The Keystone Pipeline was shut down Wednesday night after fuel began to leak into a creek in Kansas, about 20 miles south of the border town of Steele City, Nebraska.
Canada-based pipeline operator TC Energy said an emergency shutdown and response was initiated after alarms sounded and a pressure drop was detected in the system.
“The affected segment has been isolated, and booms deployed to control downstream migration,” the Calgary company said in a release.
TC Energy declared force majeure, a contractual term used when a company encounters an “act of God” and which typically indicates that supply agreements will go unfulfilled, according to Bloomberg.