58 2017 Mauritania Senegal Suriname Moroccoo Western Sahara São Tomé & Príncipe WASTE (TONS) Hazardous 830.25 319.06 2.37 N/A N/A 144.13 Non-Hazardous 412.65 135.96 6.56 N/A N/A 862.31 TOTAL 1,242.90 455.02 8.93 N/A N/A 1,006.44 Recycled/Reused/Treated 45% 62% 85% N/A N/A N/A AIR EMISSIONS (TONS) Carbon Dioxide (CO2) 118,930.15 54,458.17 8,113.02 20,881.64 15,498.28 111,361.28 Mono-Nitrogen Oxides (NOx) 2,207.86 1,010.78 150.60 387.62 287.68 2,067.15 Sulfur Dioxide (SOx) 148.67 68.11 10.15 26.10 19.38 139.20 Methane (CH4) 6.63 2.99 0.46 1.18 0.87 6.27 Volatile Organic Compounds (VOCS) 74.23 33.67 5.06 13.06 9.69 69.60 Greenhouse Gases (GHGS) 119,069.33 54,521.26 8,122.64 20,906.44 15,516.50 111,492.87 OTHER Fines and Penalties 0 0 0 0 0 0 Freshwater Use (m3 ) 26,799.25 6,159.20 N/A N/A N/A 7,012.00 Hydrocarbon or Non-Aqueous Drilling Fluid Spills 0 0 0 0 0 0 2015 2016 Mauritania Morocco Senegal Mauritania Senegal Suriname WASTE (TONS) Hazardous 184.00 92.00 10.00 298.67 112.44 10.54 Non-Hazardous 115.00 542.00 14.16 296.80 114.11 82.90 TOTAL 299.00 634.00 24.16 595.47 226.55 93.44 Recycled/Reused/Treated 27% 56% 34% 54% 43% 10% AIR EMISSIONS (TONS) Carbon Dioxide (CO2) 35,225.94 12,591.45 17,914.02 51,893.95 20,815.17 20,530.75 Mono-Nitrogen Oxides (NOx) 654.20 233.28 332.52 964.32 387.47 381.10 Sulfur Dioxide (SOx) 44.18 15.39 13.97 64.80 25.96 25.66 Methane (CH4) 2.22 1.05 1.01 2.88 1.13 11.55 Volatile Organic Compounds (VOCS) 12.54 8.10 11.19 32.50 13.00 12.83 Greenhouse Gases (GHGS) 35,272.56 12,613.50 17,935.23 51,954.43 20,838.84 20,773.30 OTHER Fines and Penalties 0 0 0 0 0 0 Freshwater Use (m3 ) 12,855.00 5,108.00 2,915.20 1,728.00 3,082.00 3,744.00 Hydrocarbon or Non-Aqueous Drilling Fluid Spills 0 0 0 0 0 0 ENVIRONMENT The Environment data presented in this report is for Kosmos operated assets only. Waste and air emissions are measured in tons, with greenhouse gas emissions measured in metric tons of CO2 equivalent. The data represents drilling rigs as well as seismic and support vessels. Kosmos drilled exploration wells offshore Mauritania and Senegal and conducted seismic surveys offshore Mauritania, Morocco, Western Sahara, São Tomé and Príncipe, and Suriname. The Ensco DS-12 drillship sat offshore Mauritania during a pause period from January 1 through March 21, 2017. Kosmos did not operate any drilling in Ghana in 2017. 2017 PERFORMANCE DATA (CONTINUED)