Investor Presentaiton

Appendix PremierOil Mexico: new 3D seismic data confirms prospectivity Zama Discovery Block 30, Mexico: new 3D seismic data validates Wahoo potential ■ Premier 30%, WDEA (op.) ■ Water depth of 35-150m ■ New 3D data confirms Wahoo as a low risk prospect with a flat-spot Significant improvement in definition of Wahoo's deeper potential ■ Confirms amplitude supported -200m- 10m Premier interests Oil field / discovery Prospects/leads 3D seismic survey Cabrilla Pike Loro Wahoo Block 30 follow on potential at Cabrilla ■ Drilling targeted for 2022 Amoca 10km Block 7 MEXICO Wahoo Prospect P50-P10 gross resource 77-116 mmbbls PSDM Flat-spot Burgos Blocks 11 and 13: additional upside identified on new 3D seismic reprocessing ■ Premier 100% ■ Shallow water depth of up to 65m ■ 3 Oligo-Miocene prospects ■ (c.30-150 mmbbls each gross) Deeper Jurassic carbonate play analogous to the Arenque field Blocks captured with very attractive PSC terms ■Farm down prior to drilling to manage risk and cost 250 mmbbls Carbonate play gross resource potential Block 11 Premier interests Miocene prospects Jurassic prospects Colibri MEXICO Jacana Oligo-Miocene clastic & Mesozoic carbonate plays W E Sheartail Flamenco Seismic (default) 25000.00 20000.00 15000 00 5000.00 Chacalaca Block 13 Perico 10km Sheartail/Jacana/Chacalaca 15000.00 L-10000 00 -15000 00 Flamenco/Perico Play 25000.00 November 2020 P26

View entire presentation