Carl, I won’t even go into whether you should sell your minerals or not. I will point out that since you have leased them already that you have conveyed 100% of what you owned (with only the possibility of reversion) so now you are in essence selling your royalty stream and a chance at full ownership. In my opinion, you will not get as good a price as unleased acres. What I think you should do is what you think best based on whether you need to sell or are merely considering an opportunity. If it’s just an optional opportunity, I personally would wait for the lease to expire, to extract the full amount from a sale. The minerals may appreciate considerably in the time it is leased, and if a well is drilled and you are receiving royalty, your desire to sell may disappear. Be wary of unsolicited offers, many people get them just ahead of a well or the division order for a well. I would investigate to see if there is a well or activity in the area. I, and others frequently receive mass mailing lowball offers to buy our mineral interests, I have never yet seen one I thought was even close to a good deal. Some of these offers come from Dale Resources, Permian Basin Acquisition, Ageis, Bridgeport and so forth. Good luck with your decision.