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Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

        We consent to the reference to our firm under the caption "Experts" and to the use of our report dated March 2, 2011, related to the consolidated financial statements and schedules of Kosmos Energy Holdings in the Registration Statement (Form S-1) and related Prospectus of Kosmos Energy Ltd. to be dated March 3, 2011.

/s/ Ernst & Young LLP

Dallas, Texas
March 2, 2011

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Exhibit 23.1