ADX Energy unveils bumper oil and gas prospect pipeline in Upper Austria
ADX Energy (ASX: ADX) has significantly upgraded its exploration inventory across 1022 square kilometres of permits in Upper Austria, tabling an impressive portfolio of 28 prospects with a combined mean prospective resource of 579 billion cubic feet (Bcf) of gas and 59 million barrels (MMbbl) of oil.
The beefed-up inventory spans five geological plays backed by proven regional analogues, providing a wealth of opportunities according to the company, as it looks to cement its position as a key domestic energy producer in Europe.
ADX’s near-term shallow gas play is targeting low-cost, low-risk prospects hosting biogenic methane, generated by microbes in Hall Formation sandstones. The model got a shot in the arm recently when HOCH-1 hit eight gas-bearing reservoirs, with four tested zones flowing a combined 3.15 million cubic feet per day. Next in line and fully permitted are GOLD-1, 40km east of HOCH, and SCHOE immediately to the south.
Adding to its growing arsenal of targets, ADX says seismic-derived direct hydrocarbon indicators (DHIs) have revealed three new prospects, SAND, FUCHS and EHRE, packing mean estimates of 1.7, 1.7 and 2.4 Bcf respectively. All sit near infrastructure alongside the company's HASE prospect and in its wholly owned northern Upper Austrian acreage.
ADX recently brought London-listed Empyrean Energy aboard to bankroll 20 per cent of GOLD-1’s drilling, completion and testing costs for a 10 per cent economic interest in the surrounding GOLD Cluster, giving its Austrian drilling campaign fresh financial firepower.
Meanwhile, the junior's near-field oil ambitions centre on Anshof’s producing field and 3000-barrel-per-day processing plant, offering a fast track to oil production. Better structural mapping has more than doubled its PERG prospect’s mean prospective resource from 2.4 to 6.1 MMbbl, sparking strong farm-in interest, while nearby Steingrub has jumped 25 per cent to 1.7 million barrels of oil equivalent (MMBOE). The total play packs a gross mean estimate of 20 MMBOE.
In the near term, ADX exploration activities continue to focus on the potentially extensive, low-risk Shallow Gas Play following up on our successful HOCH-1 well discovery with the GOLD-1 well planned to be drilled in January 2027. ADX Energy CEO Paul Fink
With its shallow-gas drilling campaign gathering momentum, the company is also getting its ducks in a row for a well at PERG later in 2027, with permitting already underway.
Beyond all of its near-term wells, ADX is eyeing bigger, deeper exploration opportunities.
In southern Upper Austria, four gas-condensate prospects in the Sub-Flysch Play, beneath overthrust rock formations, pack a combined gross mean prospective resource of 252 Bcf. Reprocessed three-dimensional seismic data has lifted the veil on the geology, revealing more high-impact targets and potential farm-in partners in 2027.
Further south in the Alpine carbonate belt, the Welchau carbonate play offers an even bigger swing. Drilling at Welchau-1 and the historic Molln-1 gas discovery has indicated oil in the upper levels and gas at depth. The shallower Welchau oil target and the company's Rossberg target - a similar geological structure 6km northwest of Welchau - pack a combined gross mean estimate of 37.3 million barrels of oil.
Some 700m below Welchau's existing well’s casing shoe, Welchau Deep carries gross mean estimates of 387.4 Bcf of gas and 13.6 million barrels of condensate. ADX is advancing studies, seismic interpretation and permitting to deepen the well in late 2027 to chase this monster.
Completing the five-play portfolio is the Molasse Play in western Upper Austria, where seismic mapping and nearby production data have delivered a 25 per cent resource boost to ADX’s BUCH gas prospect, lifting its mean estimate to 9.5Bcf. Two additional moderate-depth targets, BRUNN and ARD, add further upside, as the company gears up for a busy 2027 drilling campaign and potentially more prospects to add to its growing inventory.
ADX’s multi-pronged attack looks well timed, with Europe’s appetite for secure, locally sourced energy adding commercial appeal to its Austrian portfolio. Cash flow and operating experience from Anshof and its Vienna Basin fields give the company a solid launching pad, while existing infrastructure offers a potential shortcut from discovery to production.
By building a diverse inventory of targets, ADX has created a ladder of opportunity. The low-risk shallow gas wells can potentially deliver near-term cash flow, while the larger targets at Welchau and in the Sub-Flysch play offer the kind of scale that could fundamentally reshape the company.
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