OREANDA-NEWS. HRT Participates em Petróleo S.A. (the "Company" or "HRT") (BM&FBOVESPA: HRTP3, TSX-V: HRP), announces that further to the meeting of the Company's Board of Directors held on May 13, 2014, the shareholders of HRT are invited to attend the Company's Special Shareholders' Meeting (the "Meeting") to be held, upon first call, on June 13, 2014, and if applicable, upon second call on June 24, 2014, to vote, among other things, for the reverse split of the Company's common shares (the "Common Shares") on the basis of 1 (one) post-reverse split Common Share for each 30 (thirty) pre-reverse split Common Shares, pursuant to Article 12 of Law 6.404/76, which also includes the reverse split of the Company's Global Depositary Shares ("GDSs") on the basis of 1 (one) post-reverse split GDS for each pre-reverse split 30 (thirty) GDSs, maintaining the ratio between the Common Shares and the GDSs currently in force of 2 (two) GDSs for each Common Share.

GDS holders are hereby informed that the Management Information Circular and Voting Instruction Form mailed to them in connection with the Meeting set forth an incorrect reverse split ratio for the GDSs of 60 (sixty) to 1 (one) and are hereby advised of the accurate reverse split ratio for the GDSs of 30 (thirty) to 1 (one). Revised Meeting materials which reflect the accurate reverse split ratio for the GDSs will be filed on SEDAR and on the Company's website. The submission of completed Voting Instruction Forms received by mail and referring to the incorrect GDS reverse split ratio will be accepted by the Company as valid voting instructions for the accurate GDS reverse split ratio of 30 (thirty) to 1 (one).