Highlights

  • Diona-1 stimulation and completion operations have been completed across the identified Permian net gas pay.
  • The well is currently free-flowing gas, condensate and residual stimulation fluids to surface.
  • Flowing tubing head pressure (FTHP) recorded at 735 psig on a 20/64th choke.
  • Multi-rate and pressure monitoring testing will commence once gas and condensate dominate the stream.
  • Diona-1 is located less than 100 metres from the Waggamba to Silver Springs pipeline.
  • EXR holds a 49% interest in the Diona sub-block, with Xstate Resources Limited holding 51%.
  • EXR was fully carried by XST for the drilling phase under the 2025 transaction.

Elixir Energy Limited (ASX:EXR) has provided an operational update on the Diona-1 exploration well in Queensland’s Surat-Bowen Basin, confirming that stimulation and completion operations have been successfully completed and that the well has commenced flow-back and clean-up operations.

According to the update, Diona-1 is currently free-flowing gas, condensate and stimulation fluids back to surface following the opening of the well on 10 May 2026. The well recorded a flowing tubing head pressure of 735 psig through a 20/64th choke during the clean-up phase.

At this stage, the production stream is bypassing the well-testing measurement package while residual stimulation and completion fluids continue to unload from the well. Once gas and condensate become the dominant production stream, the well will transition into a formal multi-rate and pressure monitoring testing program.

The update stops short of providing stabilised gas flow rates, condensate Yield, gas composition data, reserve estimates or commercial production guidance. However, the Company highlighted the strategic location of Diona-1, with the well situated less than 100 metres from the Waggamba to Silver Springs pipeline that ultimately connects into the Wallumbilla Gas Hub on Australia’s east coast.

What Was Announced

Elixir Energy confirmed that stimulation and completion operations at Diona-1 have now been completed across the identified Permian net gas pay interval.

The well has been completed using 2-3/8 inch tubing with sliding sleeve completions, and the workover rig together with ancillary equipment is now being demobilised from site. Meanwhile, the well-testing package has been rigged up in preparation for the next operational phase.

Diona-1 was opened late on Sunday 10 May 2026 and has since commenced free-flowing production to surface. During this clean-up phase, the well is producing gas and condensate alongside the residual stimulation and completion fluids.

The Company stated that the current flow stream is bypassing measurement equipment while the clean-up process continues. Once the remaining fluids are displaced and gas and condensate dominate production, the stream will be diverted through the testing package for multi-rate and pressure monitoring analysis.

Elixir also reiterated the ownership structure of the ATP2077 Diona sub-block joint venture. EXR holds a 49% working interest while Xstate Resources Limited holds 51%. Under the 2025 transaction structure, XST fully carried Elixir through the drilling phase for Diona-1.

Why the Announcement Matters

For exploration-stage gas companies, the transition from drilling and stimulation into actual hydrocarbon flow-back is an important technical milestone.

Until Hydrocarbons physically reach surface, the commercial viability of a gas well remains theoretical. The confirmation that Diona-1 is already flowing gas and condensate during the clean-up phase therefore provides an early operational indication that the targeted Permian gas interval is capable of hydrocarbon production.

However, the significance of the update should be interpreted carefully. The current clean-up phase is not equivalent to a stabilised commercial flow test. During this period, stimulation and completion fluids are still being unloaded from the wellbore, and the production stream is not yet passing through formal measurement equipment.

As a result, the 735 psig flowing tubing head pressure should not be interpreted as a direct indicator of long-term commercial performance. The more meaningful data will emerge during the upcoming multi-rate and pressure monitoring phase, which is designed to assess stabilised flow rates, reservoir pressure behaviour, deliverability and longer-term productivity potential.

The update is also strategically important because of Diona-1’s proximity to existing infrastructure. The Waggamba to Silver Springs pipeline lies less than 100 metres from the well pad, with an above-ground tie-in point located roughly one kilometre away.

That infrastructure ultimately links into the Silver Springs Gas Plant and then the Wallumbilla Gas Hub, which remains the pricing and trading centre for eastern Australian gas markets. If future test results support commercial development, the nearby infrastructure could potentially shorten development timelines compared with more remote greenfield gas discoveries.

