Prospex Energy’s wholly owned subsidiary, PXEN Tatra, has been formally granted the onshore Dunajec block in southern Poland.

The licence is the company’s second award in Poland following the granting of the San licence earlier this month.

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Both the Dunajec and San licences provide Prospex with a 100% working interest in regions with existing gas production and developed infrastructure.

The Dunajec acreage contains a shallow undeveloped oil discovery known as the Mniszów area. It includes a previously identified 13m oil pay encountered at around 600m depth in fractured carbonate formations.

Drilling activity dating back to 1966, including the Mniszów-3 well, demonstrated an oil-saturated interval flowing at 45 barrels per day during testing. Previous studies estimated the original oil in place at around two million barrels.

The area remained undeveloped, in part because of the smaller field size and thinner reservoir compared to neighbouring fields such as Grobla and Pławowice.

Prospex is collecting historical geological and production data from Dunajec and San to inform the design and priorities of future work programmes. The company intends to use modern exploration and development methods to evaluate the resource potential across these areas.

PXEN Tatra now holds the two licences within the Carpathian foredeep, which is known as a significant Polish gas region with multiple producing fields. The company plans to assess opportunities for early development, especially in the shallow oil discovery at Dunajec.

Prospex CEO Tom Reynolds said: “The formal award of Dunajec means that Prospex has been awarded both licences it applied for in Poland which, together with San, provides highly attractive prospectivity.

“Both licences are located within one of Poland’s most prolific gas regions, with Dunajec also presenting near-term development potential through the Mniszow undeveloped oil discovery.”

In November 2025, Prospex Energy submitted a complete environmental impact assessment for five new natural gas wells at the El Romeral concessions to the Ministry for the Ecological Transition and the Demographic Challenge in Madrid, Spain.