Hi talal007,
I agree with Duncan. From the list you provided University of Alberta is the strongest school considering you want to be in Energy sector. I was in touch with few students who graduated from Schulich - York University in 2010/11, they told me that several international students found employment in that region. As per their assessment usually Canadians prefer cities like Toronto, Ottawa, Vancouver. Assuming that this assessment is accurate, it would make sense to be close to the demand.
Just make sure that you want to work in Calgary / Alberta. For example if you dream of joining a big consulting form based in GTA then It may be difficult to find employment considering you will be competing with graduates from Ivey, Queens, Rotman, Schulich etc.
Good luck!