U.S. government regulators have stopped allowing a large part of the Keystone oil pipeline to operate at higher-than-normal pressures following a massive oil spill in northeastern Kansas in December.
The order this week from the U.S. Department of Transportation's pipeline safety arm covers 1,220 miles (1,963 kilometers) of the Keystone pipeline in seven U.S. states. Regulators already had ordered the system's operator, Canada-based TC Energy, to reduce the pressure on a 96-mile (155-kilometer) segment of the pipeline from southern Nebraska near the Kansas border into central Kansas, where the spill occurred.
