ExxonMobil Plans Further $12.5 Billion Investment in Guyana’s Longtail Project
ExxonMobil plans a $12.5 billion investment in Guyana's Longtail project, with government approval for development. The project, expected online by 2030, will produce 1.2 billion cubic feet of gas daily and 250,000 barrels of condensate. ExxonMobil holds a 45% stake in the Stabroek Block.
How this was made

The 30-second read
Why it matters
The announcement expands ExxonMobil's gas portfolio, diversifying revenue beyond oil and supporting its long‑term growth narrative.
Market read
A major capex announcement for a leading U.S. energy company, likely to influence stock sentiment and sector dynamics.
What to watch
Execution risk and potential regulatory or geopolitical challenges in Guyana could delay or reduce project value.
Background
ExxonMobil holds a 45% stake in the Stabroek Block; Hess and CNOOC are partners. The Longtail project targets 1.2 bcf/d of gas and 250 k bbl/d of condensate.
Ticker impact
ExxonMobil announced a new $12.5 billion investment in the Longtail gas‑and‑condensate project in Guyana, its first non‑associated gas development.
potential upside as investors price in expanded gas output and future cash flow
Large, newly disclosed capital allocation to a high‑margin gas asset typically lifts sentiment; the project will start production in 2030, offering a growth narrative.
Market effects
Strengthens the oil & gas sector's outlook on gas supply and may boost peers with similar gas projects.
Highlights Guyana's growing role as a gas exporter, potentially attracting investment to the region.
Adds to global gas supply expectations, modestly influencing commodity markets.
Counterpoint
The $12.5 bn spend could strain cash flow and increase debt, weighing on near‑term earnings.
Key entities
- companyExxonMobil
U.S. integrated oil and gas major announcing the investment.
- governmentGuyana Government
Approved the development plan and issued the production license.


