Finding oil tracts from my grandfather

I am attempting to understand everything but I literally have no experience in this sort of stuff! J S Mabry is my 2nd great grandfather my grandfather inherited property/mineral rights and is signing it over to me. My grandfather says that there should be 130 acres and multiple wells. However, we live in Louisiana and no one ever really kept up with everything. I have information on 30 acres that includes 3 wells. 2 oil and 1 gas I believe. I took a trip and viewed the property and there seems to be lots of activity around the property on other leases but the wells on our property look old and not in use. How would we go about having those wells checked again? Is that something we can do? And how would I go about finding out if there in fact any other parcels that my grandfather inherited rights too? I hope my questions make sense! I appreciate any insight you guys can offer me! SEC 3 TWP 3S RNG 5W