SWD well- 9 miles SW Lamesa

I have an old dry hole that is permitted to be made into a disposal well. what is the value of SWD? who buys these? this seems like it has potential

the legal description is N/2 of section 42-Block 36-T-5-N

I own the 320 surface acres, with this dry hole- I want to sell the surface rights only- what is the going rate- currently cotton farm- minerals are leased to CGS