State law reference
Abandoned Mineral Rights in Colorado
What happens to abandoned mineral rights in Colorado? No Colorado statute was found that ends a severed mineral interest for nonuse, and no marketable record title act was found.
Core rule cited Researched and checked by American Mineral Registry against the official text; review completed October 1, 2026. Reference research, not legal advice.
- Rule type
- Tax or work forfeiture
- Period
- See rule
- Ends without a surface owner step
- No
- Preservation filing
- See rule
- Forced pooling statute
- Statute found
Official text cited - Surface damages statute
- Statute found
Core rule cited - Deceased or unlocated owner
- Partly checked
How the rule works
No nonuse lapse found; severed mineral interests can be lost through a property tax lien sale. No Colorado statute was found that ends a severed mineral interest for nonuse, and no marketable record title act was found. The mineral specific route is tax based: a surface owner may require the county assessor to put a severed mineral interest on the tax roll (C.R.S. 39-1-104.5), and if the taxes go delinquent the tax lien is sold, with a right of first refusal for the surface owner whose surface is coterminous with the mineral interest (C.R.S. 39-11-150). An unredeemed lien can lead to a treasurer's deed. Paying the taxes avoids this route; nonuse alone does nothing.
What has to happen
Assessment of the severed interest (a surface owner can force placement on the roll with a title certificate under 39-1-104.5), tax delinquency, treasurer's tax lien sale with at least ten days mailed notice to a coterminous surface owner who may buy the lien or pay the delinquent taxes (39-11-150), then a treasurer's deed if the lien is not redeemed. An action to recover a severed mineral interest after a tax deed is limited to the period in 39-12-101 (five years after the deed).
What counts as use or preserves the interest
Paying the property taxes levied on the severed mineral interest, which prevents delinquency (inference from the tax sale structure, not a listed saving event)
Scope
- Interests covered
- Severed mineral interests carried on the county tax roll. The right of first refusal applies only where the surface estate ownership is coterminous with the severed mineral interest.
- Minerals covered
- Any severed mineral interest. Valuation of severed nonproducing oil and gas interests is set by C.R.S. 39-7-109 (income approach using lease rentals, or average area rentals if unleased).
- Exceptions
Surface owner first refusal only where surface ownership is coterminous with the severed mineral interest (39-11-150)
- Enactment and amendments
- 39-1-104.5 added L. 79, effective July 1 (1979), amended L. 83, effective May 16. 39-11-150 from L. 73, amended L. 85, effective July 1. 39-11-120 amended by HB 24-1056, effective July 1, 2024. SB 26-044 (2026), which would have let counties cancel taxes on severed mineral accounts after 5 years and convey the liens, was postponed indefinitely on March 24, 2026 and is Lost.
Dates and what they mean
A date cannot be computed for Colorado from a last use date alone; the note below explains what the rule turns on. The rule finder shows the same explanation.
Loss depends on tax delinquency, a lien sale and a deed, not on time since last use. A calculator cannot compute a lapse date from a last use date.
Deceased or unlocated owner
Partly checked What the law of Colorado says when the owner of record has died, is unknown, or cannot be found. It sets out the questions; it does not decide who owns an interest, whether a notice was valid, or whether an interest ended.
Why only partly checked. How the 2024 tax lien search rule applies to a deceased owner of record is open, and no statewide search outside titles 34, 38 and 39 was made.
No Colorado statute ends a severed mineral interest for nonuse, so the provisions read contain no dormancy notice to a deceased, unknown or unlocated owner. The mineral specific route is tax based: a surface owner can have a severed interest put on the tax roll, and if taxes go unpaid the lien is sold with a surface owner right of first refusal; since July 1, 2024 deeds issue under article 11.5, which mails notice to known interested parties, publishes, and requires a reasonable search for the owner of record only if mail is returned. The oil and gas statutes treat unlocated owners in two narrow ways: they are excluded from the pooling consent calculation, and payment deadlines are suspended while the payer doubts a payee's identity or whereabouts. No court trust or receivership for missing mineral owners was found.
- Owner of record has died
- Not addressed in the provisions read.
- Current owner unknown
- Payment deadlines suspended for reasonable doubt as to the payee's identity (34-60-118.5(3)(a)(II)); otherwise not addressed.
- Owner known but cannot be found
- Excluded from the pooling consent calculation (34-60-116(6)(b)(I.7)); payment deadlines suspended (34-60-118.5(3)(a)(II)); in a tax deed process, a reasonable search for the owner of record if mail is returned (39-11.5-104(7)).
