X0306 4 2017-05-10 0 0001509991 Kosmos Energy Ltd. KOS 0001481450 Ogunlesi Adebayo O. C/O KOSMOS ENERGY, LLC 8176 PARK LANE, SUITE 500 DALLAS TX 75231 1 0 0 0 Common Shares 2017-05-10 4 A 0 11940 0 A 1451041 D These restricted share units were granted under the Issuer's Long Term Incentive Plan (the "Plan") and are scheduled to vest 100% on the earlier of May 10, 2018 or the day immediately preceding the date of the Issuer's first annual shareholder meeting following the date of grant, subject to the terms of the Plan and the applicable award agreement issued thereunder. By: /s/ Phillip Feiner, as Attorney-in-Fact 2017-05-12