Class B Tanker jobs

I've had my Class B license since 2012 and until a year ago I only drove delivery trucks. Last Summer I took a job with a local Septic company and realized I really like driving tanker trucks.
Although I like my job for now I like to keep my options open.

So I was hoping you guys could help me compile a list. What other kind of Class B tanker jobs are out there?

*NOTE* I do NOT have a hazmat endorsement.

Thanks in advance for any help.

 

Thanks for the input! Due to the rural nature of my area the only other non-hazmat tanker wagons I've seen are water trucks for construction sites. I have thought about getting my Hazmat but the closest TSA office is 4 hours in either directions from where I live so it makes it a little hard.

I've recently found out that Ready Mix trucks need a tanker endorsement here in California. I guess this makes sense but why don't other states require a tanker endorsement for Ready Mix trucks?

 

My buddy got a job at a local Ready Mix company driving a Ready Mix straight truck and he told me he was required to get a tanker endorsement.

I had to look it up in the California CDL manual because I didn't believe him haha.

Good 'ol California...

 

I've talked to a couple of guys who work at the local Amerigas and the said they had to go to a TSA office. The closest one would be Bakersfield, to the south or Reno, NV, to the north. Both are about a 4 hour drive and they aren't open on weekends and that makes it even harder.