FROM AFRICA TO THE AMERICAS, KOSMOS ENERGY OPERATES IN MANY NATIONS. WHEREVER WE ARE, KOSMOS IS COMMITTED TO DEVELOPING PEOPLE, INCREASING ECONOMIC OPPORTUNITIES AND IMPROVING LIVES. WE WORK WITH GOVERNMENTS, CIVIL SOCIETY ORGANIZATIONS AND OTHER GROUPS TO HELP BUILD A BETTER FUTURE FOR ALL. About Kosmos Energy Kosmos is a full-cycle deepwater independent oil and gas exploration and production company focused along the Atlantic Margins. 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 infrastructure-led exploration (Equatorial Guinea and U.S. Gulf of Mexico), emerging basins (Mauritania, Senegal and Suriname) and frontier basins (Côte d’Ivoire, Namibia and São Tomé and Príncipe). As an ethical and transparent company, Kosmos is committed to doing things the right way. Our Business Principles articulate the company’s commitment to transparency, ethics, human rights, safety, and the environment. Kosmos Energy is listed on the New York Stock Exchange and London Stock Exchange, traded under the ticker symbol KOS. For additional information, visit our website www.kosmosenergy.com. 2 A Conversation with Andy Inglis 6 Company Overview/Financial Highlights 7 Kosmos Energy Business Principles 20 Full-Cycle Operations 22 Equatorial Guinea 26 U.S. Gulf of Mexico 30 Ghana 36 Kosmos Innovation Center 42 Mauritania 46 Senegal 50 Côte d’Ivoire 1 52  São Tomé and Príncipe 56 Suriname 60 IPIECA/API/IOGP Content Index 63 2018 Performance Data