Brookside identifies new Anadarko Basin AOI

• Newly designated Riverbend AOI targets Devonian, Mississippian and Pennsylvanian age reservoirs
• Potential for several million barrels of recoverable oil using modern horizontal wells and multi-stage completions
• Modelling supports ROR up to ~76% and ~12-month payout under base-case assumptions

Brookside Energy Limited has announced the addition of a new Area of Interest (AOI) in the Anadarko Basin, the Riverbend AOI. The Riverbend target resource is laterally continuous and located in a part of the Anadarko Basin that has already produced tens of millions of barrels of oil. The target formations reside in the oil to volatile-oil window, supporting liquids-rich outcomes and lower development costs relative to deeper, gas-prone areas. Brookside has identified a large, attainable oil-in-place resource in a proven region of the Anadarko Basin, with a conservative single-digit recovery factor indicating several million barrels of recoverable oil, utilising modern horizontal wells and multi-stage completions. The Riverbend AOI contains target formations that average ~80 feet in thickness and reach up to 200 feet thick in places, exhibiting reservoir qualities capable of trapping and storing substantial volumes of hydrocarbons. Brookside's modelling indicates a compelling development case, supporting up to ~76% rate of return (ROR) using base-case costs and current strip pricing. Success in this AOI has the potential to deliver a material uplift in reserves at an attractive point in the cycle. Leasing activities have commenced with an initial goal of securing control of up to four 1,280-acre drilling spacing units (DSUs) to support future development.

Brookside will advance Riverbend through a staged program: initial leasing, establishing an operated position, securing regulatory approvals, proposing and drilling reserve-definition wells, completion and flow-testing, reserves booking, and ultimately full-field development. This work will be executed over multiple quarters, with near-term catalysts at each step.