The initial deadline had been set for December 29, but multiple bidders requested an extension.
Thus, bidding will unfold until January 16, 10:00 local time (GMT0800). The bids will be opened on the same day, at 11:00 local time.
The listing offer may be launched in June or September 2012, according to Florin-Laurentiu Vladan, head of the authority in charge with the operation.
The Romgaz listing is expected to be the largest offer seen by the Bucharest bourse so far. Analysts believe the state budget could receive as much as EUR300 million for the Romgaz shares.
The company has a share capital of 38.3 million lei (EUR8.9 million). The Economy Ministry holds an 85% stake, while investment fund Fondul Proprietatea (FP.RO) holds 15%.
Authorities agreed with the IMF to sell 15% stakes in Romgaz, Transelectrica (TEL.RO) and Transgaz (TEL.RO), a least 10% in Hidroelectrica and Nuclearelectrica, 10% in OMV Petrom (SNP.RO), 20% in CFR Marfa and up to 20% of Tarom. (EUR1=RON4.2972)