According to industry sources, Total made a non-commercial oil discovery in the Jamm 1XB new field wildcat well in the Rufisque Offshore Profond (ROP) block, deep waters of the MSGBC Basin. The rig moved off location around 6 August 2019. No further details are known yet.  Available information indicates that around 25 June 2019, Total had to interrupt drilling operations at its Jamm 1XB well. The interruption was reportedly due to a problem with the BOP. Once the problem was solved, drilling resumed and the well reached TD.   Industry sources suggested that Total has spudded Jamm 1XB on 16 April 2019. As of early June, drilling operations were ongoing. The location is in the central part of the northern portion of the block in around 2,000 m of water. Likely targets are Upper Cretaceous turbidite channels/fans on the lower slope. The hydrocarbon type to be expected could be rather oil than gas as the location falls into a compartment of the basin where Cairn made its oil discoveries. This compartment may have a lower geothermal gradient than the adjacent one to the north where Kosmos made several gas discoveries.  As of 4 April 2019, the âPacific Santa Anaâ drillship was sailing in Mauritanian waters en route for Senegal where it is expected to spud an exploration well for Total. In early March 2019, industry sources suggested that Total plans a well in the ROP block. Operations could start as early as April 2019.  Following the interpretation of the 3D seismic survey completed in June 2018 by Total, suitable prospects were identified and one of them will now be drilled. The ROP block covers 10,357 sq km and is undrilled. The block is located between Kosmos Teranga and Yakaar gas discoveries in the north and Cairnâs FAN-1 oil discovery in the south, in water depths ranging from 100m to 3,000m. It lies on the Upper Cretaceous slope and basin floor fan play fairways and holds a considerable exploration potential.    In August 2018, Petronas acquired a 30% stake in the ROP block from Total who remains operator with a 60% interest. Petrosen, the state company has the remaining 10%.
Jamm-1XB nfw (Total 60% op, Petronas 30%, Petrosen 10%) in Rufisque Offshore Profond (ROP) block, MSGBC deepwaters, reportedly P&A non-comm. oil, targets assumed U. Cretaceous turbidites. 