The Keystone oil pipeline running through North America is operating at a reduced pressure following a mid-November spill in South Dakota, the operator said. TransCanada said the Keystone repair and restart plan was approved by the U.S. Pipeline and Hazardous Materials Safety Administration with no objections. Starting Tuesday,  the pipeline will resume operations at reduced pressure. “We are communicating plans to our customers and will continue working closely with them as we begin to return to normal operating conditions,” the company stated. “We will also comply with any future PHMSA orders and requirements as a result of this incident to ensure the integrity of the pipeline.” The company closed down much of the network in North America in mid-November after reporting a […]