Kosmos Energy’s Makore-1 Well Extends Turonian Play Fairway to Eastern West Cape Three Points Block Offshore Ghana

Well Encounters Thick Water-Bearing Sands

DALLAS--(BUSINESS WIRE)--Kosmos Energy (NYSE: KOS) announces today that the company’s Makore-1 exploration well on the West Cape Three Points Block offshore the Republic of Ghana encountered 37 meters (121 feet) of good-quality Campanian-age water-bearing sandstone reservoirs and 46 meters (151 feet) of good-quality Turonian-age water-bearing sandstone reservoirs. The Makore-1 well was Kosmos’ first well in the southeastern portion of the block. The well explored a stratigraphic trap in a Turonian-age fan system.

The Makore-1 well is located 25 km (15 miles) southeast of the company’s Mahogany-1 exploration well that discovered the Jubilee Field. The “Atwood Hunter” semi-submersible rig drilled the Makore-1 well in a water depth of 1,409 meters (4,623 feet) to a total depth of 3,876 meters (12,716 feet). The “Atwood Hunter” will remain on the block to drill the Akasa-1 exploration well, formerly known as the Dahoma Up-dip prospect. The Akasa-1 well is expected to be spudded shortly.

Kosmos is the operator of the West Cape Three Points Block in which the company holds a 30.875% interest. An affiliate of Anadarko Petroleum Corporation has a 30.875% interest; an affiliate of Tullow Oil plc has a 22.896% interest; E.O. Group Limited has a 3.5% interest; Sabre Oil & Gas Holdings Limited has a 1.854% interest; and the Ghana National Petroleum Corporation has a 10% carried interest.

About Kosmos Energy

Kosmos Energy Ltd. (NYSE: KOS) is an international oil and gas exploration and production company focused on underexplored regions in Africa. The company’s asset portfolio includes major discoveries and exploration prospects with significant hydrocarbon potential in several West African countries. For additional information, visit www.kosmosenergy.com.

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