The yen touched the lowest level in a week against the dollar after the Bank of Japan maintained unprecedented monetary stimulus as the U.S. Federal Reserve moved toward raising borrowing costs for the first time since 2006.
Brent rose for the first time in six days amid speculation about the price level that will force some producers to curb investment and limit future supply growth. West Texas Intermediate advanced in New York.
OPEC's decision to cede no ground to rival producers underscored the price war in the crude market and the challenge to U.S. shale drillers. The 12-nation group abandoned its role as a swing producer, ignoring the steepest slump in oil prices since the global recession to keep its output target unchanged.
The euro fell to a two-year low as European Central Bank President Mario Draghi deepened his commitment to a stimulus program and signaled policy makers are ready to implement additional measures if needed.