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South Bow will restart Keystone with reduced rates on Tuesday

South Bow said it plans to restart Keystone by Tuesday, April 15th, the company announced on Saturday. It shut down the main conduit for the flow Canadian oil into the U.S. because of an oil spillage in North Dakota.

South Bow needs to receive written approval from U.S. Pipeline and Hazardous Materials Safety Administration, or PHMSA, must approve the restart of the pipeline before it can be done. Keystone will continue to operate in the U.S. at reduced rates even after it is restarted, according to the company. This is due to a Friday corrective action order from the PHMSA.

Keystone also said that it had agreed to reduce the pressure on the Canadian sections as part of an accord with the Canadian Energy Regulator.

PHMSA earlier on Friday said that Keystone's history of issues shows a pattern of more frequent and larger oil spills on the over 600,000-barrel-per-day pipeline.

The U.S. Government Accountability Office report for 2021 found that 22 spills occurred between 2010 and 2020.

PHMSA also ordered South Bow, to conduct a new metallurgical and mechanical test and to reevaluate the previous inspection tests. South Bow has agreed to perform a root-cause failure analysis.

Keystone was pumping approximately 17,844 barrels per hour of oil when a portion of the pipeline ruptured near Fort Ransom in North Dakota on Tuesday, spilling 3,500 barrels into agricultural land.

According to PHMSA, as of 1 am CDT April 11, approximately 1,170 barrels had been recovered. Cleanup operations are still ongoing.

This week's rupture was compared to another on the same pipe in North Dakota, in 2019 when over 4,000 barrels were leaked. The initial findings of PHMSA’s investigation indicate that the pipe involved in both incidents were manufactured by Berg Steel Pipe.

Berg Steel has not responded to our request for comment. (Reporting and editing by Shariq KHan in Bengaluru, Devika Nair at the Associated Press)

(source: Reuters)