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ExxonMobil’s Guyana Offshore Discovery Count Rises to 13

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ExxonMobil’s Yellowtail-1 well on the Stabroek Block offshore Guyana encountered 89 m of "high-quality, oil-bearing sandstone," the major said, bringing its discovery count in Latin America’s emerging oil powerhouse to 13. 

Located 10 km northwest of the Tilapia discovery, the Yellowtail-1 was drilled by the Noble Tom Madden drillship to 5,622 m in 1,843 m of water. Yellowtail-1 is the fifth discovery in the Turbot area—which includes the Tilapia, Turbot, Longtail, and Pluma discoveries—where ExxonMobil plans another Stabroek Block development hub. Yellowtail-1 adds to the 5.5 billion BOE in estimated recoverable resources on the block.

“Similar to the Liza area, successive discoveries in the Turbot area have continuously grown its shared value,” said Mike Cousins, senior vice president of ExxonMobil Exploration and New Ventures.

The Noble Tom Madden will next drill the Hammerhead-2 well. Elsewhere on the block, the Stena Carron drillship is completing a well test at the Longtail-1 discovery and, upon completion, will drill the Hammerhead-3 well.

Later this year, the Stena Carron will drill a second well at the Ranger discovery. The Noble Bob Douglas drillship is currently completing development drilling operations for the Liza Phase 1 development. ExxonMobil is also evaluating plans to add another exploration drillship, bringing the number of drillships offshore Guyana to four.

ExxonMobil has previously said there is potential for at least five floating production, storage, and offloading (FPSO) vessels on Stabroek, which altogether would produce more than 750,000 BOE/D by 2025. Startup of the Liza Phase 1 development is on track to begin by the first quarter of 2020 with the 120,000-BOE/D Liza Destiny FPSO, which is expected to arrive in the country in the third quarter.

Liza Phase 2 and its 220,000-B/D Liza Unity FPSO are expected to start up by mid-2022, with a final investment decision expected soon, the company said. Sanctioning of a third development, Payara, is also expected in 2019, with startup projected for 2023.

ExxonMobil affiliate Esso Exploration and Production Guyana is operator of the 26,800-sq-km Stabroek Block with a 45% interest. Hess Guyana Exploration and CNOOC Petroleum Guyana have 30% and 25%, respectively.

The major's discovery hot streak in 2019 thus far includes three off Guyana and the massive Glaucus-1 gas find off Cyprus. It also has added exploration acreage off Colombia and Argentina in a South America exploration push.

ExxonMobil’s Guyana Offshore Discovery Count Rises to 13

18 April 2019

Volume: 71 | Issue: 6

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