The nearly 2,700-mile Keystone oil pipeline was shut down Tuesday morning after it ruptured in North Dakota, halting the flow of thousands of gallons of crude oil from Canada to refineries in the U.S.
In the debate over TransCanada's controversial Canada-to-Texas oil pipe, the Ogallala aquifer and the Nebraska sandhills have emerged as flashpoints Sign up here. The Canadian company TransCanada ...
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