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Petrobras, CNOOC, Petrochina big winners in Brazil’s PPSA oil auction
RIO DE JANEIRO, (Reuters) – Petro-bras as well as Chinese oil firms CNOOC and Petrochina were the winners of a Wednesday oil auction that is expected to bring record revenue for Brazil’s Pre-Sal Petroleo (PPSA). State-run oil firm Petrobras won two bids, …