Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Doughty Jason
2. Date of Event Requiring Statement (Month/Day/Year)
11/16/2012
3. Issuer Name and Ticker or Trading Symbol
Kosmos Energy Ltd. [KOS]
(Last)
(First)
(Middle)
C/O KOSMOS ENERGY, LLC, 8176 PARK LANE, SUITE 500
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Senior V.P., General Counsel
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

DALLAS, TX 75231
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Shares 155,430 (1)
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Doughty Jason
C/O KOSMOS ENERGY, LLC
8176 PARK LANE, SUITE 500
DALLAS, TX 75231
      Senior V.P., General Counsel  

Signatures

/s/ Phillip Feiner, as Attorney-in-Fact 11/20/2012
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Of these: (1) 31,840 restricted shares that were granted under the Issuer's Long-Term Incentive Plan (the "Plan") are scheduled to vest ratably on October 1 of each of 2013, 2014 and 2015, subject to the terms of the Plan and the applicable award agreement issued thereunder, which terms provide for accelerated vesting under specified circumstances; (2) 42,453 restricted shares that were granted under the Plan and that are scheduled to vest on May 16, 2015, subject to the satisfaction of service and performance conditions specified in the Plan and an award agreement issued under the plan, which terms provide for accelerated vesting under specified circumstances; and (3) 25,962 restricted share units that were granted under the Plan and are scheduled to vest 25% on June 1 of each of 2013, 2014, 2015 and 2016, subject to the terms of the Plan and the applicable award agreement issued thereunder, which terms provide for accelerated vesting under specified circumstances.

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