Sell Your Fremont County, Wyoming Mineral Rights for Cash
Selling My Mineral Rights buys mineral rights, oil and gas rights and royalty interests across Fremont County, from Lander and Riverton to Shoshoni, Dubois and Hudson. Send your legal description or a royalty statement and get a written offer in 3 to 5 business days.
We buy producing gas and oil royalties, unleased minerals, overriding royalties and inherited fractions. No commissions, no fees, and if your family’s minerals lie within the Wind River Reservation, we explain first whether they are fee or trust minerals.
Call or Text Us: 347-345-4547
MINERAL RIGHTS & ROYALTIES
What could your mineral rights be worth?
Tell us a little about your interest. Get a free, no-obligation review from Selling My Mineral Rights.
Quick answer: We buy gas and oil royalties, unleased minerals and inherited interests across Fremont County and the Wind River Basin. A written offer usually follows within 3–5 business days, with no fees or commissions.
Free, no-obligation review: Selling My Mineral Rights evaluates producing and non-producing mineral rights, royalty interests, and inherited or fractional interests in Fremont County, Wyoming. You can request an offer without paying fees or committing to sell.
Fremont County Gas Comes Mostly From One Deep Field
Fremont County reported about 63 billion cubic feet of gas in 2025, about 5% of Wyoming’s total and sixth in the state, along with about 2.2 million barrels of oil. Most of that gas, about 85%, came from the Madison formation at the Madden field, a reservoir about 25,000 feet down whose gas is roughly 12% hydrogen sulfide and 21% carbon dioxide and must be processed at the Lost Cabin plant. Commission records still list Contango Resources as Madden’s operator, but the field and the plant were sold to Aethel Energy in 2025. County gas output fell about 17% in 2025 and was down further in the first half of 2026, so recent statements may not reflect what the wells produced a few years ago.
Fremont County is also where Wyoming’s oil industry began: the Mike Murphy No. 1 at Dallas Dome near Lander, completed in 1884, was the state’s first commercial oil well. Today the oil comes from older fields such as Beaver Creek, Big Sand Draw and Riverton Dome, producing mainly from the Tensleep, Madison and Phosphoria, with Denbury Onshore, now part of ExxonMobil, among the operators of record, alongside Aethon, Adamas, Wesco, Merit and Citation.
Much of the county lies within the Wind River Indian Reservation, more than 2.2 million acres that are home to the Eastern Shoshone and Northern Arapaho tribes, who have been in the oil and gas business since 1891. Tribal and allotted trust minerals are leased and paid through federal agencies, the Bureau of Indian Affairs, the Bureau of Land Management and the Office of Natural Resources Revenue, and they cannot be bought and sold like private minerals. Fee minerals are a different matter, and not all land inside the original boundary is reservation land: in 2017 the Tenth Circuit held that land opened by a 1905 act of Congress, including the city of Riverton, is no longer part of the reservation, and the Supreme Court declined to review it in 2018. The first question on any Fremont County interest is which kind it is.
New development has been approved nearby. In 2020 the Bureau of Land Management authorized the Moneta Divide project for up to 4,250 wells on about 327,645 acres administered by its Lander and Casper field offices; Aethon, one of its proponents, is among Fremont County’s current operators.
What We Check on a Fremont County Interest
- Whether the minerals are fee, federal, or tribal and allotted trust minerals within the Wind River Reservation.
- Chain of title in the Fremont County Clerk’s records in Lander.
- Which field and formation each well produces from, and recent production trends.
- Deductions measured against the Royalty Payment Act, especially for deep Madison gas that requires processing.
- Federal tracts and communitization agreements in the unit.
- Your decimal, the current operator, and any royalty held in escrow.
Where Fremont County Mineral Records Are Kept
The Fremont County Clerk at 450 North 2nd Street, Room 220, in Lander records deeds, leases and assignments for fee lands. Well, production and pooling records are held by the Wyoming Oil and Gas Conservation Commission in Casper. Trust minerals on the Wind River Reservation are tracked through federal records rather than the county clerk alone.
