Investor Presentaiton

2024 production reflects high level of planned shutdowns and timing of new wells on-stream 2025 production expected to be similar to 2024 with increased volumes from new wells and fewer planned outages Production Harbour Energy kboepd 186 2023 Natural decline Vietnam disposal¹ Impacted by deferred drilling at non-operated hubs 2024 guidance 150-165 kboepd Unusually high planned shutdowns 1 Sale of Vietnam business is assumed to complete H1 2024 Harbour Energy | Investor Presentation Increased volumes from 2024 capital programme Normal planned maintenance levels Production efficiency New wells 2024 Natural decline Vietnam Production New 2025 disposal¹ efficiency wells 13

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