RIO DE JANEIRO, May 14 (Reuters) - Brazil's state-run oilcompany Petrobras, Portugal's Galp andBrazil's OGX won Brazilian onshore oil and gasexploration blocks in a frontier region of Brazil's ParnaibaBasin at an auction on Tuesday conducted by oil regulator ANP.
They agreed to pay a combined 61.3 million reais ($30million) for the rights to the blocks in Brazil's northeast. Theblocks are near the same basin where OGX bought rights in 2007and is now producing natural gas.