US orders Keystone pipeline shut down after leaks: Globe and Mail

U.S. regulators have barred TransCanada Corp. from restarting its Keystone pipeline until the company can provide more proof that the system is safe, after several leaks in just a year of operation….. 

 Following at least three Keystone leaks in May, the U.S. Pipeline and Hazardous Materials Safety Administration took sudden action Friday. It issued a corrective action order that mandates 14 steps TransCanada must take before resuming operations, including demands for information, mechanical and metallurgical testing and a report on all issues and incidents on the line…. 

 For Canada’s oil and gas industry, the Keystone outage is just the latest in a series of pipeline-related headaches. A major Michigan spill on an Enbridge Inc. pipeline last summer resulted in rolling outages that lasted until this spring, as the company worked to fix problems on the line