The 622,000 b/d Keystone crude pipeline is expected to resume service by 15 April, following a leak in North Dakota that shut deliveries last week.
Calgary-based pipeline operator South Bow said the repair and replacement of the leaking section of pipe was taking place over the weekend. Once the company meets the terms of a corrective action order (CAO) issued by the US Pipeline and Hazardous Materials Safety Administration (PHMSA), it will be able to resume service.
The pipeline has been off line since early on 8 April, when a leak was discovered in a rural field near Kathryn, North Dakota. An estimated 3,500 bl of crude was released but did not appear to have reached any waterways.
"Keystone is targeting restoration of service and energy deliveries by Tuesday April 15, 2025, under the requirements of the CAO," South Bow said. "South Bow will require approval from PHMSA prior to restarting the pipeline."
Under the CAO, South Bow must run metallurgical testing of the failed section of pipe, conduct a root cause analysis and meet other requirements. The pipeline system will also have to comply with certain pressure restrictions on Canadian sections of the line.
The Keystone system is a major route for Canadian heavy crude destined for both the US midcontinent and the US Gulf coast, delivering about 15pc of the roughly 4mn b/d that the US imports from its northern neighbor. The line runs from the Canadian production and storage hub at Hardisty, Alberta, to Steele City, Nebraska, before splitting in two to head toward Illinois and the Gulf coast.
Discounts for Western Canadian Select (WCS) at Hardisty to the CMA Nymex narrowed at the end of last week despite the shutdown, because of low inventories in Hardisty and open pipeline space on Canadian crude pipelines, including Enbridge's 3mn b/d Mainline system to the US midcontinent and the 890,000 b/d Trans Mountain pipeline to the Canadian Pacific coast.
