So far, the potential benefits of oil pipelines like TransCanada's (NYSE: TRP) Keystone XL and others have not been enough to convince critics that it is a good idea to construct these pipelines. However, the recent slew of train derailments could be just enough of a lever to help push some of these critical infrastructure projects through. This could be huge for TransCanada, Kinder Morgan Energy Partners (UNKNOWN:KMP.DL), and Enbridge (NYSE:ENB), which combined have $30 billion tied up in pipeline proposals that would move oil out of Canada. 

To find out how pipeline companies can use these recent train incidents as political leverage and which company listed above has the most at stake, tune into the video below.