The basin is over 580 kilometers long and 150 kilometers wide with a potential prospective area in excess of 50,000 square kilometers. The basin is filled in places with more than 6,000 meters of Mesozoic and Cenozoic sediments and locally by Plio-Pleistocene basalts. Bouger and residual gravity anomalies have highlighted several sub-basins separated by intra-basin highs. Historic wells drilled in the block have proven the existence of natural gas and possibly oil.
Africa Oil currently holds a 30% working interest in Block 9. CNOOC is the operator.
