ExxonMobil Advances Next Phase of Guyana Development with Longtail

What happened

ExxonMobil made a final investment decision for Longtail, its eighth development in Guyana’s Stabroek Block, and plans to invest an additional $12.50 billion. The project is expected to include about 45 subsea wells and begin production in 2030, with output capacity of up to 250,000 barrels of condensate per day.

Confirmed

Global impact / market context

The planned spending commits substantial capital to a project expected to add production in 2030. If delivered as described, Longtail could increase ExxonMobil’s future output and revenue, while the large upfront investment means costs precede production. The decision also supports continued development activity in Guyana.

Analyst inference

Longtail is one part of a wider Guyana schedule: Whiptail is anticipated to begin production in 2027, and Hammerhead is expected in 2029. That sequence could spread project activity and future production across several years, but the article gives no output figures for those developments.

Analyst inference

What to watch

1. Track progress toward Longtail’s expected 2030 start and delivery of its planned wells; delays could push back production and postpone the revenue expected from the investment. Analyst inference
2. Watch whether ExxonMobil’s planned additional $12.50 billion investment is followed by further project details, including timing, spending progress, and confirmation of the expected capacity. Analyst inference
3. Follow the stated milestones for Whiptail in 2027 and Hammerhead in 2029, since changes to their schedules would alter the expected sequence of Guyana development. Analyst inference

Evidence

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