It would really help if people took the time to see where the terminal for the oil is located. 
Tankers will pass under three bridges with a minimum passage width of 150 meters. These tankers can be 40 meters wide or more. 
The tankers then proceed through a city of a few million while navigating the waters of Canada's busiest port. 
Move the terminal and many people will be ok with it. Google Westridge Terminal and look at where it sits.