News Release Details

Kosmos Energy Ltd files Form 8-K

On November 30, 2018, Kosmos Energy Ltd ("Kosmos") filed a Form 8-K concerning the waiver by funds affiliated with The Blackstone Group L.P. and Warburg Pincus LLC of certain rights under the Shareholders Agreement and the Company's Bye-laws, including the right to nominate directors to the Company's Board of Directors with the U.S. Securities and Exchange Commission ("SEC").  On November 28, 2018, each of David B. Krieger and David I. Foley tendered his resignation as a director of the Company's Board of Directors, effective immediately.  The Form 8-K is available on the SEC's website at http://www.sec.gov and on Kosmos' website at http://investors.kosmosenergy.com/financial-information/sec-filings.

About Kosmos Energy Ltd

Kosmos is a full-cycle deepwater independent oil and gas exploration and production company focused along the Atlantic Margin. Our key assets include production offshore Ghana, Equatorial Guinea and U.S. Gulf of Mexico, as well as a world-class gas development offshore Mauritania and Senegal. We also maintain a sustainable exploration program balanced between proven basin short-cycle exploration (Equatorial Guinea and U.S. Gulf of Mexico), emerging basins (Mauritania, Senegal and Suriname) and frontier basins (Cote d'Ivoire, Namibia and Sao Tome and Principe). As an ethical and transparent company, Kosmos is committed to doing things the right way. The company's Business Principles articulate our commitment to transparency, ethics, human rights, safety and the environment.

CONTACT:

Investor Relations

Jamie Buckland, +44 (0) 203 954 2831

jbuckland@kosmosenergy.com

or

Rhys Williams +1-214-445-9693

rwilliams@kosmosenergy.com

or

Media Relations

Thomas Golembeski, +1-214-445-9674

tgolembeski@kosmosenergy.com