FY26 Half Year Results Presentation

• Entering 6th consecutive year of distributions, totalling AUD 17.0 cents per share since 2021
• Thailand acquisition added ~2,000 boe/d and ~3.5 MMboe (2P); further growth opportunities under active review
• Asset development underway across portfolio, including Block 22/12, Mereenie, Maari, and Thailand

Horizon Oil Ltd reported its FY26 Half Year Results, highlighting key achievements and strategic delivery. The company is entering its 6th consecutive year of distributions, totalling AUD 17.0 cents per share since 2021. The acquisition of Thailand assets in August 2025 added ~2,000 boe/d and ~3.5 MMboe (2P) to the portfolio, with further growth opportunities under active review. Asset development is underway across the portfolio, including a liquids-handling upgrade in Block 22/12, two gas infill wells planned at Mereenie, workover activities at Maari, and the Nam Phong booster compressor FID and Sinphuhorm tie-ins in Thailand. Financially, Horizon delivered Underlying Revenue of US$54.2 million and EBITDAX of US$28.6 million, with a statutory profit after tax of US$2.4 million and operating cashflow of US$25.1 million. The company declared an interim FY26 dividend of 1.5 cps (~A$24 million) for payment in April 2026. Horizon continues to focus on operational excellence, energy security, environmental initiatives, and the energy transition, with a strong balance sheet and robust free cash flow generation.

Horizon expects to maintain its regular distributions to shareholders, with the interim FY26 dividend of 1.5 cps to be paid in April 2026.

Horizon sees further growth opportunities from its recent Thailand acquisition and continues to advance development projects across its portfolio to support production and cash flow.