Hellenic Petroleum Holdings S.A.

M&A Activity • Nov 6, 2025

Maroussi, 6 November 2025

Farm-In agreement for ExxonMobil's participation in the Block 2 concession block

HELLENiQ ENERGY Holdings S.A. (the "Company") announces that the Company, together with ExxonMobil and Energean, has signed a Farm-In agreement regarding the participation of ExxonMobil in the Block 2 concession, which is located in the northwestern Ionian Sea.

Pursuant to the terms of the agreement, ExxonMobil will acquire a 60% interest in the concession. Energean shall retain a 30% interest, reduced from its original holding of 75%, while the Company shall retain a 10% interest compared with its initial share of 25%. Energean will continue to serve as Operator during the exploration phase. In the event of a hydrocarbon discovery, ExxonMobil will assume operatorship during the development phase. The consortium is expected to make a decision regarding the commencement of drilling activities in the near future.

The completion of the transaction remains subject to applicable government approvals and the fulfillment of customary closing deliverables.