
0.73%
Vanguard Capital Management, LLC
138,416,626US$38.1m1.47%no data
0.68%
CITIC Group Corporation
128,800,000US$35.5m0%0.04%
0.5%
Hong Kong Exchanges and Clearing Limited
95,691,965US$26.3m0%0.01%
0.32%
China Southern Asset Management Co., Ltd.
59,975,569US$16.5m0%0.03%
0.23%
Shanghai Tongneng Investment Holding Co., Ltd.
43,000,000US$11.8m0%no data
0.22%
Beijing Tongneng Sunshine Technology Development Co., Ltd.
42,000,000US$11.6m0%no data
0.2%
Barclays PLC
37,649,000US$10.4m0%no data
0.2%
Dimensional Fund Advisors LP
37,200,098US$10.2m7.1%no data
0.17%
Feng Li
31,300,000US$8.6m0%no data
0.16%
Long He
30,668,400US$8.4m0%no data
0.15%
Fidelity International Ltd
29,244,000US$8.1m0%no data
0.13%
Norges Bank Investment Management
24,096,986US$6.6m-42.2%no data
0.073%
First Trust Advisors LP
13,852,776US$3.8m4.19%no data
0.069%
Anhui Zhongyi Zhengyuan Electronic Technology Co., Ltd.
13,000,000US$3.6m0%no data
0.055%
Strategic Advisers LLC
10,466,000US$2.9m65%no data
0.048%
Harvest Fund Management Co. Ltd.
9,190,200US$2.5m0%no data
0.028%
Bosera Asset Management Co., Ltd.
5,264,500US$1.4m0%0.01%
0.024%
Fullgoal Fund Management Co. Ltd.
4,477,500US$1.2m0%no data
0.023%
Huatai-PineBridge Fund Management Co., Ltd.
4,336,300US$1.2m0%no data
0.022%
China Merchants Fund Management Company Ltd.
4,258,100US$1.2m0%no data

Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2026/09/09 08:24
End of Day Share Price 2026/07/29 00:00
Earnings2026/06/30
Annual Earnings2025/12/31

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.

PackageDataTimeframeExample US Source *
Company Financials10 years
  • Income statement
  • Cash flow statement
  • Balance sheet
Analyst Consensus Estimates+3 years
  • Forecast financials
  • Analyst price targets
Market Prices30 years
  • Stock prices
  • Dividends, Splits and Actions
Ownership10 years
  • Top shareholders
  • Insider trading
Management10 years
  • Leadership team
  • Board of directors
Key Developments10 years
  • Company announcements

* 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 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

Sinopec Oilfield Service Corporation is covered by 16 analysts. 1 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

AnalystInstitution
Clement ChenBarclays
Yuhao HuChina International Capital Corporation Limited
Xiaoyu YuChina Merchants Securities (HK) Co., Ltd