What your minerals are worth depends on a few things.
Producing or not.
A producing interest is valued from its actual decline and check history. A non-producing interest is about the odds and timing of future drilling. The two are weighed very differently, and which one you hold changes everything.
Which play you sit in.
STACK in Kingfisher and Canadian behaves differently from SCOOP in Grady and Garvin, and both differ from the deeper Anadarko. Offset wells, operator activity, and the stacked zones beneath you all feed the number.
Your lease and your fractions.
The royalty rate, the deduction language, your pooling election, and the exact fractions you own across each section all shape what reaches you, and therefore what the interest is worth.