The dollar edged lower on Monday as renewed selling in oil markets drove investors into currencies often deemed less risky investments, such as the euro, Swiss franc and Japanese yen.

Crude oil futures fell 6 percent after Iraq announced record-high oil production, feeding into a heavily oversupplied market, and senior officials with the Organization of the Petroleum Exporting Countries (OPEC) signaled they were unlikely to reduce crude production unless non-OPEC countries did likewise.