Oil prices edged up after early falls on Monday as parts of Asia returned from the Lunar New Year holiday, with Brent futures moving further away from $60 a barrel and U.S. contracts moving towards $51. Brent and U.S. WTI crude futures were helped by cautious optimism that another eurozone crisis over Greek debt had been averted for now by a compromise between Athens and its creditors. Benchmark Brent crude futures were trading at $60.36 a barrel at 0356 GMT, up 14 cents from their last settlement, while U.S. WTI crude was up 10 cents at $50.91 a barrel. U.S.