My Grandmother passed away a few years back. She verbally told me that she wanted me to have her mineral oil and gas leases and royalties. They started out in Tx. Where she was a resident until death. BP oil had them and then some oil company in Louisiana bought them. I am needing to locate the oil company and the parish that they are in. I’m needing a change of ownership from my deceased Grandmother’s name and address to mine so that I can receive mineral Royalty checks owed to me , Dividends and interest and present and future checks sent to me. Please help me with this matter. Thank you! Rachelle from Kansas