Sixteen of the 96 tank cars on the train derailed Friday near Mosier, Oregon, about 70 miles east of Portland. The tank cars that derailed in Oregon were newer model CPC-1232s, said Union Pacific spokesman Justin Jacobs. Department of Transportation rules imposed last year require companies to use stronger tank cars that are better able to withstand derailments. At least 12 of the oil trains that derailed over the past decade were carrying crude from the Northern Plains' Bakken region. Union Pacific officials said Saturday the company had inspected the section of track where the derailment occurred at least six times since March 21.

Source: ABC News June 04, 2016 06:33 UTC