I show that XTO has permits for the following wells that cover your 163 acre tract:
Cassidy Unit 2 - proposed 645.9 acre unit - 12 Wells
3025SH (Well Numbers)
Cassidy Unit 1 & 2 Allocation - proposed 1,292.78 acre unit - 3 wells
3005BH (Well Numbers)
You can multiply your decimal by the production to get a rough estimate but the production is not guaranteed to be the same and the price is always unpredictable in a specific sense. Also, just because wells have been permitted does not mean they will actually drill all of them.
As for the production itself, as new wells come online the production will jump and be much higher in the first 6 or so months than any others, this is typically referred to as the “flush” production. During and shortly after this period the wells production will decline sharply but as the life of the well(s) continues the decline rate will level off some but will always continue to decline over an extended production sample.
Something to consider when making the decision on whether or not you want to sell your minerals in this particular situation is that a lot of the offers you might be receiving are based on the fact that all of those permits have been filed. What will the offer be in 3 years if XTO never drills the wells? What if they drill only 1 or 2 of them? I see a lot of people say that some of the first offers you receive are the lowest ones but I have found just as often that they are the higher ones because companies are sending out offers on “speculation” and if that speculation turns in to a reality far less than the current possible outcome then no one will be sending out the “crazy” offers you are currently getting.
I guess what I am trying to say is, if it was me and I was considering selling my acreage in here, I would make sure it was to a well funded reputable company that will pay a premium on the potential upside of XTO drilling all 15 new wells on this acreage.
Hope this helps