Turn a fractional interest into net mineral acres and net royalty acres, and multiply a chain of inherited fractions to find what actually reached you. Fractions like 3/32 are fine in any box.
Your fractional interest times the gross acres in the tract. Add your royalty rate to see net royalty acres, the unit most buyers quote today.
One net royalty acre equals one net mineral acre leased at a 1/8 royalty, so NRA = NMA times your royalty divided by 1/8. A 3/16 lease turns 10 NMA into 15 NRA.
Minerals split as they pass down. Multiply the chain of fractions to find what reached you.
If different generations took unequal shares, or someone's share went through a will rather than intestacy, the clean chain breaks. Send us the documents and we will run the title at no cost.
A net mineral acre is your fractional share of the minerals expressed as acreage: own a 1/4 interest under 160 gross acres and you own 40 net mineral acres. Buyers quote prices per NMA, or per net royalty acre once the lease royalty is factored in, because a 1/4 royalty lease pays twice what a 1/8 lease pays on the same dirt. The royalty decimal calculator turns NMA into the decimal on your check, and runs it backward when the decimal is all you have.
That is normal, and it is a title question, not a math question. Send what you have through the paperwork review or the free valuation form and we will run it at no cost. All thirteen tools live on the calculators page.
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