Kosmos Energy Announces Pricing of Secondary Public Offering of Common Shares

  Kosmos Energy Announces Pricing of Secondary Public Offering of Common

Business Wire

DALLAS -- February 14, 2013

Kosmos Energy Ltd. (“Kosmos”) (NYSE: KOS) announced today the pricing of a
registered underwritten public offering of approximately 30 million common
shares, all of which were offered by existing shareholders and certain
officers of Kosmos. The price to the public was $11.00 per share. The
underwriters of this offering have been granted an option, exercisable within
30 days, to purchase up to an additional 4.5 million common shares from
certain of the selling shareholders on the same terms and conditions to cover
over-allotment, if any. The offering is expected to close on February 21,
2013, subject to customary closing conditions. Kosmos will not receive any of
the proceeds from the sale of the common shares.

Citigroup Global Markets Inc., Credit Suisse Securities (USA) LLC and Barclays
Capital Inc. are acting as joint book-running managers of the offering.

The offering is being made pursuant to an effective shelf registration
statement, including a prospectus and a prospectus supplement relating to the
offering, filed by Kosmos with the U.S. Securities and Exchange Commission
(“SEC”). When available, copies of the prospectus and the prospectus
supplement relating to the offering may be obtained for free by visiting the
SEC website at www.sec.gov. Alternatively, copies of the prospectus and the
prospectus supplement may be obtained from Citigroup, c/o Broadridge Financial
Solutions, 1155 Long Island Avenue, Edgewood, New York 11717, telephone (800)
831-9146, email batprospectusdept@citi.com, Credit Suisse Securities (USA)
LLC, Attention: Prospectus Department, One Madison Avenue, New York, New York
10010, telephone (800) 221-1037, email newyork.prospectus@credit-suisse.com
and Barclays Capital Inc., c/o Broadridge Financial Solutions, 1155 Long
Island Ave, Edgewood, New York 11717, telephone (888) 603-5847, email

This press release is for informational purposes only and does not constitute
an offer to sell, or a solicitation of an offer to buy, nor shall there be any
sale of these securities in any state or jurisdiction in which such an offer,
solicitation or sale would be unlawful prior to registration or qualification
under the securities laws of any such state or jurisdiction. Any offer or sale
of these securities will be made only by means of a prospectus, including a
prospectus supplement, forming a part of the related registration statement.

About Kosmos Energy

Kosmos Energy is a leading independent oil and gas exploration and production
company focused on frontier and emerging areas in Africa and South America.

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of
Section27A of the Securities Act of 1933 and Section21E of the Securities
Exchange Act of 1934. All statements, other than statements of historical
facts, included in this press release that address activities, events or
developments that Kosmos expects, believes or anticipates will or may occur in
the future are forward-looking statements.Kosmos’ estimates and
forward-looking statements are mainly based on its current expectations and
estimates of future events and trends, which affect or may affect its
businesses and operations. Although Kosmos believes that these estimates and
forward-looking statements are based upon reasonable assumptions, they are
subject to several risks and uncertainties and are made in light of
information currently available to Kosmos. When used in this press release,
the words “anticipate,” “believe,” “intend,” “expect,” “plan,” “will” or other
similar words are intended to identify forward-looking statements. Such
statements are subject to a number of assumptions, risks and uncertainties,
many of which are beyond the control of Kosmos, which may cause actual results
to differ materially from those implied or expressed by the forward-looking
statements. Further information on such assumptions, risks and uncertainties
is available in Kosmos’ Securities and Exchange Commission (“SEC”) filings.
Kosmos undertakes no obligation and does not intend to update or correct these
forward-looking statements to reflect events or circumstances occurring after
the date of this press release, except as required by applicable law. You are
cautioned not to place undue reliance on these forward-looking statements,
which speak only as of the date of this press release. All forward-looking
statements are qualified in their entirety by this cautionary statement.


Kosmos Energy Ltd.
Investor Relations
Brad Whitmarsh, +1-214-445-9772
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