Do I need an mc#??

Well, no offense meant, but if the bureaucrats cannot tell you, and they are the experts, why ask us ? They are the ones with the official answers. Ask for their decision in the form of a letter, and keep it handy.
Now, I do not believe you need an MC # for intrastate. I know for a fact I am not required to have one running INTRA-state here in Florida, but please ask Texas, and be able to prove what they tell you.

And yes, it is frustrating. Just document everything you are told, and go to hauling freight.

 

Took 32 seconds to find this.
http://www.fmcsa.dot.gov/registration/do-i-need-usdot-number

 

MC number search begins in 3... 2... 1.....NOW.

 

As long as you pick up and deliver in Texas and never cross the state line, you don't need a MC number. But, if you do cross the state line you will need a MC number. Keep in mind that it can take up to 6 weeks to get your MC number, should you decide to go interstate.

 

jbatmick... Can I message you? I have some questions about Florida and would love to pick your brain

 

Did anyone read this link? There are 33 states, including Texas, which require it even for interstate commerce.

 

I assume you meant intrastate, not interstate.

Did you read it? It says that those states require a DOT number, not a MC number. Two different animals

 

Right... my mistake.