Dollar Falls, Oil-Exporter Currencies Rise after Saudi Arabia Attacks

The dollar tumbled while safe-haven currencies of oil-producing countries rallied following an attack on Saudi Arabian refining facilities that unsettled global oil supply and intensified Middle East tensions.

Oil prices heaved nearly a fifth at one point following the strikes on two plants, which knocked out more than 5% of global oil supply.

The safe-haven Japanese yen and Swiss franc both remained stronger. The yen rose 0.3% to 107.79 per dollar and the franc upsurged 0.4% to $0.9883.