The owner of the Keystone pipeline says a segment that ruptured in North Dakota has been isolated and the oil spill has been contained.
Calgary-based South Bow Corp. says it estimates 3,500 barrels were released, equivalent to more than 556,000 litres.
South Bow says its control centre detected a pressure drop on Tuesday morning and the system that brings Alberta crude to U.S. markets was immediately shut.
The spill happened in a rural field about 100 kilometres southwest of Fargo, N.D.
South Bow says it has set up round-the-clock air and environmental monitoring and that it is now focused on cleanup.
Randy Ollenberger, head of oil and gas research at BMO Capital Markets, says the shutdown isn’t affecting Canadian heavy oil pricing yet as there is ample room in storage tanks in Hardisty, Alta.
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“As long as we don’t have Keystone down so long that storage tanks start to fill up to capacity, it may not have much impact on the market,” he said Tuesday.
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