Calculating NRI when well is in two sections

I’ve figured this out for the one vertical well (my statements confirm this) but how do I do this for the other seven wells that share two sections. 17 08n 04w and 8 08n 04w. I have 10/640 at 3/16. I assume it’s a different formula?

I’ve learned I should start receiving payments 5 or 6 months from sale, how would I find when the sale took place? I’ve looked at the OTC and saw all that info. I understand EOG is behind, I tried contacting them but wasn’t able to talk to a person and had to leave a message. A month ago I did get a request from them for a w-9 which I sent.

For Oklahoma, the formula is:

net acres / actual spacing acres x royalty x % perforations in your section.
So 10/640 x .1875 x % perforations in your section. Each of the horizontal wells may have slightly different splits between 17 and 8. EOG should have a final order from the OCC listing what they are.

If you look on the OK Gross Production site, the “active” date is fairly close to the first sales date. Look them up under 17 08N 04W.