British oil firm, Afren Plc on February 6, 2012 announced that Italian oil giant Eni has started drilling on the Keta block, located in the Volta River Basin offshore Ghana.
“Eni Ghana exploration and production Ltd., operator of the Keta block which is located in the Volta River Basin offshore Eastern Ghana, has commenced drilling of the Nunya-1X (formerly named Cuda-2) exploration well with the Marianas semi-submersible drilling rig,” said Afren in a statement.
The Nunya prospect is a four-way dip closed structure with a primary reservoir target comprising Upper Cretaceous deep-marine fan sandstones that are analogous to those that have yielded significant discoveries elsewhere along the West Africa Transform Margin.
Following the farm out in 2011 of a 35% participating interest in the Keta block and transfer of operatorship to Eni, Afren said it has a 35% participating interest in the block.
While Japan’s Mitsui has 20% interest and the Ghana National Petroleum Corporation (GNPC) has 10% interest.