 "Oil prices rise on account of Canadian pipeline disruption to US")
Oil prices jumped by 1 to 2 percent on Wednesday as ongoing cuts of piped Canadian crude to the United States added to falling US crude inventories, while expectations of a prolonged OPEC-led production cut also offered support.
US West Texas Intermediate (WTI) crude futures were at $57.96 a barrel at 0753 GMT, up $1.13, or 2 percent from their last settlement.
Brent crude futures, the international benchmark for oil prices, were at $63.30 per barrel, up 73 cents, or 1.2 percent.
Traders said the firm price lift was due to drop in crude supplies from Canada to the United States.
TransCanada Corp said it will cut deliveries by at least 85 percent on its 590,000-barrel-per-day (bpd) Keystone crude pipeline through the end of November. The pipeline, which links Alberta's oil sands to US refineries, was shut last week after a 5,000-barrel spill in South Dakota.
Traders said there was also some price support from a weekly report on Tuesday by the American Petroleum Institute which said US crude inventories fell by 6.4 million barrels in the week to Nov. 17.
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The latest official US production and inventory data is due on Wednesday.
Outside North America, markets have been supported by an effort led by the Organization of the Petroleum Exporting Countries (OPEC) to restrain output to end a global supply overhang.
The deal to curb production is due to expire in March, but OPEC will meet on Nov. 30 in Vienna to discuss the outlook for the policy.
"There is growing consensus that OPEC will extend their production cut deal at the end of the month. This confidence along with the current geopolitical environment has kept ICE Brent trading firmly above $60 per barrel," Dutch bank ING said on Wednesday.
"However, an outcome at the OPEC meeting which falls short of market expectations, will likely lead to a selloff, and given the large speculative long in Brent, this could be fairly severe," it added.
J.P. Morgan said in its 2018 commodities outlook, released late on Tuesday, that "oil markets in 2018 will be balanced on the back of extended ... production cuts," but added that without extended cuts markets would be in surplus.
"We expect Brent to trade at the top of the $40 to $60 per barrel range, with Brent averaging $58 per barrel in 2018," the US bank said. "WTI is expected to average $54.6 per barrel.