BUCHAREST, May 7 (Reuters) - Romania's financial

regulator ASF said on Tuesday it has approved the prospectus for

the initial public offering of Bucharest-based energy group

Premier Energy ( PNRC ), owned by Czech investment firm Emma Capital,

which will run May 8-15 on the Bucharest Stock Exchange.

The sale will carry a price range of 19 lei ($4.11) to 21.5

lei ($4.66) per share, it said.

($1 = 4.6186 lei)