Minerals with gas production

How would you go about Estimating mineral value on gas production at 7x annual revenue. Is that the total amount of gas pumped per year , then Multipe it by 7??

If you have an old vertical well, the estimates in the past have used the revenue from the past seven years of production. If you have the potential for Horizontal wells, then that is a completely different thing. Also, as we all know gas prices have had wild swings in the past few years so use the 7X with caution. If you are doing for IRA purposes, then you need to get professional help.