Inherited Mineral Rights and money

I am very new to owning mineral rights and not very educated about how everything works. I inherited money that had not been paid out since Equal Energy could not find me. Then the company stopped production in 2015-16. I am now getting a letter from Anchor Land Group on behalf of Prairie Gas Co. of Oklahoma, LLC. I have seen in this forum that Anchor Land Manage. is not a good company to go with. I am also wondering if there is anything going on in Section 15,14N, 4E.