Offers to sell mineral rights

I have continued to receive offers for my mineral rights. Has anyone had any dealings with Rigid Energy Group or Texas Petroleum Land Management? I would be interested in exploring the offers but I am hesitant as I know there are many offers that are scams. Any information would be greatly appreciated. Also, does anyone think that the clerk in Howard and Bordon Counties have any input?

Thank you so much for any assistance,

Michaelee Stack

Moved this over to Howard County for you. The clerks are not supposed to get involved other than filing legal documents.