Kosmos Energy has encountered light oil at its Enyenra-4A appraisal well in the Deepwater Tano Block, offshore Ghana.
The company discovered 32m of net oil pay in multiple reservoirs following full analysis of well results, including wireline logs, fluid samples and reservoir pressures.
The well is located approximately 7km south of the Enyenra-2A well and nearly 21km south of Enyenra-3A.
Pressure data from the well demonstrates that the oil is in static communication with the other wells, indicating a continuous oil column of approximately 600m.
Kosmos Energy chief operating officer Darrell McKenna said: "The Enyenra-4A well was a very positive result for Kosmos, as we confirmed a significant downdip extension of the field and encountered more net pay at this location than our pre drill expectations."
McKenna added: "We have now proved static communication in the reservoirs over 13 miles apart. Additional appraisal activities at the field will include the monitoring of pressure gauges, which have been deployed in multiple wells to determine dynamic communication. Success at Enyenra-4A further enhances the momentum behind our drive in submission of a plan of development."
The Ocean Olympia rig drilled Enyenra-4A to a total depth of 4,174m in water of 1,878m.
Injectivity tests are currently underway at the well to provide important information for the design of the water injection system.
Kosmos Energy currently holds an 18% stake in the Deepwater Tano Block offshore Ghana.
The other partners include Tullow Oil with a 49.95% stake, Anadarko Petroleum Corporation with a 18% interest, Sabre Oil & Gas Holdings with a 4.05% stake and the Ghana National Petroleum Corporation, which has a 10% stake.