very simple go to the county planning department office show them the map and ask them if surface drilling is allowed in their zoning code..

Well, the first problem they have is that the code of ethics of the NAR, as well as most state licensing laws, requires the licensee to treat anybody they deal with “openly and honestly”.  

The first thing I would do is call your local code enforcement office/building department.

Or, rather, what the tax code said. 

How did you decide which neighborhood/street/zip code to start with?

Overall, the 78726 ZIP code ranked No. 21 among the hottest ZIP codes in Texas. 

They are willing to give the lock box code after I have sent over a photo ID. 

I'm not well versed in the tax code by any means but this whole depreciation thing seems like something that applies to some people based on individual circumstance but the gurus preach it to the masses.

You can also look on the city's website under their construction code.

@Isadore Nelson I'm currently seeing 154 available rentals on Zillow in the 19119 zip-code, ugh... is exactly the wrong way to analyze a neighborhood, lets use the 19119 zip code for this exercise: Did you know the 19119 zip code is ~ 3.5 Square miles?