Venezuela's Oil Exports Almost Unchanged At 1.08M Barrels/Day In Oct; Venezuela's Oil Exports To U.S. Fell To 449,000 Barrels/Day In Oct; Venezuela's Oil Exports To Europe Increased To Some 235,000 Barrels/Day In Oct; Chevron's Exports Of Venezuelan Crude Up To Some 303,000 Barrels/Day, Traders Exported 506,000 Barrels/Day