US oil prices remained near two-year highs on Thursday as the shutdown of the Keystone pipeline and a drawdown in fuel inventories pointed to a tightening market, despite rising output.
US West Texas Intermediate (WTI) crude futures were at $57.95 a barrel at 0143 GMT, down 7 cents from their last settlement, but still close to 2015-highs of $58.15 a barrel reached the previous day.
Brent crude futures LCOc1, the international benchmark for oil prices, were at $63.19 per barrel, 13 cents below their last close.
WTI has been buoyed by the shutdown of the 590,000 barrel-per-day (bpd) Keystone pipeline, one of the