How the nonuse rule treats these owners Statute
No nonuse mechanism; the tax roll and tax lien route for severed minerals, with deeds since July 1, 2024 under article 11.5.
Statute
A surface owner may require the assessor to put a severed mineral interest on the county tax roll. C.R.S. 39-1-104.5
“Any owner of the surface estate from which a mineral interest has been severed, on behalf of himself and any other owners of such interest in the surface, may require the assessor of the county wherein such real estate is situate to place such severed mineral interest, without regard to value, on the tax roll of the county”
Scope: Severed mineral interests. Nonuse alone ends nothing; this is a tax route, not a dormancy statute.
Tax liens on severed mineral interests are sold like other tax liens, with a right of first refusal for the coterminous surface owner. C.R.S. 39-11-150
“where the surface estate ownership is coterminous with the severed mineral interest, the owner of the surface estate shall have the right of first refusal to purchase the tax lien on the severed mineral interest”
Scope: Delinquent taxes on severed mineral interests. The treasurer notifies the surface owner by mail of the right of first refusal; the section says nothing about notice to the mineral owner.
Since July 1, 2024, tax deed issuance follows article 11.5 rather than article 11. C.R.S. 39-11-153
“on or after July 1, 2024, a purchaser, lawful holder, or treasurer shall follow the procedures established in article 11.5 of this title 39 and shall not follow the procedures established in this article 11 concerning the issuance of a deed.”
Scope: All tax lien deeds, including on severed mineral interests as the text reads. The earlier notice rule in 39-11-128 is limited to "Before July 1, 2024".
Heirs, devisees and successors Not addressed in the provisions read
The provisions read do not address heirs, devisees or successors of a mineral owner.
Search required to find the owner Statute
Reasonable search for the owner of record when a tax deed notice is returned undeliverable.
Statute
If a notice is returned undeliverable, the treasurer must conduct a reasonable search to locate and notify the owner of record. C.R.S. 39-11.5-104(7)
“If any notice sent pursuant to this section is returned as undeliverable, the county treasurer shall conduct a reasonable search to locate and notify the property owner of record.”
Scope: General property tax procedure, not mineral specific; reached for severed minerals through 39-11-150 and 39-11-153. Owner of record only; reasonable search is not defined and heirs are not mentioned.
Who gets notice, and how Statute
Known interested party notice mailed to the treasurer's mailing list after a title search or record review.
Statute
After a title search or record review, the treasurer mails a known interested party notice to everyone on the mailing list. C.R.S. 39-11.5-104(2)
“the treasurer shall create a mailing list, mail a known interested party notice to the persons on the mailing list, and add the first and last publication dates, if not already specified in the known interested party notice, on the treasurer's office website.”
Scope: General property tax procedure, not mineral specific; reached for severed minerals through 39-11-150 and 39-11-153. The mailing list (39-11.5-102(9)) includes lienors, the occupant and, if different, the property owner; heirs are not mentioned.
Notice by publication Statute
Three week publication where assessed valuation is five hundred dollars or more, regardless of whether the owner is located.
Statute
The known interested party notice is published for three weeks where the assessed valuation is five hundred dollars or more. C.R.S. 39-11.5-104(6)
“if the valuation for assessment of the property that is the subject of the public auction is five hundred dollars or more, the treasurer shall commence publication of the known interested party notice for three weeks”
Scope: General property tax procedure, not mineral specific; reached for severed minerals through 39-11-150 and 39-11-153. Publication is in addition to mailing and posting; it is not conditioned on the owner being unlocated.
How the owner responds or preserves Statute
Redemption before the public auction cancels it; redemption terms not reviewed.
Statute
If the tax lien is redeemed before the public auction, the auction is cancelled. C.R.S. 39-11.5-106(4)
“If the tax lien is redeemed prior to the public auction, the treasurer shall: (a) Cancel the public auction;”
Scope: General property tax procedure, not mineral specific; reached for severed minerals through 39-11-150 and 39-11-153. Who may redeem and on what terms is governed by redemption provisions not read.
Court, receivership or trust for missing owners Statute
No court trust, receivership or escrow for missing mineral owners found. Two oil and gas provisions treat unlocated owners: pooling calculation exclusion and suspension of payment deadlines.
Statute
In statutory pooling, interests of owners who cannot be located through reasonable diligence are left out of the forty five percent consent calculation. C.R.S. 34-60-116(6)(b)(I.7)
“Mineral interests that are owned by a person that cannot be located through reasonable diligence are excluded from the calculation described in subsection (6)(b)(I) of this section.”
