The spill marked the latest in a series of wrecks across the U.S. and Canada that have highlighted the safety risks of moving crude by rail.
No one was reported injured in the accident Thursday night that triggered the evacuation of about a dozen homes and a camp for oil field workers, according to state and local officials. It comes after recent oil train crashes, including a 2013 derailment in Quebec that exploded and killed 47 people.
