How Brookside Energy’s SWISH Wells Boosted Proved Reserves by 7% in 2025
Brookside Energy has reported a modest increase in its total proved plus probable reserves to 12.52 million barrels of oil equivalent, driven by strong performance from its operated wells in Oklahoma’s SWISH play. The company’s proved developed producing reserves also rose by 5%, underscoring steady operational progress.
- Total proved plus probable (2P) reserves reach 12.52 MMBOE
- Proved developed producing (PDP) reserves increase ~5% to 2.80 MMBOE
- Total proved (1P) reserves grow ~7% to 5.33 MMBOE
- Reserve replacement exceeds production across all categories
- Reserves concentrated in Anadarko Basin’s SWISH play
Brookside’s Reserve Growth Reflects Operational Strength
Brookside Energy Limited has released its independently certified year-end 2025 reserves report, revealing a modest but meaningful increase in its total proved plus probable (2P) net reserves to 12.52 million barrels of oil equivalent (MMBOE). This growth is underpinned by the strong performance of the company’s operated horizontal wells within the SWISH play of the Anadarko Basin in Oklahoma.
The company’s proved developed producing (PDP) reserves rose by approximately 5% to 2.80 MMBOE, while total proved (1P) reserves increased by about 7% to 5.33 MMBOE. These gains were achieved despite ongoing production, with reserve replacement rates exceeding 100% across all categories, 121.7% on a PDP basis, 152.6% on a 1P basis, and 126.2% on a 2P basis, highlighting Brookside’s ability to sustain and grow its resource base.
Focus on SWISH Play and Well Performance
The reserves are primarily concentrated in the Sycamore and Woodford formations, key targets within the SWISH play, a prolific hydrocarbon region in the Anadarko Basin. Brookside’s operated horizontal wells continue to deliver consistent results, converting drilling successes into booked reserves and supporting a stable long-term reserves inventory.
Managing Director and CEO David Prentice emphasised the disciplined approach driving these outcomes: "Our operated wells continue to perform as expected and that performance is now translating into higher proved reserves. We increased our producing reserves while growing our overall reserve base modestly to 12.52 MMBOE. That outcome reflects both the quality of the rock and the disciplined way we are developing it."
A Long Runway for Future Development
Brookside retains a substantial inventory of future development locations across its SWISH acreage, providing a significant runway to convert these opportunities into producing reserves over time. This inventory underpins the company’s strategy to steadily grow production and cash flow, leveraging its strong operational base and focused capital allocation.
The reserves certification was conducted by independent petroleum engineering consultants Haas & Cobb, ensuring rigorous assessment standards consistent with industry best practices. The report also notes that reserve estimates are forward-looking and subject to change as new data and operational insights emerge.
Bottom Line?
Brookside’s steady reserve growth and robust replacement rates position it well for sustained production expansion in the Anadarko Basin.
Questions in the middle?
- How will Brookside capitalise on its substantial inventory of future development locations?
- What are the company’s plans for capital expenditure to support ongoing reserve conversion?
- How might commodity price fluctuations impact the economic viability of the SWISH play reserves?
