My aunt had an commercial property in  northern NJ where the tenant dumped oil. 

Oil and gas royalties are real.

The furnace is old but working (oil) and the well is ok.  

I was thinking of getting one, house is 100 year old I would be putting it on and is oil heat.

I analyze what I have to do versus what I am saving.For example with changing your oil by the time you do it, get dirty, and have to dispose of the oil it takes more time and only saves you a few bucks.

In addition, the building uses oil heat.  

"If wishes were fishes, all men would eat"

Don't flounder; if it's one thing we agents can smell it's bad fish.#5 Create a discussion, not one way information drain.

Try to catch quality fish and not just a lot of fish.

I currently have about 100 plus contacts of guys who make 200k a year, and are looking for other streams of income (go look at oil prices).I need help with proper research, establishing property values.