Mako-1 encountered approximately 164 feet (50 meters) of a high-quality oil bearing sandstone reservoir. Mako-1, drilled in 5,315 feet (1,620 meters) of water, is located approximately six miles (10 kilometers) southeast of the Liza field, which began producing oil in December 2019.
“New discoveries in this world-class basin have the potential to support additional developments,” said Mike Cousins, senior vice president of exploration and new ventures at ExxonMobil. “Our proprietary full-wave seismic inversion technology continues to help us better define our discovered resource and move rapidly to the development phase.”
The Liza Phase 1 development achieved first oil on Dec. 20, 2019 and will produce up to 120,000 barrels of oil per day utilizing the Liza Destiny floating production storage and offloading vessel (FPSO).
The Liza Unity FPSO, which will be employed for the second phase of Liza development and will have a production capacity of 220,000 barrels of oil per day, is under construction and expected to start production by mid-2022.
Pending government approvals and project sanctioning of a third development, production from the Payara field north of the Liza discoveries could start as early as 2023, reaching an estimated 220,000 barrels of oil per day.
Drilling activities in Guyana continue with four drillships to further explore and appraise new resources as well as develop the resources within approved projects.
The Stabroek Block is 6.6 million acres (26,800 square kilometers). ExxonMobil affiliate Esso Exploration and Production Guyana Limited is operator and holds 45 percent interest in the Stabroek Block.
Hess Guyana Exploration Ltd. holds 30 percent interest and CNOOC Petroleum Guyana Limited, a wholly-owned subsidiary of CNOOC Limited, holds 25 percent interest.
On December 20, ExxonMobil announced that oil production has started from the Liza field offshore Guyana ahead of schedule and less than five years after the first discovery of hydrocarbons, which is well ahead of the industry average for deepwater developments.
Production from the first phase of the Liza field, located in the Stabroek Block, is expected to reach full capacity of 120,000 barrels of oil per day in coming months, and the first cargo is set to be sold within several weeks.
“This historic milestone to start oil production safely and on schedule demonstrates ExxonMobil’s commitment to quality and leadership in project execution,” said Darren Woods, chairman and chief executive officer of Exxon Mobil Corporation. “We are proud of our work with the Guyanese people and government to realize our shared long-term vision of responsible resource development that maximizes benefits for all.”
The concept design for the Liza Phase 1 development project features the Liza Destiny floating, production, storage and offloading (FPSO) vessel moored 190 kilometers offshore Guyana, and four subsea drill centers supporting 17 wells.
Approximately 1,700 of ExxonMobil’s employees and other workers supporting its activities in Guyana are Guyanese – more than 50 percent of the total workforce. This number will continue to grow as additional operations progress. ExxonMobil and its direct contractors have spent approximately $180 million with more than 630 local suppliers since the first discovery in 2015.
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