Photo of an "oil tanker" car in a freight train

Transporting large quantities of petroleum products requires specialized systems, such as railroad tank cars and pipelines.

Image credit: Harvey Henkelmann, own work. The copyright holder of this file allows anyone to use it for any purpose, provided that credit is given to the photographer, Harvey Henkelmann. Via Wikimedia Commons.

Last modified
14 June 2015 - 6:11pm