• May production of 100 MMscf of raw gas, 8% higher than April
• Average daily production up 5% to 3.23 MMscf
• Odin field production increased, Vali field decline was smaller than expected
• Production Uplift Program to commence in mid-July targeting 2.1-5.6 MMscf/d uplift

Vintage Energy Ltd (ASX: VEN, 'Vintage'), 50% interest-holder and Operator of the PRL 211 and ATP 2021 Joint Ventures, has reported its Southern Flank Gas Fields recorded their strongest monthly production performance in nearly 6 months. The Odin and Vali gas fields produced 100 MMscf of raw gas in May 2025, 8% higher than the preceding month's comparative of 92 MMscf. Average daily production of 3.23 MMscf was 5% higher than the preceding month's comparative of 3.08 MMscf. Total production from the fields in May were the highest since January 2025 (113 MMscf). The increased output, which occurred counter to natural decline anticipated from depletion, is attributed to operational measures taken in advance of the previously announced Production Uplift Program. These measures include back pressure reduction in the gathering system, cycling Odin-2 for pressure build-up and flow, and instrumentation reliability improvements. Production from the Odin gas field rose, with average daily gas production up from 2.30 MMscf/d to 2.47 MMscf/d. Vali recorded a smaller than anticipated decline, with average daily production of 0.76MMscf/d marginally below the April daily average of 0.78MMscf/d. Vintage Energy Managing Director Neil Gibbins said the company's team has been pursuing initiatives to lift output in advance of the Production Uplift Program, and the results have been pleasing. The Production Uplift Program, set to commence from mid-July, comprises a range of initiatives at Odin and Vali, including investigation and potential remediation of scale accumulation, and opening of additional production intervals in the Toolachee Formation at Vali and swab and re-perforation at Vali-3. The program has been modelled to provide an uplift in raw gas production of between 2.1 MMscf/d to 5.6 MMscf/d from the company's Odin and Vali gas fields with cash payback of less than three months.

The Production Uplift Program is expected to provide an uplift in raw gas production of between 2.1 MMscf/d to 5.6 MMscf/d from the company's Odin and Vali gas fields.