Oil prices eased on Tuesday as Hurricane Emily, which had halted most of Mexico's oil production, lost power. U.S. light, sweet crude oil futures dipped 12 cents to $57.20 a barrel, adding to a fall of 77 cents on Monday. London Brent crude slipped four cents to $56.95. "There's a lot of crude available and once the storms subside, there will probably be more. I am short-term bearish though, in the medium to long-term, the market is still bullish," said Tony Nunan, a Tokyo-based manager at Mitsubishi Corp.'s international energy business. Hurricane Emily, which slammed into the Yucatan Peninsula on Monday, halted all oil exports from Mexico, the world's ninth largest producer, and froze most of the nation's oil 3.44 million barrels per day of oil production. Mexico's state oil monopoly Pemex said it would start restoring output on Wednesday and expected to resume full production by Friday. The National Hurricane Center downgraded the hurricane from Category 4 to Category 1. It warned on Tuesday that it could regain strength over the next 24 hours, but forecasters have predicted it would probably steer clear of most U.S. and oil and gas operations in the Gulf of Mexico.