The controversial Keystone oil pipeline is expected to be back on line sometime today. The massive pipeline, which runs from Canada to Oklahoma, has been shut down twice in the last month because of leaks, one in Kansas and another in North Dakota.
U.S. regulators had blocked the TransCanada, which owns the line, from restarting until repairs were made and inspected. Pipe fittings were reportedly replaced at 47 pumping stations along the line.
The pipeline has garnered more attention as TransCanada tries to move forward with its plans to extend Keystone all the way to the U.S. Gulf Coast. Opponents have expressed concern about the leaks and increased greenhouse emissions from expanded production from Canada's oilsands region.