Approved Article With Interlinks

The Crisafulli Government has awarded petroleum and gas exploration acreage in Queensland’s Taroom Trough to Shell QGC Pty Limited, a partnership between Denison Gas (Queensland) Pty Ltd and OGT Energy Pty Ltd, and a joint venture led by Omega TN Pty Ltd that includes Beach Energy Limited. It is the most significant new acreage allocation the trough has seen in this exploration cycle.

The timing matters. The east coast faces a documented near-term gas supply shortfall, the Taroom Trough already carries multi-TCF resource estimates from operators such as Elixir Energy and Omega, and these awards bring a major international operator alongside smaller domestically focused players into the same basin. Critically, these are exploration-stage blocks, not producing assets, so the story is about the development activity likely to follow and what the operator commitments signal.

Here is a company-by-company breakdown of who secured which acreage, what each award likely means for future development, and what investors and energy market watchers should realistically expect from these blocks in the years ahead.

Who secured the Taroom Trough blocks, and how much ground do they cover?

The government awarded three clearly documented blocks in the round announced on 23-24 September 2026, with a fourth Taroom Trough tender area referenced in the media release but not detailed in publicly accessible sources at time of publication.

The largest parcel went to a joint venture. PLR2026-1-10, covering approximately 1,138 km², was awarded to a partnership of Omega TN Pty Ltd (45%, operator), Tri-Star Stonecroft Pty Ltd (30%), and Beach Energy Queensland Pty Ltd (25%). Close behind, PLR2026-1-8, at roughly 1,069 km², went jointly to Denison Gas (Queensland) Pty Ltd and OGT Energy Pty Ltd.

Then there is Shell. PLR2026-1-9 covers just 411 km², a fraction of the other two parcels, and it went to Shell QGC Pty Limited on its own.

For Omega, the PLR2026-1-10 award is not a standalone bet. According to the company’s ASX disclosure, the block lifts its operated Taroom Trough position by 63%, from 1,809 km² to 2,947 km², and brings its total operated footprint across the basin to roughly 5,041 km².

The concentration of established names across three distinct blocks tells you the Taroom Trough is no longer a speculative fringe play. It is a basin being actively positioned by serious operators for near-term appraisal work, and the acreage each entity now holds fits into a different corporate strategy. These are not interchangeable generic exploration blocks.

What Shell QGC’s commitment signals for domestic gas supply

Shell chose the smallest block in the round, and framed it with precision.

“We look forward to expanding our industry-leading exploration and appraisal activities in the Taroom Trough, which we view as an exciting new domestic market and backfill opportunity.”

That statement came from Krishna Venkatesan, Vice President of Shell QGC (also identified as Head of Shell QGC). The operative word is “backfill.”

Backfill has a specific meaning in the context of QCLNG, Shell’s coal seam gas to LNG operation. As existing coal seam gas fields mature and their output declines, an operator needs fresh upstream gas to maintain both its contractual LNG export volumes and its domestic supply commitments. Backfill is the gas that replaces what is running down.

The east-coast gas supply gap has tightened considerably through 2026, with winter demand events exposing how little buffer exists between contracted LNG export volumes and domestic industrial and household requirements, a structural imbalance that the Taroom Trough awards are partly designed to address.

Shell QGC already holds exploration and appraisal activity in the Taroom Trough, so PLR2026-1-9 expands an existing presence rather than starting a new one. That context reframes the modest 411 km² block size.

A major operator taking a compact parcel and explicitly labelling it backfill points to disciplined resource management, not speculative acreage banking. That distinction matters for how quickly appraisal activity is likely to follow, because backfill acreage sits close to an existing commercial need rather than a distant hypothetical one.

For investors, Shell’s involvement does two things. It anchors credibility for the Taroom Trough as a genuine development target, and a major operator deepening its commitment typically accelerates technical knowledge generation across the basin, which can de-risk adjacent positions held by smaller players such as Omega and Elixir.

Why the Taroom Trough is considered a multi-TCF opportunity

Operators are not competing for this acreage on faith. The geological case is already partly proven, with resource bookings on the books before the new blocks see a single appraisal well.

According to a paper in the APPEA Journal titled “The Permian gas potential of the Taroom Trough, Queensland: new ideas to unlock a multi-TCF play,” the trough is a Permian basin-centred gas play with thick Kianga Formation sandstones and coals. A basin-centred play means gas is held in a large, continuous accumulation across the rock rather than trapped in discrete structures, which changes how it must be appraised and developed.

Three characteristics define why operators view the acreage as prospective:

• A basin-centred gas play with large, continuous accumulations rather than conventional structural traps
• Extensive, over-pressured Permian tight gas sands and coals
• Proximity to the Wallumbilla Gas Hub, a key infrastructure advantage for any domestic supply pathway

“Australia’s first major new oil province in a generation.” That is how Australian Energy Producers, the industry association formerly known as APPEA, has characterised the region’s potential.

