I am aware of the diverse expertise range in BP.  

Contractors are a many varied and diverse creature and you need to be diligent and thorough in your search for the one that fits with your plans and goals.

Sometimes that makes sense, if you just want to have workers around "just in case", but most of the time volume + diversity = good portfolio.

As for the question about oil prices, I would agree with @Richard Spooner that Houston will not suffer this downturn as much as it did in the 80's due to so much more diversity in the types of industry that are now supporting the region.

A mile can encompass a very diverse grouping of neighborhoods. 

Colorado has incredible diversity with regards to real estate opportunities.

State regulators are well positioned, as the regulatory authorities of these institutions and as regulators with experience and responsibility for a diverse range of depository and non-depository financial services providers, to design and implement a comprehensive prudential regulatory framework for non- bank mortgage servicers.

As a kid my brother and the other boys in my neighborhood would watch A-team and MacGyver because they realised that there was always component left out when they would construct their diversions and explosions.

It'll take me a little longer to get the funds together but then at least I'll maintain a diverse investment portfolio, some stocks and some real estate. 

I recently selected a tenant who worked at a local college, after she passed the background check, in part because her source of income is not correlated with the local economy.This type of analysis should still be completed for investors in large urban areas with diverse employment opportunities for tenants.