Oil prices fell on Tuesday on uncertainty over the outcome of a key OPEC meeting this week due to decide on production policy for the next year.
Brent crude oil (LCOc1) was down 50 cents a barrel at $63.34 a barrel by 1000 GMT. U.S. light crude (CLc1) was 50 cents lower at $57.61, after falling 1.4 percent in the last session.
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