Australis Oil & Gas Targets Willson 1H Spud in Q4 2026

Australis Oil & Gas Enters Execution Phase as Carry Program Drilling Targets Q4 2026

Australis Oil & Gas Limited (ASX: ATS) used its First Half 2026 Financial Report to show a business in reset mode, with legacy production now far less important than the next stage of drilling in the Tuscaloosa Marine Shale (TMS). The half-year numbers were weaker on revenue and earnings, but the report also confirmed several operational milestones that shift attention firmly to the company's funded development program, including a granted permit for the Willson 1H and a targeted Q4 2026 spud date, subject to rig availability.

According to the half-year report, Australis ended the period with US$11.2 million in cash and no debt, while retaining exposure to a US$46.25 million Carry Program funded by its Development Partner. For investors, that combination matters because it reduces the company's direct capital burden at a time when operational progress in the TMS is becoming the main value driver.

A Half-Year Shaped by Restructuring Rather Than Production

The financial result for the six months ended 30 June 2026 looks materially different from the prior corresponding period, and the report makes clear this was the intended outcome of the transactions completed at the end of 2025.

Australis closed two related deals in late 2025. The first was the Development Transaction, which brought in a US-listed independent oil and gas company as Development Partner. The second was the Financing Transaction, under which Australis sold 90% of its working interest in producing TMS wells to an affiliate of EQV Group for US$16.9 million before closing adjustments.

That asset sale allowed the company to fully repay all outstanding Macquarie Bank debt and close out its remaining hedge positions. The result is a smaller producing base but a stronger balance sheet and a funded pathway toward new drilling.

The impact on half-year financials was direct.

The fall in sales revenue from US$7.7 million to US$0.5 million largely reflects the reduced ownership in producing wells following the Financing Transaction. In that context, lower production volumes were not an operational surprise but a structural consequence of the company's new strategy.

Australis reported that EQV was operator of its average approximately 10% working interest in 31 wells in the TMS during the period. The company also retained an average approximately 1% working interest in 17 non-operated wells.

There was also a one-off accounting effect. According to the report, revenue included a non-recurring prior period adjustment of US$0.19 million related to ownership changes identified when two wells reached payout, covering activity from 2014 to 2025. Excluding that item, the underlying period revenue was modestly higher than the reported figure suggests.

A bright spot was pricing. Australis achieved an average realised oil price of US$85 per barrel, excluding hedge losses and the prior period adjustment, which was 20% higher than the first half of 2025.

Why the Carry Program Matters

For many investors, the central issue in the half-year update is not current production but the economics of the Carry Program.

In simple terms, a carry arrangement means one party funds agreed development spending on behalf of another. In the Australis structure, the Development Partner funds Australis's share of certain TMS development costs, allowing Australis to keep exposure to drilling outcomes without having to contribute that capital itself.

The report describes the Carry Program as a US$46.25 million carried TMS development work program, under which the Development Partner will carry Australis for a 20% working interest.

That has several practical implications:

• Australis can participate in new well activity without raising equity specifically for those carried costs.
• The company avoids adding debt to fund its share of the early development program.
• Shareholders retain exposure to drilling success across a meaningful acreage position.

This type of structure can be particularly important in onshore US oil development, where drilling programs can require significant upfront capital before new production and reserves are reflected in financial results.

What Is a Working Interest?

Key concept: A working interest (WI) is the company's share of a well or lease before royalties are deducted. A net revenue interest (NRI) is the share remaining after royalties and similar burdens are taken out. For investors comparing production exposure to cash flow exposure, this distinction matters considerably.

Furthermore, Australis also has the benefit of an Area of Mutual Interest (AMI) with the Development Partner. According to the report, this gives the company the right to participate at 20% working interest in any new leases taken within the agreed TMS core area.

Willson 1H Is Now the Key Operational Catalyst

The most important operational development in the half-year report was progress on the Willson 1H, the Initial Test Well under the Carry Program.

Several milestones were outlined:

1. The permit for the Willson 1H has been granted.
2. After the reporting date, Australis received notification from the Development Partner to proceed with drilling and completing the well.
3. The company is working to secure a Q4 2026 spud date, with timing dependent on rig availability.
4. Australis will be the designated operator of the Willson 1H.
5. The company said it has retained the operational staffing levels and contracted technical expertise needed for that role.
6. The permit application process has begun for the Mathieu 1H, the second Carried Well.
7. Leasing has started under the carried US$1 million Initial Leasing Program, as well as within permitted or planned units.

