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Royalty Clerk

Texas oil lease · RRC district 03 · Lease 21511

Shut in

ARMSTRONG-MUNSON UNIT

Armstrong-Munson Unit is an oil lease in Fayette County, Texas, operated by Magnolia Oil & Gas Operating LLC in the Giddings (Austin Chalk-3) field.

Oil lease dossier · 1 well

0bbl oil, last 12 months
Operator
Magnolia Oil & Gas Operating LLC
County
Fayette County
Field
Giddings (Austin Chalk-3)
RRC lease
03-21511

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Where it sits

This county

Fayette CountyFayetteCaldwellBastropWashingtonBurlesonLeeAustinColoradoFayette County
Fayette County · RRC district 03Open Fayette County →
Oil in Jul 2026
0 bbl
Reporting to the state
since Jan 2020
Wells
1
Data through
Jul 2026

Production

Month by month, from the state record

What the Railroad Commission says this oil lease produced. Oil is in barrels (bbl). Gas is in thousand cubic feet (mcf).

No oil produced in the last 12 months

The state shows zero output for every month we hold.

  • Oil (bars, left axis)
  • Gas (line, right axis)
  • Last 12 months
No oil produced in the last 12 monthsMonthly oil production and gas for ARMSTRONG-MUNSON UNIT, Aug 2023 to Jul 2026. No oil produced in the last 12 months. The state shows zero output for every month we hold.Last 12 months: 0 bblbbl per monthmcf per month00120240360480Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
No oil produced in the last 12 monthsMonthly oil production and gas for ARMSTRONG-MUNSON UNIT, Aug 2023 to Jul 2026. No oil produced in the last 12 months. The state shows zero output for every month we hold.Last 12 monthsbbl per monthmcf per month00120240360480Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 21511, district 03. Reported through Jul 2026. The state revises recent months.

Gas disposition

Where the gas went

Every month the operator tells the state where each mcf of gas went, using a code. The code decides how your gas is paid.

All of the gas went to a transmission line in the 3 months reported

Each bar is one month. Colors are the disposition codes the operator reported.

All of the gas went to a transmission line in the 3 months reportedShare of ARMSTRONG-MUNSON UNIT gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a transmission line in the 3 months reported. Share of the lease’s gas by disposition code, per month0%50%100%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
All of the gas went to a transmission line in the 3 months reportedShare of ARMSTRONG-MUNSON UNIT gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a transmission line in the 3 months reported. Share of gas by disposition code0%50%100%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, gas disposition by code, lease 21511, district 03. Reported through Jul 2026.

Transmission line (2)

Sold straight into a pipeline without processing. Processing fees on your statement would be worth asking about.

None of the gas was flared in the 3 months reported.

Operator history

Who has run this lease

The operator runs the wells and pays your royalty. When the operator changes, payments often slip for a month or two.

The operator changed once, most recently in Jul 2020

If your statements skip or shrink around a change, ask the new operator's owner relations department whether the month is in suspense.

Operators of this lease over timeXTO Energy Inc., Jan 2020 to Jun 2020; Magnolia Oil & Gas Operating LLC, Jul 2020 to Jul 20262020202120222023202420252026Changed Jul 2020XTO Energy Inc.Jan 2020 to Jun 2020Magnolia Oil & Gas Operating…Jul 2020 to now
Operators of this lease over timeXTO Energy Inc., Jan 2020 to Jun 2020; Magnolia Oil & Gas Operating LLC, Jul 2020 to Jul 20262020202120222023202420252026Changed Jul 2020XTO Energy Inc.Jan 2020 to Jun 2020Magnolia Oil & Gas Operating LLCJul 2020 to now

SourceTexas Railroad Commission Production Data Query, operator by month. Reported through Jul 2026.

Wells

1 well on this lease

Every well the Railroad Commission links to oil lease 21511 in district 03. The API number is the state’s ID for a well.
Wells on ARMSTRONG-MUNSON UNIT
API numberWell no.Status
42-149-325951Shut-in

SourceTexas Railroad Commission Wellbore Query, district 03, lease 21511.

Who buys and gathers

Who moves and buys this lease's production

The operator files a Form P-4 with the Railroad Commission naming the companies authorised to gather and buy the oil and gas. The buyer's price is the one your royalty is figured on.

  • Oil

    Gulfmark Energy, Inc. gathers it.