Scope: Pooling applications before the Energy and Carbon Management Commission. Not a title ending mechanism.
Payment deadlines for production proceeds are suspended while the payer has reasonable doubt about the payee's identity or whereabouts. C.R.S. 34-60-118.5(3)(a)(II)
“(II) A reasonable doubt by the payer as to the payee's identity, whereabouts, or clear title to an interest in proceeds; or”
Scope: Introduced by 34-60-118.5(3)(a): compliance with payment deadlines is suspended when payments are withheld for these reasons. No escrow or trust is required by the text read.
What a title review must establish
- Is the severed mineral interest on the tax roll, and has a tax lien been sold or a treasurer's deed issued (mechanism)?
- For a tax deed after July 1, 2024, was the owner of record on the mailing list, and was a reasonable search made for returned notices (notice, search)?
- Is any owner treated as unlocated in a pooling order or in suspended proceeds (special_mechanism)?
- If the record owner is deceased, how title passed, which these provisions do not address (succession).
Dates. 39-11-153: article 11 deed procedures are not followed 'on or after July 1, 2024'. Article 11.5 notice periods: mailing within 'thirty calendar days' after recording the application and 'twenty calendar days' after the title search; posting and publication 'no more than sixty calendar days nor less than forty-five calendar days prior to the public auction'; publication 'for three weeks' (39-11.5-104). Surface owner right of first refusal notice 'at least ten days prior to the sale', exercisable 'until two days prior to the sale' (39-11-150). None of these is a nonuse period, and none is tied to an owner's death. The rule finder does not calculate this period.
What AMR searched. Read: C.R.S. 39-1-104.5, 39-11-128, 39-11-150, 39-11-153, 39-11.5-102 (definitions of known interested party notice and mailing list), 39-11.5-103, 39-11.5-104, 39-11.5-106(4), 34-60-116(6), 34-60-118.5(1) to (5) (CRS 2024 title PDFs via Internet Archive; official host was not available). Titles 34 and 38 full text searched for unknown, unlocat, whereabouts, cannot be located, missing owner, absent; title 38 matches were general quiet title and unknown defendant provisions, not mineral specific and not reviewed. The October 2026 review's findings that no dormancy or marketable record title act exists and that SB26-044 failed were not re-read. Not reviewed: redemption provisions in article 12 of title 39, probate, quiet title, unclaimed property. No Colorado case law searched for, since no owner status mechanism specific to minerals was found. A point marked not addressed means only that the provisions read do not address it; probate, quiet title and other general procedures may still apply and were not reviewed.
Not settled by this review.
Whether the article 11.5 procedure (2024) applies in full to tax liens on severed mineral interests sold under 39-11-150, and how a reasonable search under 39-11.5-104(7) applies to a deceased owner of record.
Whether any Colorado statute outside titles 34, 38 and 39 provides a trust or receiver for missing mineral owners.
Checked October 6, 2026. Also in the dormant mineral rule finder.
Forced pooling
Official text cited Yes. Under C.R.S. 34-60-116(6)(b) the commission (now the Energy and Carbon Management Commission) may, after notice and hearing, pool all interests in a drilling unit on application of a person that owns or has the consent of owners of more than 45 percent of the mineral interests to be pooled. An unleased owner cannot be pooled over protest without a reasonable good faith lease offer made at least 60 days before the hearing, and an unleased nonconsenting owner is deemed to hold a 13 percent (gas) or 16 percent (oil) royalty until costs are recovered.
Surface damages
Core rule cited Colorado has surface owner protections in the Oil and Gas Conservation Act, though not a stand alone surface damage act: operators must give the surface owner written notice of drilling at least 30 days ahead (34-60-106(14)), the commission must require security to protect a surface owner who was not a party to the lease from unreasonable crop losses or land damage (34-60-106(3.5)), and an operator who fails to accommodate the surface owner faces a cause of action for compensatory damages (34-60-127).
Taxes
Broad personal income tax: yes. Nonresidents owe Colorado tax on income derived from Colorado sources, the Department lists rents and royalties from real and tangible personal property located in Colorado as Colorado source income, and part-year residents are taxed on all income from their period of Colorado residency. Core rule cited Source and notes.
Severance or production tax. Graduated 2 to 5 percent of gross income, with a stripper well exemption and a credit for local property tax, plus a commission charge and two production fees. Core rule cited Full record: rates, exemptions, royalty owner share and sources.
Not tax advice. Rates change and the cited source controls.