This matters because the report shows a move from transaction completion and planning into execution. While the company had already repositioned its balance sheet in late 2025, the market is likely to focus more closely on whether that repositioning now leads to actual well activity.

Management commentary: "The permit for the Initial Test Well under the Carry Program, the Willson 1H, has been granted and work has commenced on securing a spud date during Q4 2026," the company stated in the half-year report.

Being operator of the Initial Test Well is also relevant. It indicates Australis remains more than a passive minority interest holder in the drilling program and continues to maintain technical and operational capability in the TMS.

Understanding Reserves, Resources, and the TMS

The half-year report refers to both reserves and contingent resources, which are often misunderstood by non-specialist investors.

What Are Reserves?

Reserves are volumes of oil or gas that are considered commercially recoverable under defined conditions. They are usually grouped into categories such as 1P, 2P, and 3P:

• 1P means proved reserves.
• 2P means proved plus probable reserves.
• 3P means proved plus probable plus possible reserves.

What Are Contingent Resources?

Contingent resources are different. These are estimated volumes that may be recoverable, but they still depend on something further happening before they can be classified as reserves. That "something" is often an approved development plan, more drilling, or better commercial definition.

In Australis's case, the report states that its contingent oil resource is contingent on a qualifying development program. That is why the Carry Program is so important. If drilling and development progress, some of those volumes may later be reassessed into reserve categories, subject to the required technical and commercial criteria.

The Tuscaloosa Marine Shale itself is an onshore oil-producing formation in Louisiana and Mississippi. Australis describes its acreage as being within the production-delineated core of the play. In practical terms, that means the land position is located in an area that has already shown oil production history, which helps frame the geological basis for further drilling.

Balance Sheet and Cost Base Remain Closely Watched

At 30 June 2026, Australis reported the following:

The cash balance fell by roughly US$3.0 million during the half, mainly due to operating expenses. The report shows net cash outflow from operating activities of US$3.17 million, with payments to suppliers and employees of US$4.59 million.

Corporate costs were a major contributor to the weaker earnings result. Australis reported US$2.5 million in administrative expenses during the half, which largely explains the negative Adjusted EBITDA of US$2.6 million.

That spending should be viewed in context. The company has chosen to retain the staffing and technical capability needed to operate the Willson 1H. Investors will likely assess the current cost base against expected timing of drilling activity and whether the retained operating capability improves execution readiness.

The report also noted US$138,000 in transition services fees from EQV during the first quarter of 2026, reflecting Australis's role in providing operator transition services after the Financing Transaction. In addition, four workovers were completed during the reporting period within budget.

The Resource Base Remains Central to the Investment Case

According to the report, Australis holds approximately 47,300 net acres, with 84% held by production (HBP), in the TMS core. "Held by production" means existing production helps keep the leases in force, reducing the risk of losing acreage through lease expiry.

Independent estimates by Ryder Scott, effective 31 December 2025, highlighted the scale of the company's position.

Australis has previously highlighted a rounded 2P + 2C total of about 62 million barrels on a pre-farmout basis. That figure combines existing developed reserves with the most-likely estimate of contingent resource.

The distinction is important. The producing reserve base is currently small, however the contingent resource base is much larger. That leaves the valuation debate centred on whether the Carry Program can help move more of the undeveloped inventory toward reserve status over time.

The report also states that Australis retains approximately 160 net future drilling locations, giving the company a potentially long runway if development activity expands beyond the first carried wells.

What Investors May Watch Next

The half-year report points to a relatively clear sequence of near-term milestones:

For ASX investors following Australis Oil & Gas, the key issue is whether the company's 2025 restructuring now converts into operational evidence in 2026. The half-year report suggests that transition is well underway.

The investment case has shifted considerably. Australis is no longer primarily a small US oil producer seeking to maximise near-term production cash flow. According to the company's half-year update, it is now a debt-free TMS participant with cash on hand, a carried development pathway, and a near-term drilling catalyst in Willson 1H.

If the planned well is spudded in Q4 2026 and the broader carried program continues to progress, the market will have more concrete data to assess the scale and commercial relevance of the company's acreage position. Until then, the half-year report frames Australis as a company moving from balance sheet repair into operational execution.

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