Existing resource estimates anchoring the new acreage

The resource figures already disclosed give that characterisation weight, though they belong to existing positions, not the newly awarded blocks.

Elixir Energy (EXR) cites 2C contingent resources of approximately 2.8 Tcf across roughly 500,000 net acres in the western Taroom Trough. Omega reports 2C contingent resources of approximately 1.7 Tcf across its operated position of about 5,041 km².

The distinction here matters for how you read the numbers. 2C contingent resources are volumes that have been discovered but are not yet commercially producible. The newly awarded exploration blocks carry no assigned resources at all; they represent prospective upside that appraisal drilling must first confirm.

The Petroleum Resources Management System sets the internationally recognised classification framework under which 2C contingent resources are defined as discovered volumes that are technically recoverable but not yet commercially producible, a distinction that separates bookable estimates from deliverable supply.

Combined 2C figures already exceeding 4 Tcf across existing Taroom Trough positions tell you this basin has the scale to genuinely move the needle on east-coast gas availability, if appraisal and execution bear it out. That is the qualifier that separates resource potential from resource supply.

What investors should watch for as these blocks move through appraisal

Exploration awards are a starting line, not a supply solution. For basin-centred tight gas plays in Queensland, the path from award to full-field production commonly runs five to ten years or more.

Oil and gas project timelines for basin-centred tight gas plays routinely exceed initial operator estimates because deliverability assumptions made at the exploration stage are revised significantly once multi-well pilots and extended production tests generate real decline-curve data.

The sequence looks like this:

1. Exploration and appraisal drilling to delineate reservoir quality, thickness, and pressure
2. Extended production tests and multi-well pilot projects to gauge deliverability and decline
3. Expansion of contingent resources and independent reserves certification
4. Pre-FEED and FEED work for gathering systems, processing, and pipeline connection
5. Stage-wise development, initially aimed at the domestic east-coast market

Elixir and Omega are the cautionary precedents. Both hold multi-Tcf resource positions in the Taroom Trough, yet both remain in appraisal and early development planning years after their initial acreage awards. Resource estimates and production are separated by a long, capital-intensive gap.

These awards also sit within a wider Queensland push. On 29 January 2026, the government named Santos QNT and Drillsearch Energy as preferred tenderers for Cooper-Eromanga Basin blocks PLR2025-1-1, PLR2025-1-4 and PLR2025-1-5, part of a program the 2025 Queensland Exploration Scorecard describes as opening nine new areas totalling nearly 17,000 km² to address the looming east-coast shortfall.

Not everyone reads that push the same way. Critical commentary, including analysis from IndailyQld, has questioned the commercial viability of new gas projects against global decarbonisation trends, flagging stranded asset risk, community and environmental opposition, and the persistent gap between headline resource estimates and actual production.

Minister for Natural Resources and Mines Dale Last framed the case differently.

“Exploration is the foundational stage from which all future resource projects originate.”

The read for investors is calibration. A five-to-ten year lead time means these blocks will not resolve the near-term supply gap, so the near-term catalyst is not production but the cadence of appraisal well announcements and resource estimate updates. Those milestones will determine whether the acreage graduates from exploration ground to a commercial development candidate.

A pivotal acreage round, with production still years away

Three distinct commercial rationales sit inside this single round. Shell QGC is securing backfill for a maturing LNG operation. The Omega-led joint venture, with Beach Energy alongside, is expanding a footprint in a basin it already operates. Denison Gas and OGT Energy are entering the trough fresh. Different logic, same ground.

Premier David Crisafulli framed the awards as “pivotal moments” intended to propel Queensland into a new phase of resource-driven economic opportunity. Set against a realistic appraisal-first timeline, that ambition is the destination, not the current position. The 2,618 km² awarded across the three documented blocks, alongside a concurrent Bowen Basin coal tender and the parallel Cooper-Eromanga program, is the groundwork.

What separates the Taroom Trough from a single-operator story is the multi-party conviction behind it: a major international operator, a listed junior expanding, and a new entrant all bidding competitively for the same basin. That is a different kind of signal.

The Queensland exploration investment surge that preceded this acreage round attracted capital from operators with very different risk appetites, from majors seeking backfill security to listed juniors pursuing resource certification milestones, a split that is now visible in the composition of the Taroom Trough award list itself.

Watch three things: Shell QGC appraisal well announcements on PLR2026-1-9, Omega’s ASX disclosures on PLR2026-1-10 activity, and Cooper-Eromanga updates from Santos and Drillsearch. Those disclosures will show you how fast the government’s aspiration is translating into activity on the ground.

This article is for informational purposes only and should not be considered financial advice. Investors should conduct their own research and consult with financial professionals before making investment decisions. Past performance does not guarantee future results. Financial projections are subject to market conditions and various risk factors, and forward-looking statements are speculative and subject to change.