NEW YORK, June 9 (Reuters) - Brent crude futures turned lower and U.S. crude pared gains in volatile trading as the dollar strengthened and the euro weakened after comments from European Central Bank President Jean-Claude Trichet.
Earlier, mixed U.S. economic data had failed to stem bullish sentiment in the market a day after OPEC failed to raise production targets.
ICE Brent July crude
On the New York Mercantile Exchange, July crude