Key highlights

  • Omega reported that Canyon-4 intersected a 589 m gross oil and gas-bearing sequence with 197 m of aggregate net pay in its 12 October 2026 release.
  • Average porosity in the primary Canyon Sandstone target was 12.1%, compared with 7.4% at Canyon-1.
  • An upgraded resource assessment is targeted by 1Q 2027, and the 2026/27 appraisal program is reported as fully funded.

On 21 October 2026, Omega Oil & Gas Ltd (ASX:OMA) shares were higher by 9.35% at $0.76 during the trading session. Reference points for the session included the S&P/ASX 200 Energy [XEJ] at 11,167.20, up 0.014% or 1.60 points, and the S&P/ASX 200 [XJO] at 8,806.90, down 0.11% or 10.00 points, as of 2:32 pm GMT+11. Brent Crude advanced 0.60% to US$109.48 amid ongoing Middle East tensions that involve Iran, Saudi Arabia and Yemen’s Houthis, and a reported drawdown in US crude inventories pointed to tightening Supply conditions. Omega is an Australian exploration company focused on unlocking oil and gas resources in Queensland’s Taroom Trough.

What Omega Oil & Gas does

Omega Oil & Gas Limited is an exploration and appraisal company with a sole focus on the Taroom Trough in southern Queensland. Its Canyon play is located on the eastern flank of the Taroom Trough within PCA 342 and 343, where the company holds a 100% interest, and it also holds acreage in ATP 2081. The company is appraising a stacked Permian oil and gas play through a program of vertical wells followed by planned horizontal flow testing.

Canyon-4 results

In an ASX announcement dated 12 October 2026, Omega reported results from Canyon-4, the second vertical well in its fully funded 2026/27 appraisal program. The well intersected a 589 m gross oil and gas-bearing sequence with 197 m of aggregate net pay in true vertical thickness, compared with 526 m and 170 m at Canyon-3 and 433 m and 132 m at Canyon-1.

The company reported that average porosity in the primary Canyon Sandstone target increased from 7.4% at Canyon-1 to 12.1% at Canyon-4. Canyon-4 also intersected the Lower Kianga Formation and the Tinowon Sandstone, which Omega said is equivalent to the gas condensate-bearing interval on the western flank of the Taroom Trough.

Well details and core

Canyon-4 was drilled about 8 km south and 100 m structurally updip from Canyon-3 and is the fourth well in a focus area of roughly 400 km². The top of the Permian was encountered at 3,281 m measured depth, and the well reached a total depth of 4,017 m MD in basement. Omega described it as the first modern well to penetrate the full Permian sequence on the southern Taroom Trough’s eastern flank. The well was deviated 28 degrees to intersect a secondary Tinowon target identified in the Sedgely 3D seismic dataset.

The company recovered 111.2 m of core, a 94.6% recovery, across three key reservoirs. Gas ratios and petrophysical analysis indicate oil throughout most reservoir intervals, with petroliferous odour and fluorescence and associated gas observed bubbling from the core.

Development potential and next steps

Omega stated that the approximately 400 km² area centred on the Canyon wells drilled to date could support around 160 Horizontal Well locations, based on 2,000 m laterals at about 2.5 km spacing. The company is targeting an upgraded oil and gas resource assessment by 1Q 2027. Canyon North-1 is the next well, followed by horizontal flow testing in 1H 2027, and the program will move north into ATP 2081 and evaluate the play’s possible continuation to the south.

The company stated that existing drilling and regional well control indicate continuity of the Canyon Sandstone, and that results from Canyon-4 will be combined with data from the earlier wells and the Sedgely 3D seismic dataset to support the resource upgrade. It also noted that evidence for a significant resource within its acreage has increased with continuing appraisal results.

Why Canyon-4 was drilled

Canyon-4 was designed to test reservoir continuity, quality and hydrocarbon distribution across Omega’s 100% Canyon acreage. The company invested in additional coring and a comprehensive wireline logging program, which it describes as providing a high-quality dataset to support the upgraded resource assessment. The vertical program is intended to test how reservoir quality and hydrocarbon distribution vary across the acreage as the program moves north into ATP 2081.

Sector context

Exploration and appraisal companies report drilling results before any commercial production, and sentiment commonly follows crude prices and drilling outcomes. During the session Brent crude rose 0.60% to US$109.48 per barrel, and the S&P/ASX 200 Energy index was at 11,167.20.

Risks and uncertainties

Wells in the appraisal program provide geological information but do not establish commercial production rates or reserves. Petrophysical indications of oil are subject to flow testing, which is planned for 1H 2027, and the resource upgrade is still a target. Horizontal well locations are theoretical estimates based on assumed lateral lengths and spacing. Costs, approvals, access, weather, funding beyond the 2026/27 program, and Commodity prices can all affect outcomes.

Catalysts to watch

Items referenced include the Canyon North-1 well, the upgraded resource assessment targeted by 1Q 2027, horizontal flow testing in 1H 2027, results from vertical drilling in ATP 2081 and further interpretation of the Canyon-4 core and logging data.

Summing up

Omega’s 12 October 2026 release reported the thickest sequence and highest net pay among its Canyon wells so far, with a resource upgrade and flow testing among the next milestones. Future announcements will report on the next well and testing results.