If not (ie two full-time working spouses) your only other option is going into land conservation deals, solar deals, or oil and gas deals - all of which have some risks.Explained in a different way...1) There are ordinary/W2/active income on one side.

I know that it used to be common to mix diesel with used oil or tranny fluid what ever was handy .It was used for termites carpenter ants any other wood munchers they drilled into the ground and also sprayed exterior of buildings and wood floors of trailers to help preserve the wood.

As for the oil, figure out the cubic footage of each, and split the cost on a per cubic foot basis..I'm William O'Donnell too.In fishkill ny, from Bronx ny, Tipperary ancestry... nice to meet you

Anyway, I've learned that over the years that if a RE guru paints this long drawn out picture that you suck, but our program/software can make you not suck, it's probably snake oil.

It's been done by the Oil Industry (which we should expect) and recently mostly by the Green industry.

I manage a lot of people money, vendors and contracts in my field and see snake oil everyday. 

Fresh water by then might become more valuable than oil in this dystopia vision of the future.  

Rarely does a tenant's repair list contain anything major that we missed in our own inspection, but it has happened for us on two occasions ... the most significant was a long-term tenant who told us things were much better since the owner upgraded the old oil boiler to a new natural gas one {we knew the boiler had been upgraded}, but then went on to muse that she never understood "why they didn't dig-up the old tanks like was done at the building next door."

My impression is it is tied to the oil market so likely Tulsa is doing just fine.

There are gaps around the old furnace oil pipes on the South side near the crawl space wall.