Last Updated on Monday, 22 September 2025, 15:28 by Denis Chabrol SPRING, Texas–(BUSINESS WIRE)– 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 ...