I work offshore on an oil rig and work 3 week rotational work which means I am on the rig for 3 weeks and then off the rig for three weeks.

You've asked a great question and I am confident that you'll be able to add value to a well-oiled wholesaling OR real estate company. 

Could be a minister cooking meth.The owner could even turn it into a rental and we all know how bad that can be.A lot depends on the neighbourhood and home prices.

This doesn't mean your property needs a hot tub, but it does mean you need to add the thoughtful touches that make it feel like home: a well stocked kitchen with all the cooking essentials, more than just a stingy supply of "starter" household products (don't be the guy who leaves a couple of Tide pods, one dishwasher tab and one roll of toilet paper in each bathroom).

Jobs market is overly dependent on oil and gas.

However if I were staying I would very much prefer to have a living space to wind down in while watching a movie on the couch and the ability to cook a nice breakfast in the kitchen.  

Areas heavy in oil and gas also go through bust boom cycles as prices change.

I believe that is Before tax cash flow/ (Total Annual Expenses + Annual Debt Service) This will give you a percentage that will tell you how far off your numbers can be and still break even.I understand Dave Ramsey's point and my personal coach Steve Cook also preaches debt free investing.

@Kevin Cook, thank you.

Those customers declined both offers and stayed in a STR where they could cook, do laundry and sleep in their own room for less money than the cash rate.