    100% of it, on the list since Jun 1, 2020

  • Gas from oil wells

    Energy Transfer Company buys and gathers it.

    Energy Transfer Company buys it: 100% of it, on the list since May 1, 2005 · Energy Transfer Company gathers it: 100% of it, on the list since May 1, 2005

Companies that used to be listed: Enterprise Crude Oil LLC (gathers it, until Jun 1, 2020).

SourceRailroad Commission of Texas, Form P-4 file, dated Sep 24, 2026 (source). A listed company is authorised to move or buy the production; the state does not say what it paid.

Who buys my oil and gasIs my oil price fair?

Unit and wells

360 acres on the newest permit

Acres and wells as the operator filed them on its Railroad Commission drilling permits. Your decimal is your net acres over the unit acres, so this is the number to hold your division order against.
Wells on the permits
11 not plugged
Horizontal
1
First completion
May 2, 1992
Latest permit
Jul 28, 1992

A pooling certificate was filed

Your tract may share its production with neighbours in a pooled unit. The unit acres the operator uses to divide production can differ from the acreage on one permit.

Wells and acres on the permits for Armstrong-Munson Unit
API numberWell no.Acreson the permit
42-149-325951360

SourceRailroad Commission of Texas, drilling permits and wellbore file, Sep 26, 2026 (source 1, source 2). The acres are what the operator filed; they are not a survey.

Check my decimal against the unit

What the operator reported

What Magnolia Oil & Gas Corporation told investors it received

Magnolia Oil & Gas Operating LLC is linked to Magnolia Oil & Gas Corporation (MGY). Public companies report the average price they realize each quarter. It is an average across everything the company operates, not the price on this lease.
Realized prices reported by Magnolia Oil & Gas Corporation
QuarterOil$ per bblFiling
Q2 2026$98.13SEC filing
Q1 2026$70.29SEC filing
Q3 2025$63.55SEC filing
Q2 2025$62.20SEC filing
Q1 2025$69.81SEC filing
Q3 2024$74.23SEC filing

SourceMagnolia Oil & Gas Corporation quarterly reports on SEC EDGAR, prices before hedging where the company states both. Read by machine from each filing’s tables; the link opens the filing so you can check the figure.

Compare with the price on my stub

Estimator

Estimate your royalty for this lease

A rough check before you look at a statement: the state volumes times your decimal, priced at WTI and Henry Hub.

Estimator

What could your check be?

Your decimal interest is the small number on your division order that says what share of the whole lease (8/8ths) is yours. Type it in and we apply it to what the state says ARMSTRONG-MUNSON UNIT sold each month.

For example 0.00097656, or a fraction like 1/1024.

Your estimate appears here

Enter your decimal to see an estimated royalty for each of the last 12 months this lease reported. Nothing you type leaves your browser.

An estimate, not your check

It ignores gathering and processing fees, taxes, plant products and the price your operator actually gets, so your statement will differ. Use it as a ceiling to compare against.

Ledger

36 months, newest first

Compare these numbers with your statements. Your share of a month is the “Oil sold” volume times your decimal. Scroll sideways on a phone.
Monthly production, disposition and prices for ARMSTRONG-MUNSON UNIT
MonthGas producedmcfGas soldmcf, codes 2+3Flaredmcf, code 4WTI$ per bblHenry Hub$ per MMBtu
Jul 2026Magnolia Oil000$80.46$2.89
Jun 2026Magnolia Oil000$84.81$3.15
May 2026Magnolia Oil000$102.13$2.94
Apr 2026Magnolia Oil000$100.32$2.77
Mar 2026Magnolia Oil000$91.38$3.04
Feb 2026Magnolia Oil000$64.51$3.62
Jan 2026Magnolia Oil000$60.04$7.72
Dec 2025Magnolia Oil000$57.97$4.26
Nov 2025Magnolia Oil000$60.06$3.79
Oct 2025Magnolia Oil000$60.89$3.19
Sep 2025Magnolia Oil000$63.96$2.97
Aug 2025Magnolia Oil000$64.86$2.91
Jul 2025Magnolia Oil000$68.39$3.20
Jun 2025Magnolia Oil000$68.17$3.02
May 2025Magnolia Oil000$62.17$3.12
Apr 2025Magnolia Oil000$63.54$3.42
Mar 2025Magnolia Oil000$68.24$4.12
Feb 2025Magnolia Oil000$71.53$4.19
Jan 2025Magnolia Oil000$75.74$4.13
Dec 2024Magnolia Oil000$70.12$3.01
Nov 2024Magnolia Oil000$69.95$2.12
Oct 2024Magnolia Oil000$71.99$2.20
Sep 2024Magnolia Oil000$70.24$2.28
Aug 2024Magnolia Oil000$76.68$1.99
Jul 2024Magnolia Oil000$81.80$2.07
Jun 2024Magnolia Oil000$79.77$2.54
May 2024Magnolia Oil000$80.02$2.12
Apr 2024Magnolia Oil000$85.35$1.60
Mar 2024Magnolia Oil000$81.28$1.49
Feb 2024Magnolia Oil000$77.25$1.72
Jan 2024Magnolia Oil000$74.15$3.18
Dec 2023Magnolia Oil000$71.90$2.52
Nov 2023Magnolia Oil000$77.69$2.71
Oct 2023Magnolia Oil11110$85.64$2.98
Sep 2023Magnolia Oil69690$89.43$2.64
Aug 2023Magnolia Oil11110$81.39$2.58

