Investor Presentaiton

• Emerging Basin Exploration - Suriname KOSMOS Extension of emerging oil petroleum system recently opened in Guyana, provides up to five independent plays and multi-billion barrel potential, with drilling to commence 2Q'18 ENERGY. Multi-billion barrel prospectivity to be tested across 5 independent Cretaceous plays - In 2018, testing two plays: Anapai - 700 MMBbl gross unrisked early Cretaceous structural / stratigraphic trap in Block 45 Aurora/Apetina - 500+ MMBbl gross unrisked late Cretaceous Liza-type stratigraphic play in Block 42 Follow-on exploration drilling to test other independent plays in 2019-2021 Payara-1 Apetina Trend Liza-1 Turbot-1 Berbice Canyon GUYANA SURINAME OFFSHORE SURINAME BLOCK Kosmos (Operator) Aurora Trend BLOCK 42 Anapai Prospect Tambaredjo Oil Field 100 km 70 miles Liza-1 Turbot GUYANA SURINAME Apetina Trend Aurora Tertiary Trend Maastrichtian Campanian ACT Source BLOCK 45 Araku-1 Tertiary Upper Albian Sands Upper Cretaceous Prospects Lower Cretaceous Prospects Upper Cretaceous Source Lower Cretaceous Source Anapai Upper Cretaceous Albian Mid Albian Source 19

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