SPRING, Texas--(BUSINESS WIRE)--Sep 22, 2025-- ExxonMobil has made a final investment decision for the Hammerhead development offshore Guyana, after receiving the required regulatory approvals. Hammerhead, the seventh project on the Stabroek block, is anticipated to come online in 2029. The development will utilize a floating production storage and offloading (FPSO) vessel with a capacity to produce approximately 150,000 barrels of oil per day.