Built by the thousands from 2012 the TrinityRrail 31,000 Crude Oil Tank Cars are a prominent part of the crude oil shipments across North America. With the recent developments and oil extraction, mile-long unit trains of these duty specific cars - complete with visually unique end shields are running to nearly all corners of the country. With oil demand and output at an all-time high levels, thousands of these cars have been built over eight reporting marks, with much more to come