My GC claims this is plenty of power since hot water and furnace both run on natural gas.

I prefer conventional because you have skin in the game.

You have no skin in the game !!

I think geographical diversification is very prudent for the very reasons stated by @Marco Santarelli .Another reason: natural disasters (which seem to be more frequent nowadays).

Our insurance provider also penalizes us for oil heat.When we are putting together an offer on a property with oil heat, we price in a conversion to either electric (heat pump) or natural gas.That said, we have ended up running a property with oil heat prior to conversion and, while the tenant was responsible for the heating costs, we coordinated the oil delivery - given we received a 5% discount as a result of our affiliation with a local apartment owners association, the Tenants were keen on the arrangement.

I don't want tenants using the attic for storage since this area contains the HVAC, water heater and natural gas lines.

A natural resource boom can be shifted by world/political events, economic changes, environmental considerations, etc.

Bonds, stocks, gas, natural gas, etc.

Tom are you sure that wasn't Harry Reid complimenting Obama on being a light skinned boy instead of a dark skinned boy who didn't have a distinct boy dialect unless he wanted to?

It's too hot, and the relentless sun is not good for skin...