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LIMA, Aug 4 (Reuters) - None of the three oil companies that had signaled interest in Peru's biggest oil block ended up presenting a bid during an auction on Tuesday, state energy regulator Perupetro said.
Current operator Pluspetrol, Perenco Ltd and Pacific Rubiales Energy had all expressed interest in the block last month. (Reporting By Mitra Taj; Editing by Chris Reese)