How Minerals Are Appraised

Appraising a mineral interest is not one method. Producing and undeveloped acreage get evaluated differently, and knowing which applies to your situation explains why numbers vary the way they do.

We are a buying desk, not a licensed appraiser, and nothing here substitutes for a certified appraisal, which some owners need for estate, gifting, or litigation purposes rather than a sale. This is a plain description of the methods that underlie most mineral valuations, Permian or otherwise, so you understand the reasoning behind any number you receive, from us or anyone else.

Discounted cash flow, for producing interests

This is the primary method for a producing interest: project the future royalty stream based on the well's decline curve, discount those future payments back to a present value using a discount rate that reflects the risk and time value involved, and sum the result. The decline curve itself is built from actual production history, typically pulled from Railroad Commission of Texas records for the specific lease or unit, not a generic type curve. Two wells with identical current output but different histories, one six months old and steeply declining, one eight years old and flattened out, produce very different discounted cash flow results even though this month's check might look similar.

Comparable sales and lease data, for undeveloped acreage

Undeveloped acreage has no production history to discount, so valuation leans on comparable transactions: recent mineral sales, lease bonus amounts paid, and permitting activity on nearby tracts within the same spacing unit or play trend. An operator's visible development pattern, where recent permits are clustered and how close they sit to your acreage, feeds directly into how strong a comparable-based estimate looks. This method is inherently softer than discounted cash flow, since it is estimating drilling likelihood rather than modeling an existing production stream, which is part of why undeveloped acreage carries wider valuation ranges.

Why the discount rate and decline assumptions matter so much

Small changes in discount rate or decline rate assumptions can move a discounted cash flow result meaningfully, since they compound over the projected life of the well. This is one reason two buyers can look at the same production history and arrive at different numbers without either one being dishonest: they are applying different, both defensible, assumptions about future decline behavior and risk. Asking a buyer what discount rate and decline assumptions they used is a fair, useful question.

When you need a certified appraisal instead of a buyer's estimate

Estate tax filings, gifting between family members, litigation, and some divorce proceedings typically require a certified appraisal from a licensed petroleum engineer or a credentialed mineral appraiser, not a buyer's internal valuation. Our review is built for pricing a potential purchase, and it is not a substitute for that certified work. If your situation calls for a formal appraisal, we say so directly and point you toward that kind of professional rather than offering our own estimate as a stand-in.

How offset operator activity gets weighted in practice

For both discounted cash flow and comparable-based methods, offset operator activity is one of the more heavily weighted inputs, and it is read differently across the Permian's active operators. Diamondback and Permian Resources have historically run tight, contiguous development programs in parts of the Midland side, which tends to produce more predictable offset patterns to model against. Delaware-focused operators running multi-bench stacked development can generate a more complex, but often more valuable, offset picture, since a single permitted unit may signal upside across more than one target formation. Reading which pattern applies to a specific tract is part of why generic countywide estimates miss the mark so often.

Sensitivity to commodity price assumptions

Every method described here is sensitive to the commodity price deck used in the underlying projection, whether that is current spot pricing, a strip curve, or a longer-run flat assumption. A valuation built on an aggressive price assumption will read higher than one built conservatively, even with identical production or offset data. Asking what price deck a buyer used, alongside the discount rate and decline assumptions, rounds out the questions worth asking before comparing two valuations against each other.