njdesert7 further to my previous post, if you go to FDM's website & click on fact sheet, there is an excellent map showing exactly where FDM's acreage is & the offset operators.
Haven't looked at their site for a while, will have to visit it more frequently as they seem to update it regularly. You can use the above mentioned maps to see geographically where the acreage is situated by then going to the Railway Commission's site, click on dimmit county, then zoom in to see the surveys, & match them to the ones shown on FDM's fact sheet.