Land that's been in the family for decades may have unrecorded, and many times, verbal easements for waterlines, etc. that run across the property. Its best to formalize these easements before listing the property for sale. The following article from Texas Agri-Life does a good job explaining the basic types of easements and their related processes. https://agrilife.org/texasaglaw/2020/01/06/easements-101/