Brookside Energy Enters Final Phase at Suttles Wells Ahead of First Sales
Key Takeaways
- Completion operations have commenced at the Suttles Pad in Oklahoma's Anadarko Basin, marking the final capital-intensive phase before Brookside Energy brings two new wells into production.
- Brookside holds approximately 70% working interest in both Suttles wells — the Sabres 21-1S-3W SXH1 targeting the Sycamore Formation and the Whalers 2-1-1S-3W WXH2 targeting the Woodford Formation.
- A zipper-frac technique will be used across 64 planned stimulation stages combined, a method designed to maximise reservoir contact while minimising idle time between stages.
- All major pre-completion milestones are complete — both wells drilled and cased, frac equipment mobilised, surface systems commissioned, and high-pressure lines tested.
- The operational sequence ahead runs from stimulation through drill-out, flowback, and then first sales, with production facilities being readied in parallel.
Suttles wells enter final phase as Brookside moves toward first sales
Completion operations are now underway at the Suttles Pad in Oklahoma’s Anadarko Basin, marking the final major development phase before Brookside Energy brings its two newest wells into production. The milestone follows the successful drilling and casing of both the Sabres 21-1S-3W SXH1, which targets the Sycamore Formation, and the Whalers 2-1-1S-3W WXH2, which targets the Woodford Formation.
Brookside holds an approximately 70% working interest in the Suttles development, making the performance of these two wells the key commercial exposure figure for investors watching the programme unfold.
When big ASX news breaks, our subscribers know first
What completions mean and why this stage matters
“Completion operations” is the phase that follows the physical drilling of a well. Once a well has been drilled and cased (lined with steel pipe and cement to stabilise the borehole), a completion programme stimulates the reservoir rock so hydrocarbons can flow to surface. In unconventional plays like the Anadarko Basin, this stimulation is hydraulic fracturing, commonly known as fracking.
The Suttles wells will be completed using a zipper-frac technique. This is a continuous stimulation method where the frac crew moves sequentially between the two wells, alternating stages to maintain efficiency and reduce idle time.
A “stage” refers to a discrete section of the wellbore that is isolated and pressurised to fracture the surrounding rock. A total of 64 stages are planned across both wells combined — a figure that matters because higher stage counts generally allow more of the reservoir to be contacted and stimulated. Completions represent the final capital-intensive phase of development. Once this work is done, the wells are ready to generate revenue.
Operational progress: what’s been achieved and what comes next
At the date of the announcement, the following had been accomplished at the Suttles Pad:
- Both wells successfully drilled and cased
- Frac spread and associated equipment mobilised to location
- Water handling and surface systems commissioned
- High-pressure frac lines successfully tested
- Stimulation operations commenced, with 64 stages planned across the two wells
The sequence ahead follows a clear operational path:
- Stimulation (fracking all planned stages across both wells)
- Drill-out and clean-up operations
- Flowback (returning frac fluids to surface)
- First sales
Production facilities are being readied in parallel, indicating the company is managing the full production ramp timeline rather than sequencing each step in isolation. The most capital-intensive and operationally complex work — drilling, casing, and equipment mobilisation — is now complete.
David Prentice, Managing Director & CEO
“Both Suttles wells are drilled and cased and we are now into completions. Our focus is on executing the program safely and efficiently, getting every planned stage away as designed and then moving through clean-out and flowback before bringing both wells online. The team has done a great job getting us to this point. Now it is about finishing the job and delivering two new operated wells into production.”
The next major ASX story will hit our subscribers first
Suttles in the context of Brookside’s broader SWISH strategy
Suttles sits within Brookside’s SWISH Area of Interest (AOI), the company’s concentrated operating position in Oklahoma’s Anadarko Basin. The Anadarko Basin is described by the company as one of North America’s most productive hydrocarbon regions, and the SWISH AOI is where Brookside has been systematically building its production base, reserve inventory, and drilling runway.
The table below summarises the key facts for the Suttles development at the time of this announcement.
| Well Name | Target Formation | Working Interest | Stimulation Stages | Status |
|---|---|---|---|---|
| Sabres 21-1S-3W SXH1 | Sycamore | ~70% | 64 stages planned across both wells combined | Completions underway |
| Whalers 2-1-1S-3W WXH2 | Woodford | ~70% | 64 stages planned across both wells combined | Completions underway |
Brookside’s stated strategy is straightforward: grow production, build scale, and return capital, executing disciplined development while maintaining a strong balance sheet. The Suttles programme is a direct expression of that approach, with the company operating the wells at a meaningful working interest stake and managing the development timeline through to first sales. No production rates or financial outcomes have been disclosed in this announcement.
Don’t Miss the Next ASX Energy Breakout
Get FREE breaking ASX oil and gas alerts delivered to your inbox within minutes of release, complete with in-depth analysis. Join 30,000+ investors already ahead of the market by clicking the “Free Alerts” button at Big News Blast to receive real-time coverage the moment energy news hits the ASX.