CNOOC Limited Brings On-stream Weizhou 5-3 Oilfield Development Project

HONG KONG, June 9, 2025 /PRNewswire/ -- CNOOC Limited (the "Company", SEHK: 00883 (HKD Counter) and 80883 (RMB Counter), SSE: 600938) today announces that Weizhou 5-3 Oilfield Development Project has commenced production.

The project is located in the Beibu Gulf Basin of the South China Sea, with an average water depth of approximately 35 meters. The main production facility includes 1 self-installing wellhead platform, which leverages the adjacent existing facilities for development. 10 development wells are planned to be commissioned, including 7 production wells, 2 water injection wells and 1 gas injection well. The project is expected to achieve a plateau production of approximately 10,000 barrels of oil equivalent per day in 2026. The oil property is medium crude.

CNOOC Limited holds 51% interest in the project, and Smart Oil Investment Ltd. holds the remaining 49%.

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Notes to Editors:

More information about the Company is available at .

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This press release includes forward looking information, including statements regarding the likely future developments in the business of the Company and its subsidiaries, such as expected future events, business prospects or financial results. The words "expect", "anticipate", "continue", "estimate", "objective", "ongoing", "may", "will", "project", "should", "believe", "plans", "intends" and similar expressions are intended to identify such forward-looking statements. These statements are based on assumptions and analyses made by the Company as of this date in light of its experience and its perception of historical trends, current conditions and expected future developments, as well as other factors that the Company currently believes are appropriate under the circumstances. However, whether actual results and developments will meet the current expectations and predictions of the Company is uncertain. Actual results, performance and financial condition may differ materially from the Company's expectations, including but not limited to those associated with macro-political and economic factors, fluctuations in crude oil and natural gas prices, the highly competitive nature of the oil and natural gas industry, climate change and environmental policies, the Company's price forecast, mergers, acquisitions and divestments activities, HSSE and insurance policies and changes in anti-corruption, anti-fraud, anti-money laundering and corporate governance laws and regulations.

Consequently, all of the forward-looking statements made in this press release are qualified by these cautionary statements. The Company cannot assure that the results or developments anticipated will be realised or, even if substantially realised, that they will have the expected effect on the Company, its business or operations.

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For further enquiries, please contact:

Ms. Cui Liu
Media & Public Relations
CNOOC Limited
Tel: +86-10-8452-6641
Fax: +86-10-8452-1441
E-mail:

Mr. Cheng Yao
Ever Bloom (HK) Communications Consultants Group Limited
Tel：+852 5540 0725
Fax：+852 2111 1103
Email：