IRVING, Texas – ExxonMobil said today it made an oil discovery offshore Guyana at the Mako-1 well southeast of the Liza field, marking the 15th discovery on the Stabroek Block. The discovery adds to the previously announced estimated recoverable resource of more than 6 billion oil-equivalent barrels on the Stabroek Block. Mako-1 encountered approximately 164 feet (50 meters) of a ...

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