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First oil has begun flowing ahead of schedule from the Stabroek block offshore Guyana, a milestone from one of the world's most promising basins. The production occurred fewer than 5 years after the first discovery of hydrocarbons and underscores Guyana's emergence as a major oil producer. Output from the first phase of the Liza field soon will reach 120,000 B/D, with the first cargo of oil set to be sold early in 2020, according to operator ExxonMobil. "This historic milestone to start oil production safely and on schedule demonstrates ExxonMobil's commitment to quality and leadership in project execution," ExxonMobil Chairman and CEO Darren Woods said in a statement. "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."
ExxonMobil's Pluma-1 well off Guyana encountered 37 m of high-quality hydrocarbon-bearing sandstone reservoir, marking the firm's 10th discovery in South America's newest oil powerhouse. Located 27 km south of the Turbot-1 discovery on the southeast portion of the 26,800-sq-km Stabroek Block, Pluma-1 was drilled to 5,013 m in 1,018 m of water by the Noble Tom Madden drillship, which spudded the well 1 November. The major now estimates that its discovered recoverable resources for the block total 5 billion BOE, up 1 billion BOE from its previous estimate made over the summer, around the time that it announced its eighth discovery, Longtail, also on the southeast part of the block. Its ninth discovery came via the Hammerhead-1 well to the west. ExxonMobil's offshore Guyana operations, which may eventually produce more than 1 million B/D of oil, best compares with the Lula-Iracema area in Brazil's deep waters, said research and consulting firm Wood Mackenzie.
ExxonMobil and London independent Tullow Oil both announced oil discoveries offshore Guyana on 16 September, bringing their tallies in the basin to 14 and two, respectively. ExxonMobil's Tripletail-1 well on the Stabroek block encountered 33 m of high-quality oil-bearing sandstone reservoir, the US major said. Drilled in 2003 m of water, Tripletail-1 is 5 km northeast of ExxonMobil's Longtail discovery, marking the sixth find in the Turbot area. "This discovery helps to further inform the development of the Turbot area," said Mike Cousins, ExxonMobil senior vice president of exploration and new ventures. Tripletail-1 adds to the previously announced estimated recoverable resource of more than 6 billion BOE on the block. After wrapping up work at Tripletail, the Noble Tom Madden drillship will next drill the Uaru-1 well located 10 km east of ExxonMobil's Liza field, where production is scheduled to begin next year.
ExxonMobil will add to the previously announced gross discovered recoverable resource estimate for the block of around 9 billion BOE via a discovery with its Uaru-2 well. The probe encountered 120 ft of high-quality oil-bearing sandstone reservoir, including newly identified intervals below the original Uaru-1 discovery. The well was drilled in 5,659 ft of water and is located approximately 6.8 miles south of the Uaru-1 well. That well, drilled in January 2020, encountered 94 ft of oil-bearing sandstone. "The Uaru-2 discovery will add to the discovered recoverable resource estimate of approximately 9 billion barrels of oil equivalent," said John Hess, chief executive of Hess Corporation, a partner in Stabroek.
The string of successful exploration wells offshore Guyana continues for ExxonMobil which announced today its 18th discovery. The well was drilled in the massive Stabroek field that comprises 6.6 million acres about 125 miles north of Guyana's coast. ExxonMobil said the discovery well, called Redtail-1, has helped bolster the company's previous estimation that the block holds more than 8 billion bbl in proven and recoverable barrels of crude. Redtail-1 found more than 230 ft of oil-bearing sandstones and was drilled in a water depth of 6,164 ft. The newly drilled well is just 1.5 miles from the operator's 17th discovery, the Yellowtail-2 well.