Update on Slovenia Disputes

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11 March 2026

Ascent Resources plc

("Ascent" or the "Company")

Update on Slovenia Disputes

Ascent Resources Plc (LON: AST), the onshore US focused oil and gas company, is pleased to provide a short update on the Company's legacy Slovenian claims, where recent developments continue to reinforce Ascent Slovenia Limited's (ASL) position ahead of expected near‑term decisions.

Domestic Disputes

The Slovenian court has fully rejected Geoenergo's challenge to the jurisdiction of the domestic Arbitration Tribunal which found in ASL's (a wholly owned subsidiary of the Company) favour in relation to ASL's claim for approximately €7.8 million in unpaid hydrocarbon production proceeds plus late interest, as announced on 3 July 2025. The court also noted that no other creditor contests ASL's claim in the Geoenergo insolvency estate. Further court decisions are expected in the coming weeks/months (first in relation to Ascent's court filing for recognition of the arbitral award, and second on Geoenergo's lawsuit for the invalidation of the arbitral award). Recovery remains subject to the conclusion of the administration process.

Also as announced on 30 October 2025, ASL continues to defend claims brought by Petrol Geo d.o.o. against the Joint Venture and remains engaged in seeking an amicable resolution of both parties' respective claims.

Energy Charter Treaty Dispute

The Company is aware of no delays to the ICSID process and continues to expect the Tribunal's award on the merits this month. A further update will be provided in due course.

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