Dalrymple met with BNSF Railway Chairman and Chief Executive Officer Matt Ross at the company's headquarters in Fort Worth, Texas, to discuss safety issues associated with rail delivery of crude oil.
A BNSF train carrying crude oil derailed Dec. 30 about 25 miles west of Fargo, N.D., after colliding with a train carrying soybeans. No injuries were reported.
"I wanted to ask BNSF more questions about the operation of trains that carry oil, their safety measures and about the tank cars used to ship North Dakota crude oil," Dalrymple said in a statement Friday. "We're going to pursue this until we're satisfied that the appropriate measures are in place for maximum public safety."
Energy companies are using railways to deliver crude oil from North Dakota because there's not enough pipeline capacity to keep up with oil production.
BNSF said its customers may experience some delays in getting their North Dakota crude oil because of the December accident.