ExxonMobil Evaluates Ultra-Deepwater Discovery in Guyana and Explores Tieback Development for Small Reservoirs
2026-05-14 15:01
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en.Wedoany.com Reported - U.S. oil company ExxonMobil is evaluating an ultra-deepwater discovery in waters nearly 3,000 meters deep offshore Guyana, having shifted to deeper areas following the first phase of large-scale oil development in the Stabroek Block. At the recent Offshore Technology Conference in Houston, Texas, Kyle Countryman, ExxonMobil's Guyana Development Manager, stated that as the evaluation of deeper reservoirs and smaller accumulations advances, the technical difficulty of the next round of development is increasing. Some discoveries may need to be connected to existing infrastructure via tiebacks.

"This is an ultra-deepwater discovery, close to 3,000 meters," Countryman said at the conference. He noted that ExxonMobil initially focused on large black oil discoveries capable of supporting standalone production projects. "We always do the easy things first, but I'm not saying any deepwater development is easy."

Regarding the technical pathway for deepwater exploration, Countryman added: "These are smaller tieback opportunities, not standalone development opportunities." The tieback development approach allows small discoveries to connect to existing production facilities without requiring a dedicated floating production, storage and offloading vessel. ExxonMobil and its joint venture partners, U.S.-based Hess Corporation and China's CNOOC, are studying various resource development options.

"We have many discovered but undeveloped resources and are looking for ways to unlock them," Countryman said. The partners are in ongoing consultations with the Guyanese government on future development plans. Currently, four floating production, storage and offloading vessels are in production in the Stabroek Block, with several other development projects having received approval from the Guyanese government. The partners are evaluating these tieback development opportunities.

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