UPDATE 1-Regulator: 18 of 20 oil cars pierced in N. Dakota crash
January 13, 2014 at 18:26 PM EST
Jan 13 (Reuters) - Eighteen of 20 tanker cars carrying oil that derailed in the fiery crash of two trains in North Dakota in late December were punctured, spilling more than 400,000 gallons of crude oil, safety regulators reported on Monday.
