Kosmos Energy Ltd. — Director's Dealing 2013

May 20, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Kosmos Energy Ltd. (KOS)
CIK: 0001509991
Period of Report: 2013-05-16

Reporting Person: Haas Eric (SVP, Production and Tech. Srvc)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-05-16	Common Shares	F	6170	$11.52	Disposed	251918	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Shares	89313	Direct

Footnotes

F1: These shares were withheld by the Issuer to satisfy the tax withholding requirement arising from the vesting of restricted shares granted to the reporting person under the Issuer's Long Term Incentive Plan.

F2: These shares are directly owned by Alaminos, LP, an entity controlled by the reporting person. The reporting person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.