Sell Bighorn Basin mineral rights and royalties
Bighorn Basin spans Wyoming and Montana. Here is what interests there are worth, the value bands by type, and how to sell directly to a buyer with no commission. Every figure is an estimate subject to verification of your specific interest.
Last updated June 2026.
What are Bighorn Basin mineral rights worth?
Producing Bighorn Basin minerals are typically worth 36 to 72 times your average monthly royalty check, the same income multiple used across the industry. The Bighorn is a mature, conventional oil basin, so value rests on existing production from long-lived fields rather than on new drilling. As a general industry rule of thumb, producing royalties tend to trade somewhere in the range of 36 to 72 times the average monthly royalty check, with steady, long-declining conventional oil interests often supporting a middle portion of that band. This is an estimate, not an offer, and any real figure depends on verifying your net mineral acres, decimal interest, and recorded title. Wyoming and Montana lease terms differ, so per-acre revenue is interest-specific and should be confirmed against your actual statements.
The Bighorn Basin spans northwest Wyoming and reaches into south-central Montana. On the Wyoming side it covers Park, Hot Springs, Big Horn, and Washakie counties, and on the Montana side Carbon and Big Horn counties, including the long-producing Elk Basin field that straddles the state line. It is primarily a conventional oil basin, with production from formations such as the Tensleep Sandstone, the Phosphoria, and the deep Madison Limestone, often trapped in large surface anticlines that made the basin an early target in the history of Rocky Mountain oil. Many of these fields have produced for a very long time and are now mature, with much of their output supported by secondary recovery like waterflooding. The basin is oil-weighted and well past its peak, so for mineral owners it generally means seasoned producing conventional oil interests with long, slow declines rather than a frontier of new horizontal drilling.
Bighorn Basin value bands
Reference ranges for Wyoming and Montana, all estimates subject to verification:
- Producing royalties, conventional oil: 36 to 72x average monthly royalty (Cross-firm income multiple, directional; long-life oil often mid band)
- Undeveloped upside: limited, mature basin (Old conventional fields on secondary recovery; directional, not guaranteed)
- Non-producing, leased: 2 to 3x the most recent lease bonus (Directional marketing claim, not a hard number)
These are starting points, not offers. Where your interest actually lands depends on your decline curve, undeveloped upside, operator, royalty rate, and title. The fastest way to see your own number is to run the free estimator.
Counties and parishes we buy in Wyoming, Montana
We buy mineral and royalty interests across the Bighorn Basin. Choose your county or parish for local value context and the questions owners there ask most.
Why owners in the Bighorn Basin sell
Most owners who sell are not in distress. They want certainty instead of a check that rises and falls with commodity prices and well decline, they are settling an estate among several heirs, or they live far from the basin and would rather hold cash than manage a fractional interest. Selling trades future income for a sum now, and the right answer depends entirely on your situation. We will tell you honestly when holding is the better move.
How to sell Bighorn Basin minerals the right way
Know your range before you talk to any buyer, ask every buyer to quote per net royalty acre so offers are comparable, and ask directly whether the offer accounts for undeveloped drilling upside. For the full walkthrough, see how to sell mineral rights, and if you inherited the interest, start with our guide for heirs.
Bighorn Basin questions, answered plainly
- How much are Bighorn Basin mineral rights worth?
- Producing Bighorn Basin minerals are valued on a multiple of your royalty income, roughly 36 to 72 times your average monthly check. The Bighorn is a mature, conventional oil basin, so value rests on existing production from long-lived fields rather than on new drilling. As a general industry rule of thumb, producing royalties tend to trade somewhere in the range of 36 to 72 times the average monthly royalty check, with steady, long-declining conventional oil interests often supporting a middle portion of that band. This is an estimate, not an offer, and any real figure depends on verifying your net mineral acres, decimal interest, and recorded title. Wyoming and Montana lease terms differ, so per-acre revenue is interest-specific and should be confirmed against your actual statements.
- Who buys Bighorn Basin mineral rights and royalties?
- Ironwood Royalty buys Bighorn Basin mineral and royalty interests directly from owners as a principal buyer, so the offer comes from us and no broker commission is taken from your proceeds. We show an honest value range before asking for anything.
- How fast can I sell Bighorn Basin minerals?
- A clean, single-owner producing interest commonly closes in 15 to 30 days, with a written offer in 1 to 3 business days. Multi-heir or unrecorded title can take 60 to 90 days while the chain of title is cleared.
See what your Bighorn Basin minerals could be worth
Run a free estimate for an honest on-screen range, then talk it through with a real person. An estimate, not an offer, and no pressure.