Tullow to Abandon Shallow Water Tano Well

Tullow's 1N-3X appraisal well in the Shallow Water Tano block has been plugged and abandoned after being drilled 3,075m. After reviewing the results of the logging operations, Tullow decided not to flow test the well.

Testing a fault block near-shore shallow water license, in order to determine if formation reduction could be accomplished using modern drilling techniques, was used to achieve commercial flow rates from the low permeability Albian reservoirs encountered in previous wells. Although hydrocarbon-bearing sandstones were encountered, logging results indicated that the sandstones would not flow at commercial rates.

Future operations in Shallow Water Tano will continue to focus on further appraisal of existing discoveries and delineation of exploration prospects in this block, which is updip of Tullow’s recent Santonian reservoir discoveries, Mahogany and Hyedua. These discoveries were made in June and August this year in the adjacent Deepwater Tano and West Cape Three Points licenses.

Tullow (31.5%) operate Shallow Water Tano on behalf of partners Interoil (31.5%), Al Thani (22.5%), Sabre Oil and Gas (4.5% carried) and GNPC (10% carried).

Tullow is also the operator of the Deepwater Tano license (49.95%) and a partner in the West Cape Three Points license (22.9%).

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