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.

The National Oil Spill Detection and Response Agency has ... to the host communities that have suffered from the devastating effects of oil pollution.

Nearly 11 million gallons of oil spewed into the picturesque ... impacted wildlife populations for years. The spill had a catastrophic effect on the economy of the area as well.

The ship is thought to be carrying "furnace oil", described as dark thick, and when spilled, pernicious - but the government ...

Environmental experts are worried the cumulative effects of gas, oil and fuel spills aren't being adequately tracked in parts of the North. As of last week, the N.W.T. and Nunavut together ...

BISMARCK, N.D. (AP) — Trucks and workers started cleaning up the Keystone oil pipeline spill in rural North Dakota ... in the Midwest and could have more effects on diesel and jet fuel because ...