Investor Presentaiton

Σ M³ CORRIDOR BLOCK, INDONESIA MEDCOENERGI Corridor integration is on track 15 MedcoEnergi (operator) -54% Repsol - 36% Pertamina -10% • . • • Sumatra based PSC with 7 producing gas fields, and 2 producing oil fields Indirect ownership of gas pipelines to Duri and Singapore PSC extended to December 2043 Energy Council "Asia Pacific Deal of The Year" Integration and Adding Value • • • • Identified US$50mn operational, procurement, and commercial recurring synergy Immediately accretive with production volumes and price above acquisition case Completed systems integration in Q2, office and organizational integration on track for end-2022 Now focus on Reserve additions and ESG targets GSPL GSA extension

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