‘Exciting times in Guyana for ExxonMobil’ – Vice President

Oct 09, 2025 News

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…as company streamlines 8th project

(Kaieteur News) – ‘Exciting times’ are unfolding in Guyana for oil giant, ExxonMobil as the company is progressing with the regulatory review of an eight development, mere weeks after obtaining a permit for its seventh project, Hammerhead.

Government gave Exxon the nod of approval for the seventh project on September 22, this year.

Be that as it may, vice president and production manager of ExxonMobil Guyana Limited (EMGL), Huzefa Ali recently revealed that the company’s eight proposed development in the Stabroek Block is also “well progressed”.

During an energy breakfast hosted by the Georgetown Chamber of Commerce and Industry (GCCI) last week, Ali shared an update on the activities in the Stabroek block as well as those under consideration, which he described as exciting.

With seven projects already in hand, he said, “I will highlight project number eight, which we expect to be Longtail, is also well progressed in terms of regulatory reviews and discussions for further discussion.”

Meanwhile, with regard to the Yellowtail project, Exxon’s fourth offshore development, Ali said nameplate capacity on the ‘One Guyana’ Floating Production Storage and Offloading vessel (FPSO) is likely to be achieved in November.

The company commenced production on August 8. Once Exxon hits nameplate capacity on the vessel, Guyana’s daily rate of production will be pushed to 900,000 barrels with support from the other three FPSOs – Destiny, Unity and Prosperity. One Guyana was designed to produce 250,000 barrels per day (bpd).

The production manager detailed, “The other three FPSOs that we have online, which is, as you’re all aware, Liza, Destiny, Liza Unity, and the Payara Prosperity assets today continue to produce in the order of 650,000 barrels a day…you’ll recall the Destiny asset starting up in 2019, that was the first oil (platform) here in Guyana, through to Unity in 2022 (and) Payara starting up late in 23. And then, as I mentioned, the Yellowtail, One Guyana asset, starting recently in August of this year.”

Ali told the local business executives that ExxonMobil was nowhere close to the finish line with a string of other developments still on the company’s horizon.

“Four projects online, three being progressed, and one further, at least under discussion, exciting times here in Guyana. Proud to say that the projects that we have delivered continue to be delivered on schedule and under budget and something that we’re very proud of,” he added.

Exxon’s eight project seeks to develop the Longtail, Tripletail, and Turbot non-associated gas fields, and potentially additional resources, if determined to be feasible and economically viable.

In February this year, President of EMGL, Alistair Routledge told reporters that the eight development seeks to develop the gas resources at the Longtail site.

“We have just submitted the environmental authorisation application for an eight project, the Longtail project which will start us into developing what are known as the non-associated gas resources,” he said.

The Field Development Plan (FDP) for the project is likely for completion by next year.

According to a Public Notice, the Environmental Protection Agency (EPA) had ordered an Environmental Impact Assessment (EIA) to identify potential impacts associated with the project.

Longtail

The proposed development is located in the southeastern portion of the Stabroek Block, approximately 200 km from Georgetown and adjacent to previous Stabroek Projects. Exxon has indicated plans to use drill ships to produce the non-associated gas and condensate from approximately 24 – 60 production and injection wells. The subsea equipment will be installed at a depth of approximately 1,600 – 2,000 metres.

As a non-associated gas development, the primary produced fluid is non-associated gas, from which condensate will be separated on the FPSO, prior to the remaining gas stream being reinjected into the reservoir for pressure maintenance and increased recovery of condensate.

According to the project summary, gas may be exported from the Longtail project as demand materialises. Current plans include non-associated gas production of between 1,000 to 1,500 million standard cubic feet (MMscfd) per day of non-associated gas and 200 to 290 thousand barrels of condensate per day. The FPSO will be able to store approximately two million barrels of condensate.

BlackRock Midstream describes condensate as extremely light oil. The Longtail project would be the largest offshore development pursued by the company in Guyana to date. Other oil projects were designed to produce up to 250,000 barrels of oil per day.

Like its other projects, Longtail will involve drilling of production and injection wells, installation, commissioning, and operations of Subsea Umbilicals, Risers, and Flowlines (SURF), and a FPSO for handling and offloading of produced hydrocarbons.

The proposed FPSO will be a newly built floating facility with double side and single bottom protection, with approximate dimensions of 334m long by 60 m wide by 32.8 m deep, and will be moored on location, approximately 200 km offshore, some 39 km southeast of the Liza Unity FPSO.

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• ExxonMobil, Guyana, Huzefa Ali, Longtail, Stabroek Block

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