PETRÓLEOS DEL PERÚ – PETROPERÚ S.A. Announces Successful Completion of its Consent Solicitation and Effectiveness of the Proposed Amendments to the Indentures governing its outstanding 4.750% Notes Due 2032 (CUSIP No. 716564 AA7 (144A)/P7808B AA5 (REGS) (ISIN No. US716564AA72 (144A)/USP7808BAA54 (REGS)) and 5.625% Notes Due 2047 (CUSIP No. 716564 AB5 (144A)/P7808B AB3 (REGS) (ISIN No. US716564AB55 (144A)/USP7808BAB38 (REGS))