Yari Resources has advanced a comprehensive review of historical drilling and well data at its Arcadia coal project in Queensland’s Bowen Basin, unlocking potential resource growth targets east of its current footprint.
The explorer has compiled an expanded database of 199 historical boreholes and wells, comprising 43 coal exploration holes and 156 coal seam gas (CSG), petroleum, and stratigraphic wells within and surrounding exploration permits EPC 1054 and EPC 1772.
Historical CSG well data east of the existing resource footprint indicates greater coal seam development at depth, along with increased seam splitting. Interpreted seam depths in the revised dataset align within 0.30 metres of the 2017 geological model, confirming structural consistency across the target area.
Yari’s existing JORC-compliant Coal Resource at Arcadia stands unchanged at 282 million tonnes, comprising 164 million tonnes in the Indicated category and 118 million tonnes in the Inferred category.
The ongoing geological evaluation, coal-quality analysis, and geostatistical modelling will determine whether the historical data supports a formal resource upgrade.
Yari Resources Managing Director Courtney Taylor noted the advantages of leveraging legacy exploration data.
“Bringing together 199 historical boreholes and wells gives us a cost-effective way to test Arcadia’s growth potential,” Taylor said.
“We’re putting existing data to work, with a clear focus on the ground east of the current resource. Our next step is to assess whether this information supports a larger resource and target any additional drilling where it can add the most value.”
Near-term work will focus on completing data capture for CSG wells, updating coal-seam intervals against downhole geophysical logs, and expanding the coal-quality database.
The technical team is also conducting geostatistical analysis to establish appropriate borehole spacing for future resource classifications prior to independent Competent Person review.
