Mark also has a YouTube channel with excellent content. 

The tax benefits are amazing and thankfully I have had two excellent tennants, so no huge problems.

Excellent lessons on estimating potential costs are included.   

Your market is still one where you have an excellent chance of selling it.

@Steven Hamilton II is an excellent EA who specializes in REI- you can find a ton of posts from here on BP.

The big issue is to have excellent property management to take care of your property.

Or do just use a simple excel spreadsheet?

AS @Greg H. says sometimes you thank your lucky stars your offer wasn't accepted.I think an excellent strategy in the Permian basin is to continue to watch the market at this point or divert your attention to a more diverse (less petro dependent) area. 

Here's another academic article out of Stanford (just read the abstract and conclusion since this is quite long, I've read many shorter explanations but this coming out of Stanford is most credible) explaining this shortage in dollars in more detail.

Excellent idea!