Brookside Energy Completes Suttles Pad Drilling and Eyes Production Phase

Brookside Energy Suttles Pad drilling completed on both the Sabres and Whalers wells, with casing set and Rig 18 released — putting the ASX-listed oil and gas company one step from first production in Oklahoma's Anadarko Basin.
By William Hadrian -
  • Brookside Energy has completed drilling on both the Sabres and Whalers wells at the Suttles Pad, with full laterals placed in the Woodford Shale target formation on each well.
  • 5½-inch production casing has been run to bottom and cemented on the Whalers well, completing the drilling and casing phase across the entire Suttles Pad program.
  • Kenai Drilling Rig 18 has been released from the Suttles Pad, marking the formal end of the drilling phase and the transition to completion operations.
  • A zipper-frac completion is planned for both wells, using sequential stimulation to optimise efficiency and cost management across the two-well program.
  • Turning the wells to sales — the moment production and revenue begin — is now the next material operational catalyst for BRK shareholders to monitor.
Summarise with AI:

Suttles Pad drilling complete as Brookside readies for production

Brookside Energy (ASX: BRK) has announced the successful completion of drilling operations on its Suttles Pad, following the safe and efficient drilling of the Whalers 2-1-1S-3W WXH2 well in the company’s SWISH Area of Interest in Oklahoma. Both the Sabres and Whalers wells have now been drilled to their planned total depths, marking a significant operational milestone ahead of the completion and stimulation phase.

The Whalers well reached its planned total measured depth after successfully drilling the full planned lateral within the targeted bench of the Woodford Shale. The 5½-inch production casing has been run to bottom and cemented in place, completing the drilling and casing phase of the well. With both wells drilled to plan and casing set, Kenai Drilling Rig 18 has been released from the Suttles Pad in the Anadarko Basin, Oklahoma.

What the Suttles Pad milestone means for investors

Two wells drilled, casing set — what happens next?

Reaching planned total depth is a meaningful checkpoint, but it is not the moment production begins. Understanding the well lifecycle helps clarify why this announcement matters and what comes next.

Here is how the process works:

  1. Drilling phase (now complete on both wells): The rig bores to the target formation, drills the horizontal lateral, and installs steel production casing cemented in place. This is the phase that has just concluded on both the Sabres and Whalers wells.
  2. Completion and stimulation phase (next): Also known as hydraulic fracturing or “fracking,” this process pumps high-pressure fluid into the rock to create fractures, allowing hydrocarbons trapped in the formation to flow to the wellbore. Wells do not produce until this phase is complete.
  3. Zipper-frac configuration: Brookside has planned to complete both wells using a zipper-frac approach. This means the same stimulation equipment completes the two wells sequentially in an alternating pattern, improving efficiency and helping manage costs across the program.
  4. Turned to sales: Once stimulation is complete and surface infrastructure is connected, the wells begin producing and generating revenue. This is the moment referred to as “turning to sales.”

For shareholders, the completion of the drilling phase removes a material category of operational risk. The work most susceptible to mechanical setbacks, cost overruns, and downhole surprises is now finished. The next value-creating event is the completion phase.

De-risking the program ahead of completion

Both the Sabres and Whalers wells have been drilled to plan, with full laterals successfully placed within their respective target formations and production casing installed and cemented on both. The announcement describes this as a “major milestone” for the Suttles Pad development, and that language is grounded in specifics: two wells, two full laterals, casing set on both, and the drilling rig released.

No setbacks have been disclosed at any stage of the drilling program. The program has tracked to plan throughout, and the transition to completion operations now begins from a position of operational confidence.

CEO David Prentice on the Suttles Pad result

David Prentice, Managing Director & CEO, Brookside Energy

“This is a major milestone for the Suttles Pad and an excellent result from the drilling program. Both wells have now been safely and efficiently drilled to planned total depth, the production casing is in place and Rig 18 has been released. This takes a significant amount of execution risk out of the program as we move into completion operations. Full credit to the entire team involved. This was a very well planned and very well executed drilling campaign, and everyone involved should be proud of the work they have done.”

The result reflects Brookside’s operational focus in the Anadarko Basin, one of North America’s most productive hydrocarbon regions. The company trades on the ASX under the ticker BRK and on the OTC Pink market as RDFEF, and has built a concentrated position in the SWISH Area of Interest in Oklahoma. Brookside’s stated strategy is to grow production, build scale, and return capital through disciplined development.

What’s next — completion operations and turning wells to sales

With drilling concluded, Brookside is now progressing preparations for the completion and stimulation of both the Sabres and Whalers wells. Key points for investors to watch:

  • Zipper-frac completion is planned for both wells, using a sequential stimulation approach to optimise efficiency across the program.
  • Turning wells to sales is the next material operational event, representing the transition from development expenditure to production and revenue.
  • Further updates will be provided by the company as completion operations progress.

No production rate guidance, specific timelines, or financial projections have been disclosed in the announcement. What is clear is that the path from the current stage to first production is well-defined, with no disclosed impediments following a drilling campaign that has executed to plan. The completion phase is the near-term catalyst for shareholders to monitor.

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Frequently Asked Questions

What does it mean that Brookside Energy has completed drilling at the Suttles Pad?

Completing drilling means both the Sabres and Whalers wells have been bored to their planned total depths in the Woodford Shale, with steel production casing run and cemented in place — the drilling rig has now been released, and the program moves into the completion and stimulation phase before production can begin.

What is a zipper-frac and why is Brookside Energy using it?

A zipper-frac is a completion technique where the same hydraulic fracturing equipment stimulates two wells sequentially in an alternating pattern, improving operational efficiency and reducing costs compared to completing each well separately — Brookside has planned this approach for both the Sabres and Whalers wells at the Suttles Pad.

When will Brookside Energy's Suttles Pad wells start producing?

No specific production timeline has been disclosed in the announcement; the next step is the completion and stimulation phase using a zipper-frac approach, after which the wells will be turned to sales — Brookside has indicated further updates will be provided as completion operations progress.

What is the SWISH Area of Interest where Brookside Energy operates?

The SWISH Area of Interest is Brookside Energy's concentrated operating position in Oklahoma's Anadarko Basin, one of North America's most productive hydrocarbon regions, where the company is developing wells targeting the Woodford Shale formation.

What are the key risks remaining for Brookside Energy after the Suttles Pad drilling is complete?

With drilling finished, the primary remaining risks are in the completion and stimulation phase — including hydraulic fracturing execution, surface infrastructure connection, and the transition to first production — none of which have disclosed timelines or cost estimates in the current announcement.

William Hadrian
By William Hadrian
Partnerships Director
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