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Operators of the base oil pipeline have restarted the system last week after oil spills into farmland in North Dakota.
Calgary-based South Bow said it will watch harsh weather conditions before starting a “well-controlled reboot” that include 24/7 monitoring, reducing operating pressure, cleaning up the site, and complying with federal regulators’ requirements.
Pipeline and Hazardous Materials Safety Management says the failed parts of the pipeline are excavated and replaced and will be taken to a metallurgical laboratory in Houston for testing, while the repaired pipeline will be tested at different pressures to ensure its integrity.
The agency said its investigation is underway, but so far it is unclear what caused the leak.
The company said it has completed all repairs, inspections and testing of the overflow site, and PHMSA has signed up for the company’s reboot plan.
This photo provided by South Bow shows workers gathering in response to the Keystone Oil Pipeline overflow on Tuesday, April 8, 2025.
South Bow via AP
South Bow also said it would impose some pressure restrictions on the pipeline’s Canadian sector and shared the details with Canadian regulators.
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The company’s update did not mention the cause of the leak, although the company said it would share the findings when it was available.
A state leak responded to officials earlier that an employee heard a “mechanical explosion” and closed the pipeline within two minutes.
Spillover is estimated at 3500 barrels, oil, and PHSMA estimated vacuum trucks have recovered about 1,170 barrels so far.
The leak occurred in a field north of Fort Rasom, North Dakota, a small town in a forested area known for its scenic and outdoor recreation.
The 4,327-kilometer Keystone pipeline brings crude oil from refineries in Alberta, Alberta to refineries in Illinois, Oklahoma and Texas. The April 8 leak occurred in Milepost near Fort Rasom, North Dakota.
Courtesy: Nangong
The 4,327-kilometer Keystone pipeline brings crude oil from refineries in Alberta, Alberta to refineries in Illinois, Oklahoma and Texas.
According to a map from South Bow, the pipeline is closed from liquid tank terminals in Alberta and Oklahoma, although the line remains open between Oklahoma and Texas’ Gulf Coast.
Lower oil prices due to tariff issues help prevent gasoline prices from rising, although industry experts say diesel prices can still rise.
Gasbuddy’s head of oil analysis, which tracks gasoline prices, said that gasoline prices almost fell last week due to the focus of tariffs and trade wars.
“I wouldn’t expect this to have a big impact anyway, but because of last week’s oil prices positively dropping, yes, I’d say the drop is far beyond offset,” he said.
& Copy 2025 Canadian Press
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