The Group’s operations require concessions, due to their importance to the public interest.

As at 31 December 2022  and as at 31 December 2021 the Group had no liabilities related to concession services in scope of IFRIC 12 – Service Concession Arrangements.
Concession fees, incurred for the concessions held to conduct business, including obtained in accordance with the provisions of the Energy Law and the executive regulations issued on the basis of this Act, are recognised in operating expenses as Taxes and fees. Expenses for concessions resulting from the geological and mining law, in particular the acquired concessions for exploration and recognition of crude oil and natural gas, are capitalized under property, plant and equipment as part of the outlays related to the exploration and extraction of mineral resources.