Stepnoy Leopard Reserves and Resources Evaluation

Nostrum Oil & Gas PLC (LSE: NOG) ("Nostrum", or the "Company" and together with its subsidiaries, the "Group"), an independent mixed-asset energy company with world-class gas processing facilities and export hub in north-west Kazakhstan, is pleased to announce that the full Competent Person's Report (the "SL CPR") on the Stepnoy Leopard fields ("SL Fields") in which Nostrum has an 80% working interest is now available on the Company's website. The SL CPR, an independent third-party evaluation of the reserves and resources of the SL Fields as at 1 January 2024, was prepared by Xodus Group Limited. An executive summary of the SL CPR was published by the Company on 17 July 2024.