Tamboran Resources Corporation has set a new production benchmark in the Beetaloo Basin, with its Shenandoah South 2H sidetrack (SS-2H ST1) well delivering an average 90-day initial production (IP90) flow rate of 6.7 million cubic feet per day (MMcf/d) from a 5,483-foot stimulated horizontal section in the Mid Velkerri B Shale.
In a rare outcome for shale gas production, the well’s flow rates increased by approximately 2 per cent over the last 30 days of testing — without any downhole intervention — while operating at a steady 44/64” choke.
At the end of the 90-day period, the SS-2H ST1 well was flowing at 6.5 MMcf/d with a wellhead pressure of around 700 psi, representing only a 3 per cent decline from the end of Day 60.
The well has now been suspended ahead of gas sales to the Northern Territory government, scheduled to commence in mid‑2026 via the Sturt Plateau Compression Facility (SPCF), subject to weather conditions and final stakeholder approvals.
Tamboran Chairman and Interim CEO, Richard Stoneburner, described the result as exceptional.
“The performance and character of the SS-2H ST1 well is unique compared to hundreds of wells I have seen in my career,” said Stoneburner.
“With flow rates increasing over the last 30 days to 6.5 MMcf/d, without downhole intervention or adjustments to choke, I believe we are seeing the enhanced matrix connectivity achieved during the stimulation program.
“The SS-2H ST1 well represents another encouraging data point as we better understand the Velkerri B Shale’s ultimate performance and recovery.”
Stoneburner said the SS‑2H ST1 well was still gradually cleaning up at the end of the 90‑day test, indicating it may have been able to maintain its production rate beyond the trial period.
He said the results would help guide preparations to stimulate Tamboran’s first 10,000‑foot horizontal section in the Shenandoah South area before year‑end.
He added that, together with the strong SS‑1H output recorded in 2024, the data underscored the substantial potential of Tamboran’s large acreage around Shenandoah South, where the company is working on a farm‑down of about 400,000 acres for future development to meet an expected gas shortfall on the East Coast.
Tamboran’s three-well Shenandoah South 2025 drilling campaign is also progressing, with the intermediate sections of the SS-5H and SS-6H wells successfully drilled.
The drilling rig is currently completing the intermediate section of the SS-4H well — part of the first multi-well batch drilling program ever undertaken in the Beetaloo Basin.
Once the SS-4H’s intermediate section is completed, the campaign will move to drilling the 10,000-foot horizontal sections for all three wells.
