PRIO Operational Data October 2023

– PRIO S.A. (“Company” or “PRIO”) (B3: PRIO3), following best practices incorporate governance and transparency, informs its preliminary and non-audited Operational Data for the month of October.

Key:

(1) The figures refer to PRIO’s 90% interest in Albacora Leste, assuming production throughout the month. As the acquisition’s closing happened on January 26, 2023, the field contributed proportionally with 5,919 barrels per day during the month of January. (2) The production in Albacora Leste Field was impacted by occasional stoppages for preventive and corrective maintenance on the fire-fighting and power generation systems. All repairs have now been carried out and the field’s current average production is 31 kbpd (net PRIO).