No report filed More than 3% of gas flared

SourceVolumes: Texas Railroad Commission Production Data Query, reported through Jul 2026. Prices: EIA WTI Cushing spot and Henry Hub spot, monthly, through Aug 2026. “Gas sold” is gas sent to a transmission line (code 2) or a plant (code 3).

Check your statements

Do your checks match this lease?

Upload your statements for ARMSTRONG-MUNSON UNIT. We compare volumes, prices, deductions and timing with the state record and give you the exact question to ask Magnolia Oil & Gas Operating LLC.

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  • A month that was never paid
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  • Fees taken on gas
  • Late payment interest

Around this lease

Walk the neighborhood

Everything on this page connects to the operator, field and county records. Start from any of them.

This lease belongs to

OperatorMagnolia Oil & Gas Operating LLCFieldGiddings (Austin Chalk-3)CountyFayette County

Magnolia Oil & Gas Operating LLC in Fayette County

All Magnolia Oil & Gas Operating LLC leases →

Giddings (Austin Chalk-3) field

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Found by the location of their wells.

Drilling permits within 10 km

How to read this page

Questions owners ask

What is a decimal interest?

It is your share of the whole lease, written as a decimal. A 1/4 royalty on 5 net acres in a 1,280-acre unit is 1/4 × 5 ÷ 1,280 = 0.00097656. Your division order states yours.

How do I use this page to check a royalty check?

Take the “Oil sold” volume for the month the check covers and multiply it by your decimal. The answer should match the barrels on your statement. If it does not, upload the statement and we will show where the two differ.

Why is the newest month Jul 2026?

The Railroad Commission publishes production two to three months after the fact and revises recent months. We re-pull the latest three months on every update.

Does this page show what my check should be?

No. It shows what the state recorded. Prices, fees and taxes depend on your lease and on what your operator gets for the oil and gas. The estimator gives a ceiling to compare against.

Sources and method

Where these numbers come from

  • Production and disposition by month: Texas Railroad Commission Production Data Query, oil lease 21511, district 03, reported through Jul 2026.
  • Wells: Texas Railroad Commission Wellbore Query.
  • Prices: U.S. Energy Information Administration, WTI Cushing spot and Henry Hub spot, monthly.
  • Page updated Sep 28, 2026.

We show the state’s numbers as filed. Where the state has no report for a month, we say so instead of guessing.

FAQ

Questions about ARMSTRONG-MUNSON UNIT

Who operates the ARMSTRONG-MUNSON UNIT lease?

The Railroad Commission lists Magnolia Oil & Gas Operating LLC (operator number 521544) as the operator of this lease in Fayette County, Texas. The operator history on this page shows earlier operators and when the record changed.

How much has the ARMSTRONG-MUNSON UNIT lease produced?

The record shows no oil or gas reported for the months on this page. The ledger lists every month the state has on file for district 03, lease 21511.

Does this page show who owns the royalty?

No. Railroad Commission records show who operates a lease and what it reported, not who owns the minerals or receives royalty. Your division order and royalty stub name the lease and your decimal interest.

How do I check my royalty stub against this lease?

Multiply the lease's volume for a month by your decimal interest and compare it with the barrels and mcf on your stub for the same month. The two are seldom identical, since sales and reporting months can differ, but a large gap is worth a question to the operator.

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