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Oil prices rose in volatile trade on Thursday, as data showing tight U.S. By the end of the session, oil prices had given up much of those gains, but remained higher on the day. Brent crude for December delivery (LCOc2) rose $1.70 to settle at $85.82 a barrel, after slipping to a four year low at $82.93. Oil prices have slid precipitously since June as ample global supply outpaces weak demand.