May 30 (SeeNews) - Romania's top oil and gas group OMV Petrom [BSE:SNP] and its partner in a licence for a gas field in the Romanian sector of the Black Sea, U.S.-based Exxon, have recently signed an agreement according to which the natural gas produced from that field would be transported via the pipelines of Romania's Transgaz [BSE:TGN], minister delegate for energy Razvan Nicolescu said.