Inherited mineral rights / lease offer "newbie

New to all of this. Our family has mineral rights in Hughes County, OK. 3 people share in the rights as it has been inherited and split amongst heirs. 1 of the parties has received a letter offering a lease or sell option for the mineral rights. (my aunt) Don't all 3 parties have to agree on how to proceed? I talked to the landman who sent out' my aunts letter, and he did not have correct information from the courthouse. I am going to try and fix that. Is that the best way to start things rolling correctly? How do I know what is/is not a "good" lease offer?

Diane: Each mineral owner can make their own decision regarding leasing, selling, etc. Each of you own an undivided 1/3 interest in whatever the group inherited (assuming you each inherited a 1/3 interest). Recording an Affidavit of Ownership in the county land records with your current contact information is a good way to make sure anyone interested in your acreage can locate you.