A special exemption from 2017 allowed the Keystone Pipeline to operate at pressures above the standard for crude oil transport, a report from the federal government shows. The exemption is receiving new scrutiny following last week’s oil spill in northern Kansas, the largest in the pipeline’s history.
A special exemption from 2017 allowed the Keystone Pipeline to operate at pressures above the standard for crude oil transport, a report from the federal government shows. The exemption is receiving new scrutiny following last week’s oil spill in northern Kansas, the largest in the pipeline’s history.