Rochelle,
Mineral appraisals can be a complicated exercise and must take into account size, limits, exploration, and production for accuracy. In your area, potential value is another consideration and includes lease ability, value of existing leases, potential title concerns and projected geology absent close-by exploration and minerals other than oil and gas. At the heart of any appraisal is the legal reason for obtaining one as those specific questions must be dealt with and answered by the appraiser. “Friend” me and let me know some of the answers above and I will give you several recommendations if there is a “fit” between their talents and your needs.