The latest leak in the Keystone oil pipeline in North Dakota on Tuesday continues the troubled history of the 15-year-old pipeline. The 2,700-mile-long (4,350-kilometer-long) pipeline originates in ...

The 2,700-mile-long (4,350-kilometer-long) pipeline originates in Alberta, Canada, and carries heavy tar sands crude oil south across the Dakotas and Nebraska before splitting to carry oil both to ...

Amid a heated federal election campaign in Canada, Prime Minister Mark Carney is suggesting that the country can expand oil ...

The pipeline ruptured Tuesday morning in southeastern North Dakota and was shut down within two minutes by an employee who heard a mechanical bang.