The Stabroek block offshore Guyana holds substantially more discovered oil and natural gas recoverable resource potential, with ExxonMobil notching it 1 billion boe higher from June to 10 billion boe.

The updated resource estimate includes a discovery at the Cataback-1 well, the supermajor said. That brings the total significant discoveries in Stabroek to more than 20. Cataback, drilled about 3.7 miles east of the Turbot-1 well in 5,928 feet of water, encountered 243 feet of net pay in the sandstone reservoirs. 

“This discovery adds to the resource in the Turbot/Tripletail area, enhancing the development project potential,” said ExxonMobil’s Mike Cousins, senior vice president of exploration and new ventures. “Our proprietary technologies, global exploration experience...