Crude Oil Pushes higher

Oil prices continued to climb in Asian trading hours, although slipping from their best levels, as world powers worked on a tougher UN resolution to curb Iran's nuclear program Cold weather in the northern hemisphere and tightening supplies are also helping drive prices higher.

The front-month April Nymex contract was last up 10 cents on the day at $61.49, having touched an early high at $61.63.