Strategic Context

Diona-1 sits within Elixir Energy’s broader Taroom Trough strategy in Queensland’s Bowen Basin region.

The Company has previously disclosed approximately 3.5 TCF of independently certified 2C Contingent Gas Resources across its wider acreage position and has positioned itself as one of the largest acreage holders in the Taroom Trough.

The basin is strategically attractive due to its proximity to east-coast gas infrastructure, LNG export facilities on Curtis Island and established domestic gas markets.

Within that broader portfolio, Diona-1 represents both a standalone appraisal opportunity and a broader technical data point for the Permian-aged gas system across the basin.

Importantly, the carried drilling arrangement with Xstate Resources Limited reduced Elixir’s near-term Capital exposure to the well. A successful outcome at Diona-1 could therefore provide both direct commercial optionality and broader de-risking implications for surrounding acreage.

The well’s close proximity to pipeline infrastructure is also relatively unusual for an exploration-stage project. In principle, this could support a faster commercialisation pathway if future testing demonstrates stable and commercially attractive gas flow rates.

At the same time, both the technical and commercial questions remain only partially answered until the next phase of testing is completed.

Market Interpretation

A positive interpretation of the update would focus on the fact that Diona-1 has now progressed through stimulation, completion and initial flow-back without operational complications being disclosed.

The presence of both gas and condensate flowing during the clean-up phase may be viewed as an encouraging operational signal, particularly given the infrastructure advantage associated with the nearby Wallumbilla-connected pipeline network.

Investors may also view the carried drilling structure favourably, as it limits Elixir’s direct exposure to the initial drilling costs while still preserving meaningful Equity participation in any potential future development.

A more neutral interpretation would recognise that the update does not yet provide the quantitative data needed to assess commerciality.

No stabilised flow rate, condensate ratio, gas specification, reserve estimate or development Economics have been disclosed. Without those metrics, investors are not yet in a position to properly assess the economic significance of the well.

A more cautious interpretation would note that early clean-up flow can sometimes overstate long-term performance expectations. Flow rates and pressure behaviour can change materially as stimulation fluids clear, water cuts evolve and the reservoir stabilises under sustained testing conditions.

Accordingly, the upcoming multi-rate and pressure monitoring phase will likely represent the more decisive operational milestone for the market.

Risks and Missing Information

Several important uncertainties remain unresolved following the update.

Operationally, the well has not yet demonstrated stable commercial production. Reservoir behaviour during clean-up can differ materially from longer-term performance once sustained testing begins.

The Company has also not disclosed several key reservoir and completion parameters, including permeability, porosity, completion interval length, condensate yield, gas composition or long-term decline assumptions.

Commercial risks also remain open. Although the nearby pipeline infrastructure is strategically attractive, no tie-in agreement, gas sales arrangement or pipeline access terms have been announced.

Future commercialisation would still depend on access agreements, gas specification requirements, potential processing needs and broader infrastructure coordination.

The joint venture structure introduces another layer of consideration. EXR holds 49% of the Diona sub-block while Xstate Resources Limited holds 51%, meaning XST retains majority ownership within the project. The update also does not indicate whether any future development costs would continue to be carried.

Commodity price exposure also remains relevant. East-coast Australian gas pricing continues to be influenced by LNG export Demand, domestic Supply constraints, policy intervention and seasonal market dynamics.

Finally, the announcement itself remains operational rather than economic in nature. No reserve booking, development decision, production timeline or Revenue guidance has been disclosed at this stage.

Investor Takeaway

This update represents a constructive operational milestone for Elixir Energy Limited as Diona-1 transitions from drilling and completion into the early flow-testing stage.

The fact that gas and condensate are already reaching surface during clean-up operations provides an early indication that the targeted Permian interval is hydrocarbon-bearing, while the proximity to existing east-coast gas infrastructure enhances the strategic relevance of the project.

However, the update remains interim in nature and does not yet establish commerciality.

The most important data points are still to come, including stabilised flow rates, pressure monitoring results, condensate yields, reservoir interpretation and any subsequent statements regarding tie-in economics or development planning.

For investors, the upcoming multi-rate testing results will likely represent the key catalyst in determining whether Diona-1 can progress from an encouraging operational result into a commercially meaningful gas development opportunity.