(ADPnews) - Dec 14, 2010 - Brazil's federal oil and gas giant Petrobras (SAO:PETR3; NYSE:PBR) has made a BRL 3 billion (USD 1.751bn/EUR 1.324bn) offer for 40% in ETH Bioenergia, the biofuel producing arm of Brazilian industrial conglomerate Odebrecht, local daily Folha reported on Friday.