The Keystone pipeline will return to service on Tuesday, operators announced, almost two weeks after spilling about 5,000 barrels of oil in rural South Dakota.
Keystone operator TransCanada said the pipeline will operate at reduced pressure "to ensure safety and a gradual increase in the volume of crude oil moving through the system."
The company said federal pipeline safety regulators had signed plans for a "return to safe and controlled service."
Keystone leaked 5,000 barrels of oil, or about 210,000 gallons, on November 16, causing a section of the 2,147-mile pipeline to disconnect. Keystone transports oil from Alberta, Canada, to refineries in Texas.
The leak – the third to affect Keystone since it entered service in 2010 – came days before Nebraska regulators approved a permit allowing TransCanada to expand its pipeline system. The company is looking to develop the Keystone XL pipeline, which would deliver Canadian oil to the existing pipeline in Nebraska.
That project still needs to eliminate legal and regulatory obstacles.
TransCanada said Friday it had cleaned approximately 44,000 gallons of Keystone's spilled oil in Marshall County, South Dakota.