Will,
First off, Pikewood Energy does not have a good reputation within the industry. I would recommend you hold onto your minerals, however if you prefer to sell them, I would recommend you contact an Attorney for assistance.
In Ritchie County, there is an excellent firm Windom Law Offices that would be able to assist you, another Attorney I would recommend is B. Scott Wolfe, also in Ritchie County. Both would be able to give you guidance and assist in insuring you receive a fair market value for your ownership.
Cheers