Keystone pipeline spill pushes oil higher "U.S. West Texas Intermediate crude ended up $1.41, or 2.6 percent, at $56.55 a barrel. Traders said the shut-in would add to bullish sentiment due to fewer barrels going into Cushing, Oklahoma, the delivery point of the WTI contract. The WTI prompt spread (CLc1-CLc2) narrowed by as much as 8 cents.
If the pipeline is shut for a week, it would affect at least 2 million barrels of crude going into Cushing, according to estimates by traders. The pipeline also brings oil into Patoka, Illinois.
Export pipeline shutdowns also pressure the price of Canadian crude because barrels get bottle-necked in Alberta.
The discount for Western Canada Select for January delivery in Hardisty, Alberta, widened to $16.00 per barrel below the West Texas Intermediate benchmark, according to Shorcan Energy brokers. On Thursday, January barrels settled at $15.50 per barrel below U.S. crude."
https://www.reuters.com/article/us-transcanada-keystone-spill/keystone-pipeline-spill-pushes-oil-higher-fuels-transcanada-opponents-idUSKBN1DH24O