The US dollar is up 0.7% to 96.05, nearly its highest level this month, following inflation data that showed consumer prices rose more than expected in April. West Texas Intermediate crude oil prices were down as much as 1.7% to fall back below $60 a barrel. Germany's finance minister Wolfgang Schaeuble said Greece might need a 'parallel currency' if it cannot meet its debt obligations. However, this report did little to shake markets.