OREANDA-NEWS. April 19, 2012. HRT Participacoes em Petroleo S.A. (the "Company" or "HRT") (BM&FBOVESPA: HRTP3, TSX-V: HRP) announces that its subsidiary HRT O&G Exploraccao e Producao de Petroleo 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 Solimoes Basin, which is jointly exploring with TNK-Brasil.

The test was successfully concluded on April 8 and exhibited exceptional flow characteristics through a vertical well, reaching a production of 13.1 million cubic feet (370 thousand cubic meters) of gas per day with choke of 40/64".

"This result met our expectations. The well drilled on a previously untested structure opens up a new gas production trend in the Solimoes Basin. We believe that this structure has a potential flow rate of 70.7 million cubic feet (2 million cubic meters) of natural gas per day when it reaches its development phase." mentioned Milton Franke, Chief Executive Officer of HRT O&G.

The well 1-HRT-5-AM is located in the block SOL-T-192 and is situated 20 km southern of the Jurua Province. HRT O&G holds 55% working interest in this block and TNK-Brasil the remaining 45% interest.

For further information, contact HRT`s Investor Relations Department.