Investor Presentaiton

COOPER ENERGY Multiple growth opportunities within portfolio High graded offshore exploration and appraisal prospects to backfill existing infrastructure Future exploration options¹ Near term exploration'¹ Development/ appraisal² Production³ Lower risk Higher risk Chimaera East Gummy Deep Manta Deep Wobbegong Heera Pecten East Juliet Nestor Elanora Isabella Gummy Henry Gippsland Basin (COE net share 100%) Otway Basin (COE net share 50%, except Nestor) Manta Annie Sole CHN 222 PJe 2P reserves, 296 PJe 2C resources and >1 Tcf mean resource potential, close to market, and with a clear pathway to commercialisation via operated gas plants (Athena 150 TJ/d, OGPP 68 TJ/d) 1Bubble size of exploration prospects is based on unrisked mean recoverable resource estimate (Cooper Energy net share) | 2Bubble size of Henry, Manta, Gummy and Annie bubble size is based on 2C Contingent Resources estimate (Cooper Energy net share) at 30 June 2023 | 3Bubble size of Casino-Henry-Netherby (CHN) and Sole is based on 2P Reserves estimate (Cooper Energy net share) at 30 June 2023 COOPER 15 ENERGY

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