b'SIGNATURESPursuant to the requirements of Section 13 or 15(d) of the Securities Act of 1934, the Registranthas duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.KOSMOS ENERGY LTD.Date: February 28, 2019 By: /s/ T HOMASP. C HAMBERSThomas P. ChambersSenior Vice President and Chief Financial OfficerPursuant to the requirements of the Securities Exchange Act of 1934, this report has been signedbelow by the following persons on behalf of the Registrant and in the capacities and on the datesindicated.Signature Title Date/s/ A NDREWG. I NGLIS Chairman of the Board of DirectorsAndrew G. Inglis and Chief Executive Officer (Principal February 28, 2019Executive Officer)/s/ T HOMASP. C HAMBERS Senior Vice President and ChiefThomas P. Chambers Financial Officer (Principal Financial February 28, 2019Officer)/s/ P AULM. N OBEL Senior Vice President and ChiefPaul M. Nobel Accounting Officer (Principal February 28, 2019Accounting Officer)/s/ B RIANF. M AXTED Director February 28, 2019Brian F. Maxted/s/ S IRR ICHARDB. D EARLOVE Director February 28, 2019Sir Richard B. Dearlove/s/ D EANNAL. G OODWIN Director February 28, 2019Deanna L. Goodwin176'