HRT PARTICIPAÇÕES EM PETRÓLEO S.A. Corporate Taxpayer ID (CNPJ/MF): 10.629.105/0001-68 Company Registry (NIRE): 33.3.0029084-2 PUBLICLY-HELD COMPANY NOTICE OF FAILURE TO CONVENE THE EXTRAORDINARY SHAREHOLDERS’ MEETING CALLED FOR SEPTEMBER 17, 2012, AT 11:00 A.M. In accordance with the call of meeting prepared as set forth in Article 124 of Law 6404/76, through Call Notice published in the Diário Oficial do Estado do Rio de Janeiro and Brasil Econômico newspapers on July 16, 17 and 18, 2012, on September 17, 2012, at 11:00 a.m., the shareholders representing thirteen point eighty-six percent (13.86%) of the Company’s capital stock attended at the headquarters of HRT Participações em Petróleo S.A. (“Company” or “HRTP”), located at Avenida Atlântica, nº 1.130, with additional entrance at Avenida Princesa Isabel, 10º andar (parte), Copacabana, CEP 22021-000, in the city and state of Rio de Janeiro. Thus, due to the absence of the minimum legal quorum required to convene, on a first call, the Extraordinary General Shareholders’ Meeting called in order to deliberate on the following agenda: (i) Approval of the new organization of the Company’s Board of Directors, increasing from 9 (nine) to 11 (eleven) the maximum number of board members, without any amendment regarding the Management’s annual overall compensation approved in the Company’s Annual and Special Shareholders’ Meeting held on April 27, 2012; (ii) Approval of the amendment of Article 17 of the Company’s By-Laws, to reflect the new organization of the Company’s Board of Directors; (iii) To receive and register the resignations presented by certain members of the Board of Directors of the Company; and (iv) Approval of the election of new members for the Board of Directors to fill the vacant positions, in order to complete the maximum number of board members, for a term of office ending on the Company’s Ordinary Shareholders’ Meeting to be held in 2013. Due to lack of required quorum to convene the meeting as provided in Article 135 of Law 6404/76, the management will publish call notices in the aforementioned newspapers opportunely, so that the extraordinary shareholders’ meeting can be held at second call. Rio de Janeiro, September 17, 2012 MARCIO ROCHA MELLO Chairman of the Board of Directors