What are you seeing Propane cost?

I just had to get some propane tanks filled.
20lb was $10.00 straight up.
30lb was $17.00 straight up.
this seemed like a good price.
The sign was metal with painted cost on it so I know they don't change the price that often.
This was local mom&pops owned propane refueling business and fireplace/grill store.
Just curious?
randy