OREANDA-NEWS. HRT Participates em Petroleo S.A. (the Company or HRT) (BM&FBOVESPA: HRTP3, TSX-V: HRP) announces the issuance of shares, due to the following events:

Under the terms of HRTs First Stock Option Plan (Stock Option Plan n I), approved by the Extraordinary Shareholders Meeting held on May 14, 2010, the Company increased its capital, due to the exercise of stock options by some participants in the amount of BRL 2,964.00 (two thousand, nine hundred sixty four Brazilian Reais), through the issuance of 148,200 (one hundred forty eight thousand and two hundred) new registered, book-entry, common shares with no par value, which were subscribed and fully paid up in national currency and delivered to the participants. Even existing future issuances resulting from the exercise of stock options already granted within the Stock Option Plan n I, said Plan has been closed for future grantings. Note that the shares issued as a result of the aforementioned event will be fully entitled to any dividends and interest on equity eventually declared by the Company.

Additionally, under the terms of the Incentive Plan to Attract and Retain Strategic Collaborators, approved by the Extraordinary Shareholders Meeting held on April 27, 2011, the Company increased its capital, due to the exercise of stock options by some of the participants, within the Retention Plan in the amount of BRL 1,507,939.44 (one million, five hundred and seven thousand, nine hundred and thirty nine Brazilian Reais and forty four cents), through the issuance of 679,252 (six hundred and seventy nine thousand, two hundred fifty two) new registered, book- entry, common shares with no par value, which were subscribed and fully paid up in national currency and delivered to the participants. Note that the shares issued as a result of the aforementioned event will be fully entitled to any dividends and interest on equity eventually declared by the Company.

Finally, under the terms of the Performance Incentive Plan, approved by the Extraordinary Shareholders Meeting held on April 27, 2011, the Company increased its capital, due to the exercise of stock options by some of the participants in the amount of BRL 229,815.66 (two hundred twenty nine thousand, eight hundred and fifteen Brazilian Reais and sixty six cents) through the issuance of 111,561 (one hundred eleven thousand, five hundred sixty one) new registered, book-entry, common shares with no par value, which were subscribed and fully paid up in national currency and delivered to the participants. Note that the shares issued as a result of the aforementioned event will be fully entitled to any dividends and interest on equity eventually declared by the Company.

Including the above-mentioned issuance, the Companys current capital stands at BRL 3,955,319,541.43 (three billion, nine hundred and fifty five million, three hundred and nineteen thousand and five hundred and forty one Brazilian Reais and forty three cents), divided into 296,185,963 (two hundred and ninety six million, one hundred and eighty five thousand and nine hundred and sixty three) common, book-entry shares with no par value. The capital will be duly ratified and Article 5 of the Companys Bylaws will be amended accordingly at a future Extraordinary Shareholders Meeting.