June 4 (Reuters) - Frontera Energy Corp FEC.TO :
* FRONTERA TO OFFER NEW SENIOR NOTES
* FRONTERA ENERGY CORP FEC.TO - INTENDS TO COMMENCE AN OFFERING OF UP TO U.S.$500 MLN PRINCIPAL AMOUNT OF UNSECURED SENIOR NOTES DUE 2023
* FRONTERA ENERGY CORP FEC.TO - PROCEEDS FROM OFFERING WILL BE USED TO REPURCHASE, AT A PREMIUM, U.S.$250 MLN 10.0% SENIOR SECURED NOTES DUE 2021