Investor Presentaiton

2017 A year of strong operational and strategic delivery • Cashflow - Strong operating performance: Net free cash flow of ~$320mm ■ ~$230mm used for Equatorial Guinea acquisition ■ -$90mm of net debt reduction Balance Sheet Entering 2018 with RBL refinancing complete - $1.3bn of liquidity to support further organic and inorganic growth Portfolio Equatorial Guinea acquisition immediately accretive ■ Purchased at < 2x EBITDAX vs. trading multiple of ~7x ■ Payback expected in <2 years ■ Diversifies production ■ Proven basin with exploration upside Growth - >200% organic reserve replacement - Production growth of 65% YoY1 • Exploration - Completed second phase of exploration drilling in Mauritania and Senegal Program discovered 40 Tcf of gross resource at $0.20/boe Including Yakaar - the largest hydrocarbon discovery in the world in 2017 2 world-scale LNG hubs 1. 2017 vs. 2016 including one month impact from Equatorial Guinea in 2017 KOSMOS ENERGY. 2

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