It hasn't been a kind year to rail companies hauling crude. Several significant derailments have left many dead, and many more asking questions on the safety of hauling millions of barrels of crude oil via rail.

The latest incident happened yesterday in Casselton, North Dakota, where apparently a grain train derailed, pushing a crude oil train on the rail next to it off the track, leading to a massive fire.

Voluntary evacuations were in order for the community of Casselton, with experts scrambling to measure air quality to make sure the heavy black smoke wasn't impacting near by residents.

Casselton is located west of Fargo, near the Minnesota-North Dakota border. The train belongs to Burlingston Northern Santa Fe. The good news? No injuries were reported as a result of the train derailment at this time.

Details on the fire remained sketchy, but we understand the fire is contained to the two cars, and the local authorities are working to cool the adjacent cars.

Generally, crude rail cars can hold up 650 barrels of crude oil, or over 27,000 gallons. According to sources, the maximum number of cars carrying crude on a single train is 110 cars.

This incident follows another major accident that occurred in Quebec in June.