Trucks and workers started a cleanup effort at the site of a spill of the Keystone oil pipeline in rural North Dakota ...

The cause of the rupture and the total volume of oil released after the North Dakota spill remain unclear, officials said.

Workers have recovered thousands of gallons of crude oil from an underground pipeline spill on southeastern North Dakota ...

BISMARCK, N.D. — Trucks and workers started cleaning up the Keystone oil pipeline spill in rural North Dakota ... diesel trucks transport those products, he said. Other experts said the ...

Cleanup Underway of the Keystone Oil Pipeline Spill in North Dakota BISMARCK ... grocery prices because diesel trucks transport those products, he said. Other experts said the refineries likely ...