Welcome to the Forum.
Any time you get an unsolicited offer, the buyer knows something you don’t know and has every intention of making a profit. Personally, our family does not sell (at this time), but uses the offer to figure out what is going on in the area and get more informed. Is there pending drilling; are there back royalties that need to be claimed, etc. Does selling fit in with your family’s financial plan? You may have to pay capital gains tax, so consider that as taking away from the total offer. If someone randomly drove up and offered to buy your car, wouldn’t you sit back and wonder why?
Given the current economic situation, all offers may be on hold for a while.
I suggest that you go to the Midland County Category and read up on what is going on. Look through the recent postings on the Permian Basin. Learn which websites are available for finding information. They are posted in various places on the forum.