b'UNITED STATESSECURITIES AND EXCHANGE COMMISSIONWashington, D.C. 20549FORM 10-K(Mark One)\x01 ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIESEXCHANGE ACT OF 1934For the fiscal year ended December 31, 2018\x02 TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIESEXCHANGE ACT OF 1934For the transition period from to Commission file number: 001-351676APR201207345158Kosmos Energy Ltd.(Exact name of registrant as specified in its charter)Delaware 98-0686001(State or other jurisdiction of (I.R.S. Employerincorporation or organization) Identification No.)8176 Park LaneDallas, Texas 75231(Address of principal executive offices) (Zip Code)Registrants telephone number, including area code: +1214445 9600Securities registered pursuant to Section 12(b) of the Act:Title of each class Name of each exchange on which registered:Common Stock $0.01 par value New York Stock ExchangeLondon Stock ExchangeSecurities registered pursuant to Section 12(g) of the Act: NoneIndicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes \x01 No\x02Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.Yes \x02 No \x01Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the SecuritiesExchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and(2) has been subject to such filing requirements for the past 90 days. Yes \x01 No\x02Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, everyInteractive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (232.405 of this chapter) during thepreceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes \x01 No\x02Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (229.405 of this chapter) is notcontained herein, and will not be contained, to the best of registrants knowledge, in definitive proxy or information statements incorporatedby reference in Part III of this Form 10-K or any amendment to this Form 10-K. \x01Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smallerreporting company, or an emerging growth company. See the definitions of large accelerated filer, accelerated filer, smaller reportingcompany and emerging growth company in Rule 12b-2 of the Exchange Act.Large accelerated filer\x01 Accelerated filer \x02 Non-accelerated filer\x02 Smaller reporting company \x02 Emerging growth company\x02If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period forcomplying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. \x02Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes \x02 No\x01The aggregate market value of the voting and non-voting common stock held by non-affiliates, based on the per-share closing price ofthe registrants common stock as of the last business day of the registrants most recently completed second fiscal quarter was $1,954,943,075.The number of the registrants Common Stock outstanding as of February 15, 2019 was 401,252,135.DOCUMENTS INCORPORATED BY REFERENCEPart III, Items 10-14, is incorporated by reference from the Proxy Statement for the Annual Meeting of Shareholders which will be filedwith the Securities and Exchange Commission not later than 120 days subsequent to December 31, 2018.Certain exhibits previously filed with the Securities and Exchange Commission are incorporated by reference into Part IV of this report.'