Mosonyi is also resigning from the board of directors and will not participate in the operating governance of the company in the future, MOL said.

Mosonyi will be replaced by MOL CFO József Molnár from May 1.

The board said it “highly appreciated” Mosonyi’s “outstanding work” over the past twelve years and asked him to continue to support the company with his experience and industrial knowledge in non-executive positions in the future.

The board will propose to shareholders at an annual general meeting on April 28 electing Mosonyi a member of MOL’s supervisory board.

MOL also announced changes to its executive board based on a review by the board of directors. From May 1, József Simola will be the group’s CFO, Ferenc Horváth will become executive VP of the Downstream division, which includes the Refining and Marketing, Retail and Petrochemicals businesses, Zoltán Áldott will remain executive VP of the Exploration and Production division, and Ábel Galacz will head an integrated Strategy and Corporate Business Development division.

The board will propose to shareholders electing Oszkár Világi a new member of the board of directors.

MOL said Mihály Kupa is resigning from the supervisory board as of April 30, 2011. Kupa has chaired the body since 2002.