I found a site that got me pretty close, but had to study rods, chains, and what was the actual length of rods and chains in Arkansas at that time. Eventually went and walked the area property, found the branch, but it wasn’t until I found who the present owner of the land was and was able to go to county records and determine acreage then. Once leased or especially once receiving royalties, companies will have to get pretty close before checks go out. Maybe you want to participate or claim not to lease/participate, you may still be at driller mercy. I will see if I still have that site info on computer. Google search “how to find acreage by using rods and chains, survey, plat, etc.” I think the site I found was free for 30 days or something, didn’t stay with it. By following the directions, which I didn’t really understand much, my lines crossed a couple of times.