Key Highlights

  • The Sabre well reached a measured depth of approximately 9,800 feet.
  • Brookside holds an approximate 70% working interest in Sabre and Whaler.
  • Earlier FMDP wells lifted gross operated production above 5,000 barrels of oil equivalent daily.
  • Completion and flow testing will determine the commercial contribution from Sabre.

Brookside Energy (ASX:BRK) is progressing a new operated drilling programme in Oklahoma’s Anadarko Basin. The Sabre well has moved through key drilling stages, while the planned Whaler well provides a second opportunity within the SWISH area. Completion and flow testing will decide whether the programme adds meaningful production and Cash Flow to the company’s existing well portfolio.

Recent Developments

Brookside's recent focus has been its operated drilling in the SWISH Area of Interest in the Anadarko Basin. In a July 2026 operational update, the company reported that its Sabre well had reached a measured depth of around 9,800 feet, having set and tested intermediate casing, landed the curve in the Sycamore Formation and begun drilling a lateral section of roughly 1.5 miles. Brookside holds an approximate 70% working interest in the Sabre well and has flagged a companion Whaler well carrying the same interest. Managing director David Prentice framed the update as covering drilling milestones only - completion, stimulation and flow testing, the results that ultimately determine commercial viability, were still to come. The program builds on earlier success at SWISH, where the company's FMDP wells lifted gross operated production sharply and moved into commercial production.

Business and Investment Context

Brookside is a Perth-headquartered explorer and producer concentrated in Oklahoma's Anadarko Basin, targeting the Sycamore Lime and Woodford Shale formations. Its investment case rests on the Economics of high-margin horizontal wells and its ability to grow net production through operated drilling and selective working-interest increases. Earlier campaigns demonstrated the model - four new FMDP wells drove a 178% surge in gross operated production to more than 5,000 barrels of oil equivalent per day, lifting the company's producing well inventory - but as a small producer Brookside remains exposed to oil and gas price swings, drilling and completion risk, and the Capital intensity of a continuous program. The Sabre and Whaler wells represent the next test of whether the company can keep converting drilling activity into production and cash flow. Until flow-test results are in, the outcome of the current program stays uncertain.

What to Watch Next

The most tangible catalysts ahead are the completion and flow testing of the Sabre well and the drilling of the companion Whaler well, both of which will show whether the latest SWISH activity translates into meaningful production. Beyond that, quarterly activity and cash-flow reports, updates on net production rates and any commentary on further drilling or acreage will shape sentiment. The dominant risks are operational - well performance and completion outcomes - alongside the ever-present sensitivity to Commodity prices that governs a producer of Brookside's scale.

Outlook and Key Considerations

Brookside’s operated model offers direct exposure to drilling success but also concentrates execution risk. Sabre completion results and progress at Whaler will provide the clearest evidence of whether SWISH can support another stage of production growth.