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Valeura Energy Inc | September 2025 Corporate Presentation | Timothy Duncan | Page 8 of 11 | October 16, 2026

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Nong Yao Oil Field – Successful Development Delivers Production Growth 8 174177 425671 7F7F7F F2F2F2 04AEEF 0170C0 37B050 C00000 DDEBF8 000000 666666 FFFFFF 7030A0 2025 Work Programme Highlights ? 11 development and appraisal wells, covering all producing facilities, A,B,C – More thorough sweep of oil from producing reservoirs – Accessing additional fault blocks and reservoir layers ? Nong Yao D seismic interpretation underway following exploration oil discovery in 2024 – Additional follow-up exploration opportunities identified ? Nong Nuch prospective area under evaluation ? Successful project delivery significantly increased Nong Yao production ? All six horizontal wells precision geo- steered and encountered geological targets as expected ? Additional successful appraisal well now added as a 7 th producer ? Two wells extended to intersect appraisal targets – Adds spare productive capacity – Forms the basis for future infill drilling campaign ? Execution of drilling programme 25% under budget 2024 Nong Yao C Development Nong Yao C A B C Licence G11/48 (Nong Yao) Oil fields Exploration areas Production platform FSO 1) H1 2025 average working interest share production before royalties 2) Reserves per NSAI report, as of December 31, 2024 3) Anticipated recoverable volumes at FID as represented by seller and disclosed by Thailand’s Department of Mineral Fuels (DMF). Sum of volumes added and historic production, as disclosed by the DMF. Source: DMF Annual Reports (https://dmf.go.th/public/list/data/index/menu/668/groupid/1) 4) Pre-2023: working interest share historic production as disclosed by the DMF. Valeura did not have an interest prior to completion of its transaction with Mubadala Energy on March 22, 2023 Slide 8 Nong Yao Oil Field – Successful Development Delivers Production Growth 3 2014 FID volume 43 Additions -29 Production 2P Reserves (end-2024) 16.9 10x mmbbl Historical reserves replacement 3,4 High-Value Oil Field Ownership 90% Operator Valeura Energy Licence expiry 2036 End of 2P economic life 2034 Production 8.8 mbbl/d light sweet crude (1) 2P Reserves 16.9 mmbbl (2) (+51% from end-2022) 2C Resources 15.2 mmbbl (5)