China National Offshore Oil Corporation Announces Early Commencement of Production at the Yellowtail Project in Guyana.
The Yellowtail project is located in the Stabroek Block offshore Guyana, with water depths ranging from 1,600 to 2,100 meters. The main production facilities include one Floating Production, Storage, and Offloading (FPSO) vessel and one subsea production system. The project plans to bring 26 production wells and 25 water injection wells online.
The FPSO for this project is currently the largest in Guyana’s Stabroek Block, with a designed oil storage capacity of approximately 2 million barrels.
CNOOC Petroleum Guyana Limited, a wholly-owned subsidiary of CNOOC Limited, holds a 25% interest in the Stabroek Block. The operator ExxonMobil Guyana Limited owns a 45% stake, while Hess Guyana Exploration Ltd. holds the remaining 30% interest.
The Stabroek Block, located in ultra-deep waters (1,600-2,000 meters) off northeastern Guyana, boasts an extraordinary exploration success rate with nearly 40 discoveries to date, holding total recoverable resources exceeding 11 billion barrels of oil equivalent.
Within the block, the Liza Phase 1, Liza Phase 2, and Payara projects have already commenced production. Notably, the Payara project achieved peak production within just three months after its startup in November 2023, setting a new record for ultra-deepwater field development.
The 2024 discovery of the billion-ton Bluefin field has further expanded the southeastern portion’s reserve base. A “second growth curve” is unlocked concurrently by a natural gas development strategy – the Guyanese government plans to transport associated gas via subsea pipelines to shore for power generation and petrochemical projects, creating synergies with CNOOC’s FLNG (Floating LNG) technological expertise.
This dual-track approach of “oil for production scale and gas for value enhancement” has established the Guyana partnership as a strategic buffer for CNOOC against energy transition risks.
South America has now emerged as a pivotal region for CNOOC’s overseas reserves and production. This growth epitomizes technological prowess and operational excellence:
Facing ultra-deepwater conditions exceeding 1,600 meters, CNOOC’s team spearheaded optimized drilling solutions, reducing the costs to 20% of single well whick is below industry averages. The innovative dual-fuel system incorporated into the FPSO designs has reduced the carbon dioxides emission intensity by 35%.
More significantly, the Guyana project has become an incubator for CNOOC’s global operations, establishing a replicable, scalable model for efficient development and operation in complex deepwater blocks. This breakthrough creates an operational paradigm transferable to future projects worldwide.
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Post time: Aug-26-2025