Hungarian oil and gas company MOL is interested in buying a 53.2% stake in Poland’s second-largest refinery Grupa Lotos, Dow Jones reported on Thursday, citing two people familiar with the matter.

Russia’s OAO Gazprom Neft and TNK-BP Holdings, Polish PGNiG, and a few private equity funds are also eyeing the stake, Dow Jones said.

Investors have until April 29 to bid for the stake being offered by Poland’s Treasury Ministry.