ExxonMobil has taken a final investment decision (FID) to proceed with the development of the Longtail field, located offshore Guyana (ExxonMobil press release, 12/11/2026). Located in the south-eastern section of the Stabroek block, the Longtail project is designed to develop non-associated gas and condensate-rich resources. The development will feature a floating production, storage and offloading (FPSO) vessel with a processing capacity of 1.2 bcf/d (12.4 bcm/year) and the ability to produce up to 250,000 bbl/d of condensate.
“Subject to future investment decisions, market demand and the development of necessary infrastructure, gas from Longtail could be transported to shore by pipeline”, the company stated. The company intends to allocate USD12.5bn to the project, which represents the eighth development in the Stabroek block. Production is scheduled to begin in 2030.
- ExxonMobil is currently producing around 900 kb/d from its four operational projects in the Stabroek block. Following the anticipated launch of the fifth project, Uaru, in the fourth quarter of 2026, output is expected to surpass 1 mb/d, according to the company’s press release.
- Meanwhile, construction work is ongoing at Whiptail and Hammerhead, the sixth and seventh projects to have received approval. Whiptail is expected to come online in 2027, followed by Hammerhead in 2029, the company added.
ExxonMobil Guyana Limited, an affiliate of ExxonMobil, will serve as the operator of the Longtail project and owns a 45% stake in the Stabroek block. Hess Guyana Exploration holds a 30% stake, while CNOOC Petroleum Guyana owns the remaining 25%.