How to Identify a Like-Kind Replacement Property for a 1031 Exchange into Mineral Interests

By Richard Partin, Managing Member, Texas State Royalties LLC Fort Worth, Texas | Published: October 2, 2026 | Last Updated: October 16, 2026

The 45-day identification window is one of the most consequential deadlines in a 1031 exchange. Miss it, and the entire exchange fails — your proceeds become taxable, and the capital gains deferral you were counting on disappears. For investors considering a 1031 exchange into mineral interests, understanding what qualifies as like-kind replacement property — and how to identify it correctly — is essential before your relinquished property closes.

---

Quick Answer: Mineral interests qualify as like-kind replacement property for a 1031 exchange under IRS Publication 535 and IRC § 1031 because they are real property under Texas Property Code § 1.002. The 45-day identification window begins the day your relinquished property closes. Identification must be specific — legal description, county, operator or well name, and interest type — submitted in writing to your Qualified Intermediary before the deadline. Start sourcing before your relinquished property closes; mineral interests are not listed on public marketplaces.

---

What Makes a Property "Like-Kind" for a 1031 Exchange?

Under IRC § 1031 and IRS Publication 535, "like-kind" refers to the nature or character of the property, not its grade or quality. For real property held for investment or productive use in a trade or business, the like-kind standard is broad: most real property qualifies as like-kind to most other real property.

Mineral interests — including royalty interests, working interests, overriding royalty interests, and net profits interests — are classified as real property under Texas Property Code § 1.002 and under Texas Natural Resources Code. This means a mineral interest qualifies as like-kind replacement property for:

• Rental real estate (residential or commercial)
• Raw land or farmland
• Other mineral interests
• Net leased commercial property
• Industrial or warehouse property

The key requirement is that both the relinquished property and the replacement property must be held for investment or productive use in a trade or business — not for personal use. A primary residence does not qualify. A vacation home used primarily for personal use does not qualify. A mineral interest held for royalty income qualifies.

How Does the 45-Day Identification Window Work?

The 45-day identification window begins on the day your relinquished property closes — not when you sign the contract, not when you engage your Qualified Intermediary, but the day the deed transfers and the proceeds go to the QI. You have exactly 45 calendar days from that date to formally identify your replacement property in writing.

The identification must be delivered to your Qualified Intermediary — not to the seller, not to your attorney, and not to yourself. It must be in writing, signed, and received by the QI before midnight on the 45th day. There are no extensions. There are no exceptions for weekends or holidays. If the 45th day falls on a Saturday, your identification is due that Saturday.

The identification must be specific enough to unambiguously identify the replacement property. For a mineral interest, this means:

• The legal description of the acreage (section, township, range, or survey name and abstract number)
• The county and state
• The operator or well name, if applicable
• The type of interest being acquired (royalty interest, working interest, ORRI, etc.)
• The fractional interest or decimal interest being acquired

A vague identification — "mineral interests in Comanche County, Texas" — is not sufficient. The IRS requires that the identification be specific enough that a third party could identify the property without additional information from you.

What Are the Identification Rules?

There are three identification rules under IRC § 1031. You must comply with at least one of them.

The Three-Property Rule. You may identify up to three replacement properties regardless of their combined fair market value. This is the simplest and most commonly used rule. Most exchangers use the Three-Property Rule because it provides flexibility without requiring a valuation analysis.

The 200% Rule. You may identify any number of replacement properties, provided their combined fair market value does not exceed 200% of the fair market value of the relinquished property. This rule is useful when you want to identify more than three properties but need to stay within a value cap.

The 95% Rule. You may identify any number of replacement properties regardless of combined value, provided you acquire at least 95% of the aggregate fair market value of all identified properties. This rule is rarely used in practice because it requires acquiring nearly everything you identified.

For most mineral interest exchanges, the Three-Property Rule is the right choice. Identify up to three specific mineral interests, close on one or more of them within the 180-day window, and the exchange is complete.

Why You Must Start Sourcing Before Your Relinquished Property Closes

The most common mistake in a 1031 exchange into mineral interests is waiting until after the relinquished property closes to start looking for replacement property. With only 45 days to identify and 180 days to close, there is no time to start from scratch.

Mineral interests are not listed on public marketplaces. They do not appear on Zillow, LoopNet, or any centralized listing database. The highest-quality producing interests in Texas trade off-market, through established industry relationships and direct owner outreach. Sourcing a suitable replacement property — one with verified production history, clean title, and a price that makes sense for your exchange — takes time.

