The closing date of the share register and the record date in the Invitation letter to the AGM to be held at 10.00 a.m. on 26 April, 2007 (Thursday) were incorrect.

MOL Hungarian Oil and Gas Public Limited Company (Budapest H-1117, Október huszonharmadika u. 18., Capital Court as Court of Registration (Budapest) Tr.: 01-10-041683) informs its shareholders, that the closing date of the share register and the record date in the Invitation letter to the AGM to be held at 10.00 a.m. on 26 April, 2007 (Thursday) were incorrect.

As 21 April 2007 (Saturday) is a working day, only those shareholders can participate and vote at the general meeting who will be registered in the share register at least seven (7) business days prior to the date of the general meeting by 18 April, 2007 as the latest. Upon instruction of the Board of Directors KELER Zrt. shall close the share register at 03.00 p.m. on 18 April, 2007, and no application for registration shall be accepted by 27 April, 2007. Record date of shareholder identification shall be 17 April, 2007.