New Owner - Need Consultation

My family has owned mineral and gas rights in two counties in OK for 8 generations. My grandmother would be passing these rights onto me, but she has lost track over time and doesn’t know where to start. She currently receives checks from Mach, Tee Ray Resources, and in the past has received checks from New Dominion, Paloma, Newfield. I believe she should now be receiving checks from Ovintiv or Encanta. I was looking into signing up for Energy Link but only have about half of the info needed to get signed up there. Honestly, she’s left me a mess and I don’t know where to start other than putting in a change of address form in the two counties we own in. I also don’t have the time to learn and do all of this myself as I have been trying to learn and it’s been tough to figure out. Is there someone in OK that anyone can recommend that I can talk to about straightening this out?