Kosmos' Appraisal Extends Teak Discovery Offshore Ghana

Kosmos announced that the Teak-3A appraisal well has confirmed a northern extension of the Teak discovery on the West Cape Three Points Block offshore Ghana. The Teak-3A well is located approximately 4 kilometers (2.5 miles) north of Teak-1 and was designed to test the potential structural and stratigraphic extension of reservoirs encountered in the original discovery well.

Analysis of well results, including wireline logs, reservoir pressures and fluid samples indicate that the Teak-3A well encountered approximately 35 meters (115 feet) of hydrocarbons in multiple good-quality reservoirs. The analysis identified 13 meters (43 feet) of 36–39 degree API gravity and 22 meters (72 feet) of gas-condensate pay. The hydrocarbon-bearing reservoirs encountered were Campanian and Turonian in age and similar to those seen in the discovery well.

Brian F. Maxted, President and Chief Executive Officer, said "The extension of the Teak discovery is a significant milestone in progressing the appraisal and delineation of this field. We have confirmed the presence of a number of hydrocarbon pools in Teak-3A and significantly extended the productive area of the discovery. While more operational work and technical studies will be necessary to fully define the field, we are very encouraged by the result, which gives further momentum for additional development of the resources discovered on our operated block. Our appraisal and delineation programs continue to generate substantial value for Kosmos, and we look forward to a number of additional near-term appraisal and exploration well results."

The Transocean Marianas (DW semisub) drilled the Teak-3A well to a total depth of 3,222 meters (10,571 feet) in 444 meters (1,457 feet) of water. Following the completion of operations at Teak-3A, the rig will be released to another operator. Kosmos anticipates drilling the Teak-4A appraisal well in the second quarter of 2012. Additional appraisal at Teak is being planned for the second half of 2012.

West Cape Three Points Block Ownership Interest

Kosmos Energy is the operator of the West Cape Three Points Block with a 30.875% interest. Anadarko Petroleum Corporation has a 30.875% interest, Tullow Oil plc has a 26.396% interest, Sabre Oil & Gas Holdings Limited has a 1.854% interest; and the Ghana National Petroleum Corporation has a 10% carried interest.

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