Keystone operator restarts pipeline nearly a week after spill

By Carlos Anchondo, Ian M. Stevenson | 04/15/2025 06:28 AM EDT

The oil conduit ruptured April 8 in North Dakota, releasing an estimated 3,500 barrels of oil.

Unused pipe for the Keystone XL pipeline sits in North Dakota in 2014.

Unused pipe for the Keystone XL pipeline sits in North Dakota in 2014. Andrew Burton/Getty Images

The operator of the Keystone pipeline restarted the oil conduit less than a week after it ruptured, spilling thousands of barrels of crude in southeastern North Dakota.

Calgary-based South Bow said Monday that federal pipeline regulators approved the company’s repair and restart plans, allowing it to move forward with a “carefully controlled” restart.

Also on Monday, spokesperson Nathaniel Sizemore of the Department of Transportation confirmed that the department had given a green light to South Bow’s plans. He said the Pipeline and Hazardous Materials Safety Administration — which is part of DOT — acted quickly to send investigators to the site in North Dakota and to South Bow’s headquarters in Canada.

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“As part of our safety investigation, the operator was required to submit a repair plan and a restart plan. These plans met PHMSA standards and the agency has signed off on both,” Sizemore said in a statement. “PHMSA’s investigation is ongoing and the pipeline is operating at reduced pressure until PHMSA is confident that the pipeline can resume normal operations.”

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