"Of the 3.8Bb, 700Mb (P10 resource estimate) are from Jaguar, and 3.1Bb (P50 resource estimate) from Corentyne prospects Eagle Deep (2.5Bb), Eagle Shallow (300Mb), Crabwood (200Mb) and Kabukalli (100Mb)."
They are counting 100% from Jaguar, but CGX own only 25%. This would leave CGX with about 500M barrels less than what the article states.