Investor Presentaiton

UPSTREAM: OPERATING PERFORMANCE FY23 production guidance updated to 46-50 kboepd Historic production 2012 - 2023 (boepd) PRODUCTION 60,000 Liquids Gas 50,000 40,000 49,867 51,183 46,498 47,693 48,152 43,372 17,469 24,198 44,104 18,603 20,083 22,563 14,369 36,924 19,369 30,823 19,070 28,341 30,000 25,877 6,571 20,020 20,000 4,867 23,474 29,003 15,786 24,252 25,669 23,935 33,714 29,091 28,069 24,735 5,226 17,853 14,794 10,000 10,091 0 2012 2103 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 YTD Net quarterly production by asset (boepd) 60,000 50,000 40,000 22,047 21,389 18,524 19,788 19,138 19,098 30,000 7,420 10,150 9,568 7,271 12,024 20,000 17,778 8,922 10,000 17,656 17,119 1,586 9,445 17,535 17,613 15,466 12,595 0 Q1 2022 Q2 2022 Q3 2022 Q4 2022 Q1 2023 Q2 2023 Q3 2023 OML 4, 38,41 OML 53 ■OPL 283 ■ OML 40 ■Gas Production 9 SEPLAT ENERGY INVESTOR PRESENTATION Sep nergy ■ 9M 2023 production of 48,152 boepd (7.7 MMbbls and 31.8 Bcf), up 11% YOY, supported by higher availability of FOT - AEP continued to provide an alternative evacuation solution, helping to de-risk our Western Asset production ■ Production opex of $9.7/boe, higher crude handling charges offset higher efficiency ASSET PERFORMANCE ANALYSIS OML 4, 38, 41 Liquids production declined during the period due to natural decline and delays to the on-stream timing of new wells ■ OML 53 Production continues to be impacted by unavailability of the TNP. Antan-Ebocha line issues resolved allowing return of Jisike production in August ■ OML 40 - Production up 61% during the period, the increase supported by strong performance of new well stock and higher production uptime - Sibiri extended well test ongoing, project remains on track for FID in 4Q 2023 SAFTEY & EMISSIONS Zero Lost Time Incidents reported on operated assets in 6M 2023, cumulative 6.4m hours Carbon Emissions 26.0 kg CO2/Boe reliable energy, limitless potential

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