Investor Presentaiton

Ghana: Big Fields Get Bigger Jubilee and TEN fields provide foundation of high-margin cash flow • High-margin barrels - Growing production into improving macro environment Declining opex/bbl supports margin expansion ~$40/bbl operating margin at $60/bbl Brent in 2018 • Strong reserve replacement • - Averaged over 140% last 3 years Future development - Greater Jubilee Full Field Development Plan approved ITLOS concluded with no impact to TEN Drilling recommenced to grow production at TEN and Jubilee MBopd ― Turret Remediation Plan ■ Turret stabilization: ~4 week shutdown of oil ■ production underway Rotation to optimal heading: around year-end 2018 with minimal impact to 2018 production 1. Represents net entitlement volumes Note: Operating margin defined as Brent oil price less operating expense and taxes RRR % 20 15 10 • G5 NNW G 30 35 KOSMOS ENERGY. Jubilee & TEN Net Production1 2016 2017 2018E Jubilee TEN 250 Ghana 1P Reserve Replacement % 200 150 100 50 0 2015 2016 2017 8

View entire presentation