Cross-reference production history against Texas Railroad Commission (RRC) records before making any identification. The RRC maintains production and well records for all Texas oil and gas wells. A seller's summary of production history should always be verified against RRC data — discrepancies between seller summaries and RRC records are common and almost always favor the seller.

The Texas Comptroller imposes severance tax at 4.6% on oil and 7.5% on gas. Qualifying mineral owners may deduct percentage depletion at 15% of gross income under IRS Publication 535. Reserve classifications follow SEC Regulation S-X Rule 4-10.

Under Texas Estates Code, mineral interests held individually pass through probate at death. Unestablished heirship is the most common title defect in Comanche and Eastland County acquisitions — a title opinion from a licensed Texas oil and gas attorney is required before closing on any replacement property.

Texas State Royalties works exclusively with buyers and maintains established relationships with mineral owners across active Texas producing regions. Start Your Buyer Search or review our acquisition services to learn how we source replacement property for 1031 exchange buyers.

---

Key Takeaways

• Mineral interests are real property under Texas Property Code § 1.002 and qualify as like-kind replacement property for a wide range of relinquished assets — rental real estate, raw land, and other mineral interests — under IRS Publication 535 and IRC § 1031
• The 45-day identification window begins the day your relinquished property closes; identification must be in writing, signed, and delivered to your Qualified Intermediary before midnight on the 45th day — there are no extensions for weekends or holidays
• Identification must be specific: legal description, county and state, operator or well name, interest type, and fractional or decimal interest — a vague identification is not sufficient and will fail IRS scrutiny
• The Three-Property Rule allows identification of up to three replacement properties regardless of combined value — the simplest and most commonly used identification method for mineral interest exchanges
• Start sourcing before your relinquished property closes; mineral interests trade off-market and require direct sourcing through industry relationships — waiting until after closing puts you at serious risk of missing the 45-day deadline
• Cross-reference production history against Texas Railroad Commission (RRC) records before identifying any replacement property; the Texas Comptroller imposes severance tax at 4.6% on oil and 7.5% on gas; reserve classifications follow SEC Regulation S-X Rule 4-10
• Under Texas Natural Resources Code, the mineral estate is the dominant estate; under Texas Estates Code, interests held individually pass through probate at death — unestablished heirship is the most common title defect in Comanche and Eastland County acquisitions
• A Qualified Intermediary must be engaged before your relinquished property closes; if you receive the proceeds yourself, even briefly, the exchange is disqualified and the full gain is recognized in the year of sale

---

Frequently Asked Questions

Can I exchange rental real estate for a mineral interest in Texas?

Yes. Rental real estate and Texas mineral interests are both real property held for investment, which makes them like-kind under IRC § 1031. The relinquished property must have been held for investment or productive use in a trade or business — not for personal use — and the replacement mineral interest must also be held for investment. Consult a qualified tax advisor to confirm your specific situation qualifies before proceeding.

What happens if I miss the 45-day identification deadline?

The exchange fails entirely. Your Qualified Intermediary releases the proceeds to you, and the full gain from the sale of your relinquished property is recognized in the year of sale. There are no extensions, no cure periods, and no IRS exceptions for missed identification deadlines. This is why sourcing replacement property before your relinquished property closes is essential.

How specific does my identification need to be for a mineral interest?

The identification must be specific enough that a third party could identify the property without additional information from you. For a mineral interest, this means the legal description of the acreage (section, township, range, or survey name and abstract number), the county and state, the operator or well name if applicable, the type of interest (royalty, working interest, ORRI), and the fractional or decimal interest being acquired. A county-level description alone is not sufficient.

Can I identify more than three mineral interests?

Yes, under the 200% Rule or the 95% Rule. The 200% Rule allows you to identify any number of properties provided their combined fair market value does not exceed 200% of your relinquished property's value. The 95% Rule allows unlimited identifications provided you close on at least 95% of the aggregate identified value. Most exchangers use the Three-Property Rule because it is simpler and does not require a valuation analysis.

---

About the Author

Richard Partin is the Managing Member of Texas State Royalties, a Fort Worth-based, buyer-first firm that sources producing oil and gas mineral interests through established industry relationships. He holds a degree from the University of Texas at Arlington and has years of hands-on experience in oil and gas acreage interests, working interests, and capital formation across active Texas producing regions.

Texas State Royalties facilitates mineral-interest acquisitions and works exclusively with buyers. Information is for educational purposes only and is not legal, tax, or investment advice. Buyers should consult qualified legal, tax, and financial advisors before making any acquisition decision.