History
A Cooper Basin explorer that moved to Tunisia, Italy and Romania, then rebuilt as an Austrian oil producer and shallow-gas explorer after repeated dry holes and funding strains.
2006-2007: Cooper Basin beginnings
The company, then called AuDAX, started as an explorer in Australia's Cooper Basin, with a 39.9% stake in the PEL-182 permit and gold and nickel assets in Western Australia. Its first well, Emily-1, in January 2006, showed only a little oil in testing. A 16 cent placement that month raised $1.1m. By 2007 the price had fallen to 7 cents. Sarahlyn-1 was dry, but Vanessa-1 found gas in June 2007, when AuDAX held 49.9%. In November it agreed to buy Alpine Oil and Gas, and Dr Wolfgang Zimmer became managing director in December. Jasmine-1 was effectively dry in January 2008.
2008-2010: Tunisia, Sicily and the minerals spin-off
In January 2008 AuDAX placed shares at 30 cents to raise about $5m. It bought the offshore Kerkouane permit in Tunisia, which holds the Dougga gas condensate discovery, and the Pantelleria permit offshore Italy. Both were completed in 2008. In 2009 it bought back partner Kairiki's 30% to return to full ownership. It also signed the Chorbane onshore permit in Tunisia. The Sambuca farm-out to World Energy Research collapsed in December 2009. The company kept funding itself through smaller placements, a A$20m equity facility with Trafalgar Capital and a 2010 rights issue at 15c that raised about $7.23m.
A string of farm-ins in 2010 funded the Lambouka-1 well. The first target proved water-bearing, but deeper zones showed hydrocarbons, and the well was suspended in September 2010. The company sold its Cooper Basin interest for A$1.1m, renamed itself ADX Energy, and listed its minerals as Riedel Resources in January 2011, keeping 42.94%. A December 2010 placement raised $5m at 8.3 cents.
2011-2014: A failed well and a retreat from Tunisia
The Sidi Dhaher-1 well in Chorbane found a 30 m oil column in October 2011, but the test in June 2012 recovered no hydrocarbons. ADX turned to Romania's Parta block, selling half to Austria's RAG in 2012 and seeing the concession ratified that November. Placements fell to 1.7 cents in 2012 and 2013. In December 2013 Gulfsands left Kerkouane, returning ADX to full ownership, and ADX agreed to sell its last 30% of Chorbane to Gulfsands for US$1.75m. Gulfsands then withheld the final US$1.5m, and ADX started legal action. It settled in February 2015 with Gulfsands agreeing to pay.
2015-2018: A new strategy and a Romanian subsidiary
In September 2015 Dr Zimmer was removed as managing director, with Paul Fink becoming CEO and Ian Tchacos Executive Chairman. The new strategy favoured lower-risk appraisal, led by the Nilde oil field in Italy. An independent assessor put its 2C contingent resource (a middle estimate of recoverable oil) at 34 million barrels. Cash was low, with a placement at 0.7 cents in 2016. A 2017 entitlement offer raised $2.025m of the $2.415m sought. ADX sold its Riedel stake for $1.32m. Reabold Resources bought into Danube Petroleum, the new holder of ADX's Parta interest, which diluted ADX to 71%. Italy questioned ADX's financial capability to operate Nilde, and a 2019 suspension of exploration there was a further setback.
2019-2023: Austrian production and Anshof
In 2019 ADX agreed to buy producing Austrian fields from RAG, completed in December for a final Euro 2.26m. The Iecea Mica-1 well in Romania was drilled in 2019 and later flowed gas below expectation. Reabold's further funding cut ADX to 49.2% of Danube. After the acquisition, ADX borrowed through loan notes and a state-backed loan, and raised money by placements at about a cent or less. It won Upper Austria exploration licences, later expanded to 1,022 km2, and workovers lifted output. Anshof-3 was spudded in December 2021 and found oil in January 2022, and it began commercial production in October 2022 at 100 barrels a day. A RISC audit put Anshof 2P reserves (proven plus probable) at 5.2 million barrels of oil equivalent. Farm-ins with Kepis & Pobe, MCF and MND helped fund wells. Anshof-2 found oil near the water contact and was not completed as a producer.
2024-2026: Welchau, shallow gas and Sicily
A A$13.5m placement in May 2024 funded testing and drilling. Welchau-1 found gas shows, but its November 2024 flow test produced mostly mud and water. Testing was suspended from January 2025 by an environmental objection, until a court rejected it in September 2025. The Lichtenberg-1 well was dry, with cost mostly borne by MND. The Anshof-2A sidetrack was producing in December 2024. In October 2025 the Parta licence in Romania lapsed, and the regulator invoiced Euro 4.2m, which ADX disputes. ADX won the Sicily Channel gas permit C.R150.AU, whose prospective gas resource it put at 619 BCF, a figure RISC reviewed in July 2026. It raised money in November 2025 and in March and July 2026. By 28 August 2026, HOCH-1, its first shallow gas well, had flowed water-free gas from several zones, commingled at 3.15 million cubic feet a day. The well was shut in for a pressure build-up test to determine reserves.
Written from the 268 story beats below (2006 to 28 Aug 2026), which come from the company's own announcements and filings.