7 Suriname: A Top-Ranked Exploration Opportunity The Suriname basin is considered similar to the working petroleum systems of the West African transform margin. The emerging petroleum system in Suriname is supported by the presence of onshore producing fields and most recently by nearby discoveries offshore Guyana, including the Liza-1 well. Kosmos holds interests in Block 42 and Block 45, which are positioned centrally in the Suriname- Guyana-Basin, and located to the east of the recent play opening Liza-1 oil discovery. Likewise, the blocks are also positioned to the northwest of the French Guyana Basin’s Zaedyus oil discovery. The Tambaredjo and Calcutta fields onshore Suriname demonstrate that a working petroleum system exists, and geological and geochemical studies suggest the hydrocarbons in these fields were generated from source rocks located in the offshore basin. The source rocks are believed to be analogous in age to those which have charged numerous fields offshore West Africa. In 2018, Kosmos’ first well offshore Suriname will target the Anapai Prospect in Block 45. This test is expected to be followed by a well in Block 42, which will evaluate a potential extension of the play in which Liza was discovered. SURINAME FRENCH GUIANA GUYANA BLOCK 42 BLOCK 45 APETINA TREND AURORA TREND ANAPAI PROSPECT TURBOT-1 LIZA-1 PAYARA-1 B e r b i c e C a n y o n Tambaredjo Oil Field Atlantic Ocean Upper Cretaceous Prospects Lower Cretaceous Prospects Upper Cretaceous Source Lower Cretaceous Source 70 miles 100 km SURINAME EXPLORATION