Cleveland Market, Job Growth and Stability

Hello friends, 

REI newbie here and I have been looking at the Cleveland, OH market for Buy & Hold multi-family properties (2-4 unit).

Some of my big questions are around the Cleveland economy and my lack of local knowledge:

Is this recent boom in Cleveland housing and rental demand driven primarily by the booming oil business? 

If so, what are the thoughts on rental demand if this next election shuts down this type of oil drilling?

What areas of Cleveland are most exposed to this risk and would be considered more speculative that I should avoid?

What areas do you believe will weather the storm?

Aside from oil, what other industries are fueling the job growth and potential long-term stability in the Cleveland, OH region?

Thank you in advance for anyone's input! 

Colin