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HRT announces the discovery of hydrocarbons in well 1-HRT-8-AM, Block SOL-T-169, in the Solimões Basin
HRT Participações em Petróleo S.A. (the “Company” or “HRT”) (BM&FBOVESPA: HRTP3, TSX-V: HRP) announces that its subsidiary HRT O&G Exploração e Produção de Petróleo Ltda. ("HRT O&G") submitted to the National Agency of Petroleum, Natural Gas and Biofuels (Agência Nacional do Petróleo, Gás Natural e Biocombustíveis - ANP), Notice of Discovery of gas in the well 1-HRT-8-AM.

Spud-in of Well 1-HRT-9-AM
HRT Participações em Petróleo S.A. (the “Company” or “HRT”) (BM&FBOVESPA: HRTP3, TSX-V: HRP) announces that its subsidiary HRT O&G Exploração e Produção de Petróleo Ltda (“HRT O&G”), on June 16, 2012 at 00:00 a.m., spudded the well 1-HRT-9-AM, in the Castanheira prospect (1-HRT-191-03-AM), located in the Block SOL-T-191, in the Solimões Sedimentary Basin, in the Municipality of Carauari-AM.

HRT announces the discovery of hydrocarbons in the well 1-HRT-6-AM, Block SOL-T-170, in the Solimões Basin
HRT Participações em Petróleo S.A. (the "Company" or "HRT") (BM&FBOVESPA: HRTP3, TSX-V: HRP) announces that its subsidiary HRT O&G Exploração e Produção de Petróleo Ltda. ("HRT O&G") submitted to the National Agency of Petroleum, Natural Gas and Biofuels (Agência Nacional do Petróleo, Gás Natural e Biocombustíveis - ANP), Notice of Discovery of oil and gas in the well 1-HRT-6-AM.

HRT concludes drill-stem test in well 1-HRT-5-AM in the Solimões Basin
HRT Participações em Petróleo S.A. (the "Company" or "HRT") (BM&FBOVESPA: HRTP3, TSX-V: HRP) announces that its subsidiary HRT O&G Exploração e Produção de Petróleo Ltda. ("HRT O&G") has concluded the drill-stem test run in the well 1-HRT-5-AM, in the block SOL-T-192 at the Solimões Basin, which is jointly exploring with TNK-Brasil.

ANP approved the transfer of rights and obligations over the blocks held by HRT O&G to TNK-Brasil
HRT Participações em Petróleo S.A. (the “Company” or “HRT”) (BM&FBOVESPA: HRTP3, TSX-V: HRP) announces that the Brazilian National Agency of Petroleum, Natural Gas and Biofuels (Agência Nacional do Petróleo, Gás Natural e Biocombustíveis - ANP) (“ANP”) informed on April 02, 2012 that, in an executive board meeting held on March 28, 2012, it approved the concession rights and obligations transfer of 45% participating interest from HRT O&G Exploração e Produção de Petróleo Ltda (“HRT O&G”) to TNK-Brasil Exploração e Produção de Óleo e Gás Natural Ltda. (‘‘TNK-Brasil’’), related to the 21 blocks located in the Solimões Sedimentary Basin.

HRT commences partnership discussions in relation to world class Namibian exploration assets
HRT Participações em Petróleo S.A. (the ?Company? or ?HRT?) (BM&FBOVESPA: HRTP3, TSX-V: HRP) is pleased to announce it has commenced discussions with leading oil companies to evaluate the feasibility partnership in its world class Namibian exploration acreage.

HRT announces extension of the exploration period in the Namibia Basin blocks
HRT Participações em Petróleo S.A. (“Company” or “HRT”) (BM&FBOVESPA: HRTP3, TSX-V: HRP), announces that the Ministry of Mines and Energy of the Republic of Namibia (“MME”) granted the extension of the initial exploration period for all its blocks, as it can be seen in the table attached:

HRT announces the discovery of hydrocarbons in the well 1-HRT-4-AM, Block SOL-T-194, in the Solimões Sedimentary Basin
HRT Participações em Petróleo S.A. (the “Company” or “HRT”) (BM&FBOVESPA: HRTP3, TSX-V: HRP), announces that its subsidiary HRT O&G Exploração e Produção de Petróleo Ltda. ("HRT O&G") forwarded to the National Agency of Petroleum, Natural Gas and Biofuels (Agência Nacional do Petróleo, Gás Natural e Biocombustíveis – ANP), Notice of Discovery of oil and gas in the well 1-HRT-4-AM.

HRT signs Farm-In with TNK-Brasil for Solimões Blocks
HRT Participações em Petróleo S.A. (the “Company” or “HRT”) (BM&FBOVESPA: HRTP3, TSX-V: HRP), announces that its subsidiary HRT O&G Exploração e Produção de Petróleo Ltda. (“HRT O&G”) and a Brazilian subsidiary of TNK- BP, TNK-Brasil Exploração e Produção de Óleo e Gás Natural Ltda. (“TNK-Brasil”), have signed a Farm-In Agreement relating to the transfer of a 45% interest in concession rights over 21 blocks located in the Sedimentary Basin of Solimões covering an area of approximately 48,500 square kilometers (the “Transfer”).

HRT informs the discovery of hydrocarbons in the well 1-HRT-3-AM, Block SOL-T-168, in the Solimões Sedimentary Basin
Rio de Janeiro, Brazil, September 16, 2011 - HRT Participações em Petróleo S.A. (the “Company” or “HRT”) (BM&FBOVESPA: HRTP3, TSX-V: HRP) informs that its subsidiary, HRT O&G Exploração e Produção de Petróleo Ltda. (“HRT O&G”), forwarded today to the National Petroleum, Natural Gas and Biofuels Agency (Agência Nacional do Petróleo, Gás Natural e Biocombustíveis - ANP), a Notice of Discovery to the effect that gaseous and liquid hydrocarbons have been observed in well 1-HRT-3-AM, located in the Block SOL-T-168, in the Solimões Sedimentary Basin. The well is positioned at 7.5 km northwest of the Municipal District of Carauari, in the State of Amazonas, and was drilled by rig QG-IX (Queiroz Galvão).