ExxonMobil says the proposed production increase at the Yellowtail development offshore Guyana has the potential to maximize revenue for both the Guyana government and the Stabroek Block co-venturers.
“As you’re aware, ExxonMobil Guyana Limited, as the operator, is always looking to optimize our production really for the benefit of all parties. And in some instances, that involves producing above the original nameplate capacity, and that’s where [Yellowtail] we seek to do it,” John Colling, ExxonMobil Guyana Vice President and Business Services Manager said during a June 9 meeting with reporters.
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Colling said the company is evaluating opportunities to safely increase output beyond current levels, stating that “we will not increase production unless we are fully satisfied that all safety requirements are being met, including safety for the environment and safety for our people. Assuming that we can do that, we will look to increase production.”
Yellowtail, which began producing oil in August 2025 through the ONE GUYANA floating production, storage and offloading (FPSO) vessel, reached its initial target of 250,000 barrels per day (b/d) by November. Production has since increased to about 263,000 b/d.
ExxonMobil now believes output could be raised to around 290,000 b/d, subject to government approval and technical assessments. The company has submitted a proposal to the Guyana government seeking permission to evaluate the potential for increased production.
If approved, the proposed increase would make Yellowtail the highest-producing offshore development in Guyana to date.
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Exxon operates the Stabroek Block with a 45% interest, while Hess (owned by Chevron) holds a 30% interest and CNOOC holds 25%.
