Oil prices fell on Thursday amid weakening factory output in China and Japan and record US crude output, although markets remained relatively well supported by supply cuts led by producer club OPEC.
International Brent crude futures were at $66.04 per barrel at 0747 GMT, down 35 cents, or 0.5 per cent, from their last close.
US West Texas Intermediate (WTI) crude oil futures were at $56.78 per barrel, down 16 cents, or 0.3 per cent, from their last settlement.
Prices were dragged down by surging American crude oil production, which has risen by more than 2 million barrels per day (bpd) over the last year, to an unprecedented 12.1 million bpd.
