The tanker cars that exploded in the deadly train derailment in Quebec were hauling oil from North Dakota.
Forum Communications reports that about 1,000 railcars leave the Bakken oil field every day, according to the North Dakota Pipeline Authority. That's about 15 times the amount of oil shipped by rail from North Dakota three years earlier.
The Montreal Gazette reports that at least 13 people died and 37 were still missing after a Montreal, Maine & Atlantic Railway train derailed in the town of Lac-Megantic, Quebec, near the Maine border Saturday. All but one of the train's 73 tanker cars were carrying oil.
Justin Kringstad, director of the Pipeline Authority, told the newspaper that it would be difficult to determine where in North Dakota the train was loaded because that information is typically not made public.
Seventy-five percent of the oil produced in North Dakota leaves by rail.