ExxonMobil takes FID for Longtail development offshore Guyana
ExxonMobil Corp. has taken final investment decision (FID) on the Longtail development offshore Guyana, the company's eighth approved project on the Stabroek block. ExxonMobil said it plans an additional $12.5 billion investment in the development, which is expected to come online in 2030.
The decision follows government and regulatory approvals for the operator's eighth development in the Stabroek block.
Longtail, in the southeastern portion of the block, will target non-associated gas and condensate-rich reservoirs. Subject to future investment decisions, market demand, and development of supporting infrastructure, gas from the project could be transported to shore by pipeline.
The development will use a floating production, storage, and offloading (FPSO) vessel designed to process 1.2 bcfd of gas and produce as much as 250,000 b/d of condensate. The project is expected to include about 45 subsea production and injection wells.
"By developing these gas and condensate resources, we're unlocking new value for Guyana while delivering advantaged energy to meet growing global demand," said Dan Ammann, president, ExxonMobil Upstream Company.
ExxonMobil currently produces about 900,000 b/d of oil from four developments in the Stabroek block. Its fifth project, Uaru, is expected to start up in fourth-quarter 2026, increasing total block production capacity to more than 1 million b/d.
Earlier this year, the operator and co-venturers produced the 1 billionth bbl of oil from Guyana’s Stabroek block, less than 7 years after first production began in December 2019 with Liza field.
Construction also continues on the Whiptail and Hammerhead developments, the sixth and seventh approved projects on the block. Whiptail is slated to start production in 2027, followed by Hammerhead in 2029.
ExxonMobil Guyana Ltd. operates the Stabroek block with a 45% interest. Hess Guyana Exploration Ltd. holds 30%, and CNOOC Petroleum Guyana Ltd. holds 25%.
