Investor Presentaiton

Appendix PremierOil Block 717, Brazil: high impact, drill ready prospects ■ Acreage secured via Brazil's 11th Round ■ Premier operated, 50 per cent ■ Well deferred from July 2020 to Q1 2022 ■ 600m water depth ■ 2 intervals targeted testing stacked plays within the Upper and Lower Cretaceous ■ Berimbau: 230-450 mmbbls (Pmean to P10) gross resource ■ Maraca: 85-165 mmbbls (Pmean to P10) gross resource ■ Oil charge proven elsewhere on- block ■ Gross well cost c. $45m November 2020 Maraca Berimbau SW Exploration Well NE 1 2km Berimbau Maraca Targeting 100-600 mmbbls (P90-P10, gross unrisked) P27

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