Crude oil for December delivery was down 1.30% or 0.89 to $67.81 a barrel. Elsewhere in commodities trading, Brent oil for delivery in January fell 1.27% or 0.92 to hit $71.64 a barrel, while the December Gold Futures contract fell 0.29% or 7.40 to trade at $2,565.50 a troy ounce.