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

A portion of the Keystone Pipeline ruptured near Fort Ransom, North Dakota, around 7:44 a.m., according to local reports.

The Keystone oil pipeline from Canada to the United States was shut on Tuesday after an oil spill near Fort Ransom, North Dakota, its operator South Bow and the state's Department of Environmental ...

The Keystone Pipeline in North Dakota was shut down Tuesday after reports of a "bang" and spilled oil, according to officials ...

The Keystone oil pipeline was shut down Tuesday morning after it ruptured in North Dakota, with the spill confined to an ...

An employee on a pump station heard what was described as a mechanical bang early Tuesday morning, an official told CBS News.

A large oil spill in 2011 from a floating oil production vessel off the coast of Nigeria, known as the Bonga, was one of the ...

U.S. and Canadian officials are monitoring a crude oil spill that was detected Thursday in the Canadian side of the St. Clair ...

South London residents fear another ‘environmental disaster’ after a second oil spill in the River Wandle in just two months ...

The bill would, in part, ban oil and gas drilling​ within 10 miles of the state's three National Estuarine Research Reserves.

The Department of Environment (DOE) investigation team has carried out inspections and sent samples of the oil spill that ...

PUTRAJAYA: A Department of Environment (DOE) investigation team has carried out inspections and sent samples of the oil spill ...