A train that derailed and spilled 35,000 gallons of oil in northeastern Montana was traveling within authorized speed limits, federal officials said Monday as they continued to probe the accident’s cause. The Burlington Northern Santa Fe Railway train loaded with crude from North Dakota was traveling 44 miles per hour before Thursday’s wreck, U.S. Federal Railroad Administration spokesman Matthew Lehner said. Officials have said the maximum authorized speed in the area is 45 mph. Twenty-two cars on the BNSF train derailed near the small town of Culbertson. Lehner said the tank cars were a model known as the “1232,”which is built under a 2011 industry standard intended to be more crash-resistant than earlier designs. But several recent oil train crashes, including some that caught fire, also involved 1232s and federal officials are seeking to phase out the cars. The oil […]