Petrom’s exploration rights on the perimeters were due to expire on September 2011. ANRM didn’t say were the perimeters were located.

Petrom is 51.01%-owned by Austrian group OMV. The Economy Ministry holds a 20.63% stake in the company, while investment fund Fondul Proprietatea (FP.RO) owns 20.11%.

At around 12:50 local time, Petrom traded down 2.82% at RON0.31 a share in Bucharest, amid a declining market. (EUR1=RON4.2567)