PRIO – June 2025 Operational Data

July 3, 2025 – 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 June.

Key:

(1) In the Frade field, the gas compression system was fully repaired, and production was normalized.

(2) In the Polvo and Tubarão Martelo cluster, production was still affected by the shutdown of the wells TBMT-10H and TBMT-4H due to the failure of the Submerged Centrifugal Pump. However, with IBAMA’s approval for workovers, both wells resumed production within the month. (3) As provided for in the JOA (Joint Operating Agreement), in June, Repsol Sinopec Brasil S.A. sold 504 thousand barrels relating to its share of the field’s production.