Section 20 and 21, T5N, R! W McClain County, OK

I own mineral interests on 170 acres +/_ in the above area. Currently under lease to Red Sky Land LLC thru 12/2021 with option for 2 additional years. Have received an inquiry from MayHawk Energy to purchase these mineral rights for up to $6000 per net mineral acre even if the rights are currently leased. I’m not sure if there is active drilling or producing wells in these sections. Anyone dealt with MayHawk?? Any thoughts on fair price per net mineral acre? Thank you for reviewing this post.