Anyone familiar with mineral rights???

[Pono Wright]

Recently I have been purchasing a lot of land & turning them into payments for deed with pretty good success. Many of the clients that I buy land from have the mineral rights but I am having a hard time figuring out the process of putting the mineral rights in my name.( From what I know, just stating on title is not enough & title companies say they don't do it either.) Does anyone know the extra steps I need to do to obtain the mineral rights when I buy the property? My purchases are mainly focused in Nevada.

Anything will help. 

Thanks