Fremont County, Wyoming Mineral Rights FAQs
Can I sell my oil and gas rights in Fremont County, Wyoming?
Yes. Whether you want to sell your oil rights, sell your gas rights, or sell your oil and gas royalty rights together, in Fremont County they are all mineral or royalty interests, and we buy them for cash. That includes the full mineral estate, overriding royalties, unleased acreage and fractional shares inherited from family. If your deed or lease covers only certain depths or formations, we value exactly what you own.
How much are my mineral rights worth in Fremont County?
It depends on whether the interest is in the Madden gas field or one of the older oil fields, how the wells have performed recently, and your lease and decimal. Fremont County gas production has fallen since 2024, so we value your interest on current and projected production, not past peaks.
Our family’s minerals are on the Wind River Reservation. Can we sell them?
It depends on whether they are fee minerals or trust minerals. Tribal and allotted trust minerals are supervised by federal agencies and cannot be bought and sold like private minerals. Fee minerals within the reservation boundary can be reviewed like any other private interest, and we will tell you which you have.
What is the Madden field?
It is a deep gas field producing from the Madison formation, about 25,000 feet down, and the source of about 85% of Fremont County’s gas in 2025. Its sour gas is processed at the Lost Cabin plant. Commission records still show Contango Resources as operator, but Aethel Energy acquired Madden and Lost Cabin in 2025.
Who operates the old oil fields around Riverton?
Commission records list Denbury Onshore, which ExxonMobil acquired in 2023, at Beaver Creek, Big Sand Draw and Riverton Dome, along with several smaller operators elsewhere in the county. If your check still shows an older company name, the account usually transferred with the field.
Are there fees to get an offer?
No. There is no broker commission, appraisal fee or listing expense, and we pay the recording fee and the cost of preparing the mineral deed.
Get a Free, No-Obligation Offer
Send a legal description, a check stub or a division order. We will confirm whether the minerals are fee, federal or trust, identify the wells affecting the tract, and provide a written cash offer when the interest is marketable.
Records and Sources We Use
We use records filed with the Fremont County Clerk, well and production records from the Wyoming Oil and Gas Conservation Commission, including its county production data, and federal records for reservation and federal minerals. Reservation background comes from Eastern Shoshone testimony to Congress (2012), and project details from the Bureau of Land Management.
Last reviewed October 2026. Sources: WOGCC well-level production data, 2025 and 2026, summed by county and field; BLM Moneta Divide record of decision (2020); Office of Natural Resources Revenue. This page provides general information, not legal or tax advice. A qualified Wyoming attorney or CPA should advise you about your facts.
Header photo: Michael Rygel via Wikimedia Commons, CC BY-SA 4.0.
Related Wyoming Mineral Rights Guides
Mineral ownership, title history and drilling patterns often continue across county lines. These related guides provide useful comparisons:
- Sell Wyoming mineral rights — pooling rules, the Royalty Payment Act, taxes and the selling process.
- Sublette County, Wyoming mineral rights — Pinedale and Jonah tight-gas royalties in the Lance formation.
- Sweetwater County, Wyoming mineral rights — Wyoming’s second gas county, with checkerboard title along I-80.
- Carbon County, Wyoming mineral rights — Gas, a CO2-flood oil field and checkerboard minerals around Rawlins.
- Up 71%, Down 35%: What Wyoming’s 2025 Production Swings Mean for Royalty Owners
Why Mineral Owners Contact Us
No Fees or Commissions
There is no cost to request an offer, and we cover normal closing costs.
A Simple Process
Share the information you have. We research the interest and explain the offer clearly.
No Obligation
You decide whether selling fits your goals. There is no pressure to accept.
How the Offer Process Works
- Tell us about your mineral rights. Send the owner name, county, and any lease, well, or royalty information you have.
- We review the interest. Our team researches ownership, production, and nearby activity.
- Receive a cash offer. We explain the offer and answer your questions.
- Choose what works for you. If you accept, we coordinate the paperwork and closing.
Get Your Free Fremont County Offer
Tell us a little about your interest. We’ll get back to you within 1–2 business days with a free, no-obligation review.
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