You need to calculate the decimal interest first from the Division Order.
Net acres/spacing acres x royalty x percentage of perforations.
For example. 10 acres at 3/16ths royalty and 40.7216 perforations percent.
10/640 x .1875 x .407216=0.00119302. For every dollar the well makes, this is the decimal credited to the 10 acres minus taxes and any post production charges that your lease allowed (hopefully none).
As a guestimate to keep numbers rounded…
700 x 30 days x $1.88 = $39,480 gross gas income for the whole well
285 x 30 days x $25.00= $213,750 gross oil income for the whole well
Total for the month is $253,230 x decimal amount (0.00119302-your portion) =$302.11 for that month only. Starting point.
Minus 7% OK production tax ($21.15) minus Ok personal tax minus federal tax. I am going to guess at 7% OK and 23% federal to keep numbers easy ($90.63) gives about $190 for the month for the 10 acres. if your lease has post production charges, then you will lose even more.
Note: you can claim ~15% depletion on the federal tax (check with your accountant), so you get some of the money back in depletion credit.
Note: Each operator has contracts for their gas and oil, so you can’t really judge by the gas and oil prices you see quoted in the news. Usually, OK has lower prices.
Note: The first few months of production are the highest volume that you will see. It will begin to decline rapidly, so don’t count on it staying at the original rates. The oil and gas prices change every month, so that is also an unknown.
This is just an estimate to show you how it is calculated. Yours may vary due to the number of acres you have, the terms of your lease, price of oil and gas, actual production, etc. You also may get paid on natural gas liquids which have a different pricing.