The safe-haven yen was the currency darling on Wednesday as investors sought its refuge amid political instability in Egypt and Portugal, although encouraging U.S. labor market signs had it paring gains against the dollar.

Japan's currency and the Swiss franc, which is also favored during times of turmoil, were supported by worries about unrest in Egypt. Fears it could destabilize the Middle East and lead to supply disruption pushed oil to a 14-month peak.