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TransCanada shuts down Keystone oil pipeline after another leak

TransCanada shuts down Keystone oil pipeline after another leak

TransCanada said in a statement it discovered the leak 6 a.m. on Thursday after systems detected a drop in pressure, and that it was working with the authorities as it investigates.

TransCanada (NYSE:TRP) says it has shut down part of its Keystone pipeline after 5K barrels of oil leaked in South Dakota.

At least 210,000 gallons of crude oil derived from oil sands-a thicker, sticker type of oil than conventional crude-spilled from the pipeline into an agricultural area, according to South Dakota's environment and natural resources agency. In addition, Reuters reports that a portion of the pipeline running from Alberta to Oklahoma and IL has been closed until further notice, yet the pipeline's southern leg remains unaffected and continues to operate. State regulators have already granted construction permits for the pipeline.

For comparison's sake, the Keystone pipeline experienced a previous leak in April 2016 that, at 16,800 gallons (or 400 barrels), was much smaller in scope. One of those leaks happened in southeastern North Dakota in May 2011, when 14,000 gallons spilled after a valve failed at a pumping station near the South Dakota border.

The federal Pipeline and Hazardous Materials Safety Administration didn't immediately return an email requesting additional information from The Associated Press.

The same pipeline leaked about 17,000 gallons a year ago near Freeman, South Dakota. The project has received needed approvals in states between Alberta, Canada, and Nebraska.

The shutdown did not affect the Marketlink pipeline system, which uses the facilities of the southern leg of the Keystone system from Cushing to the Gulf Coast. The PSC will announce its long-awaited decision on the application Monday.