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Summary Benchmark oil fell 60 cents to close at $91.96 per barrel.
Oil prices are lower ahead of a weekend meeting where leaders of the worlds biggest economies will look for ways to help Europe resolve its debt crisis.Benchmark oil fell 60 cents to $91.96 per barrel in New York and dropped 32 cents to $107.14 in London.President Barack Obama will convene the session of G8 leaders outside Washington. Concerns persist about Europes financial problems and the impact they may have on the global economy. A big question is whether political turmoil in Greece could force it out of the group of countries that use the euro.
