Horizon is a diversified, resilient and cash-generative five-country Asia-Pacific oil and gas producer, delivering reserves growth, strong cash generation and disciplined capital allocation.

Horizon is an Australian based company, listed on the Australian stock exchange which produces ~7,300 boepd¹  from nine producing assets across five countries representing a highly diversified portfolio. We have low-cost conventional oil and gas production from joint venture interests in:

• Block 22/12, offshore China where our partners are CNOOC Limited, Fosun International Limited (via Roc Oil Company) and Oil Australia Ltd
• PMP 36180 Maari/Manaia fields, offshore New Zealand, where our partners are OMV and Cue Energy Resources Limited
• Australia Amadeus Basin¹: Mereenie (OL4 & OL5), Palm Valley (OL3) and Dingo (L7): our partners are Echelon Mereenie, Central Petroleum Limited and Cue Energy
• Block E5N & EU1, Sinphuhorm gas and condensate field, onshore Thailand: our partners are PTTEP and Matahio
• Block E5, Nam Phong gas field, onshore Thailand: our partners are PTTEP and Matahio
• Mahato PSC and Sampang PSC, Indonesia²

¹ includes Horizon’s proportionate economic interest in Cue’s interests in Mereenie, Palm Valley and Dingo assets

² Horizon completed its off-market takeover of Cue Energy Resources Limited on 2 July 2026 and holds a 57.03% controlling interest.  For financial relating purposes, effective control was obtained on 17 June 2026

In both of our non-operated oil projects, Horizon has been a long-term partner (over 20 years in China and 17 years in New Zealand) and was a participant prior to and throughout the project appraisal and development phases, including the 2022 Block 22/12 12-8E development.