Sources for the dormant mineral rule
Each source was read on the date shown. Where an official site was not available, the official page was read through a dated Internet Archive copy and that is stated.
- C.R.S. 39-11-150
“where the surface estate ownership is coterminous with the severed mineral interest, the owner of the surface estate shall have the right of first refusal to purchase the tax lien on the severed mineral interest”
- C.R.S. 39-1-104.5
“Any owner of the surface estate from which a mineral interest has been severed, on behalf of himself and any other owners of such interest in the surface, may require the assessor of the county wherein such real estate is situate to place such severed mineral interest, without regard to value, on the tax roll of the county”
- C.R.S. 39-11-120(1)
“Before July 1, 2024, any time after the expiration of the term of three years from the date of the sale of any tax lien on any land, or interest therein or improvements thereon, for delinquent taxes”
- C.R.S. title 38, article 42 (38-42-101 to 38-42-106), survey
“When any oil, gas, or other mineral lease given on land situated in any county of Colorado and recorded therein becomes forfeited or expires by its own terms, it is the duty of the lessee”
- C.R.S. 24-65.5-103(3)
“A mineral estate owner who requests or desires to obtain notice under this article or the mineral estate owner's agent may file in the office of the county clerk and recorder of the county in which the real property is located a request for notification form”
- SB26-044, 2026 Regular Session, bill record (not enacted, Lost March 24, 2026)
“The bill authorizes a board of county commissioners to cancel any taxes that have been levied on a severed mineral account 5 years after the date the taxes become delinquent.”
Open questions for a specialist
This review did not settle these points. They are where a Colorado title attorney or landman should look first.
Amendments after the 2024 edition of the C.R.S. (2025 and 2026 sessions) were not checked, except SB 26-044, which was lost.
HB 24-1056 changed the treasurer's deed procedure from July 1, 2024; what now follows an unredeemed lien on a severed mineral interest under the current 39-11-120 was not checked.
Redemption rules (article 12 of title 39) were not read.
How often county assessors carry unleased severed mineral interests on the roll, and at what value under 39-7-109, is not known.
Case law on adverse possession (38-41-101, eighteen years) against severed mineral estates was not reviewed.
Common questions
Can mineral rights lapse in Colorado?
Not through nonuse alone. Colorado has no dormant mineral statute, but an interest can be lost through unpaid taxes or a failure to work it, under the procedure its statute sets. The details are under How the rule works.
Does Colorado allow forced pooling?
Yes. Colorado has a forced pooling statute, summarized with its citation under Forced pooling above.
Does Colorado require payment for surface damage?
Yes. Colorado has a statute requiring operators to compensate surface owners, summarized with its citation under Surface damages above.
What changed
The June 2026 edition listed Colorado as Does not lapse, lapse period none. Release 2026.10 replaced that entry with the reviewed rule above, and retired the June risk score and ranking for every state. Release 2026.10.1 added the deceased or unlocated owner section. See all changes.
Cite this page
American Mineral Registry. "Abandoned Mineral Rights in Colorado." U.S. Mineral Rights Law Atlas, release 2026.10.1, October 6, 2026. https:// americanmineralregistry.com/ research/ states/ abandoned-mineral-rights-colorado
[Abandoned Mineral Rights in Colorado](https:// americanmineralregistry.com/ research/ states/ abandoned-mineral-rights-colorado), U.S. Mineral Rights Law Atlas, American Mineral Registry, release 2026.10.1 (2026-10-06).
<a href="https:// americanmineralregistry.com/ research/ states/ abandoned-mineral-rights-colorado">Abandoned Mineral Rights in Colorado</ a>, U.S. Mineral Rights Law Atlas, American Mineral Registry, release 2026.10.1 (2026-10-06).
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title = {Abandoned Mineral Rights in Colorado},
howpublished = {U.S. Mineral Rights Law Atlas, release 2026.10.1},
date = {2026-10-06},
url = {https://americanmineralregistry.com/research/states/abandoned-mineral-rights-colorado}
} TY - ELEC AU - American Mineral Registry TI - Abandoned Mineral Rights in Colorado T2 - U.S. Mineral Rights Law Atlas ET - 2026.10.1 DA - 2026/10/ 06 UR - https:/ / americanmineralregistry.com/ research/ states/ abandoned-mineral-rights-colorado ER -
General information about statutes, not legal advice and not a title opinion. Facts about a specific interest decide the outcome. Published by American Mineral Registry, which also runs a commercial service for owners; see how the two relate.