Questerre Energy Corporation announces publication of information document for Preferred Shares

Calgary, Alberta -- Questerre Energy Corporation ("Questerre" or the "Company")announced on 22 June 2026 that it had applied for admission to trading of its Series 2 Preferred Shares with ISIN CA 74836K3082 (the "Preferred Shares") on Euronext Growth Oslo, under the ticker code "QGAS".

The Company has prepared an information document in connection with the admission to trading of the Preferred Shares, which is attached to this announcement and will be made available on the Company's website.

The Preferred Shares track the economic performance and value of the Company's Quebec assets, including its significant natural gas discovery in the Quebec Utica shale. The Preferred Shares were issued in January 2026, following the reorganization of the Company's share capital, as approved by shareholders at the Special Meeting held on January 15, 2026.

For further information, please contact: Questerre Energy Corporation Bjorn Inge Tonnessen, Chairman Hans Jacob Holden, Director Jason D'Silva, Chief Financial Officer Tel : +1.403.777.1185 F +1.403.777.1578 | Email: info@questerre.com