2021 Full Year Results

TEN investment focused on material resource potential Significant recovery potential (mmbbls) 10 km Defined projects 31% EUR Excluding undefined contingent and prospective resource projects Infill 12% Existing wells 21% Produced 36% Enyenra and Ntomme Significant infill drilling opportunities, targeting improved recovery Tweneboa Defined projects target undeveloped reservoirs including: Tweneboa Gas (with condensate), Tweneboa Oil Reservoirs, Ntomme Far West Considerable prospective resources identified for appraisal in the west of the licence TULLOW TEN Development & Production Area Existing producing areas Infill Defined projects Prospective Tullow Oil plc | 2021 Full Year Results Slide 22

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