No, you do not. The water rights are normally owned by whoever owns the surface, and has nothing to do with mineral rights ownership. In some states, such as Texas, the ownership of the water rights and wind rights can be severed, just as with mineral rights. In other words, minerals could be owned by one party, wind rights by another party, surface rights by another party, and water rights by still another party.
It happens pretty often around municipalities in West Texas that they will buy water rights from surface owners.
The water in Blaine County, for the most part, is pretty poor. It is a far cry from the Ogallala aquifer that runs through Texas, the Panhandle of Oklahoma, Kanas, Nebraska, etc.