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Royalty Clerk

Texas oil lease · RRC district 01 · Lease 06103

No report in 6+ months

MCMAHON, JOHN "A"

McMahon, John "A" is an oil lease in Guadalupe County, Texas, operated by J.a.g. Oil & Gas in the LA Vernia field. The Railroad Commission shows 33 bbl of oil in the 12 months through Aug 2022.

Oil lease dossier · 8 wells

33bbl oil, last 12 months+3% vs prior year
Operator
J.a.g. Oil & Gas
County
Guadalupe County
Field
LA Vernia
RRC lease
01-06103

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Where it sits

This county

Guadalupe CountyGuadalupeWilsonComalGonzalesCaldwellBastropHaysBexarGuadalupe County
Guadalupe County · RRC district 01Open Guadalupe County →
Oil in Aug 2022
4 bbl
Reporting to the state
since Jan 2020
Wells
8
Data through
Aug 2022

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).

Oil output rose 3% over the last 12 months

33 bbl in the 12 months through Aug 2022, against 32 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Last 12 months
Oil output rose 3% over the last 12 monthsMonthly oil production for MCMAHON, JOHN "A", Jan 2020 to Aug 2022. Oil output rose 3% over the last 12 months. 33 bbl in the 12 months through Aug 2022, against 32 bbl in the 12 months before.Last 12 months: 33 bblbbl per month01234Jan 20AprJulOctJan 21AprJulOctJan 22AprJul
Oil output rose 3% over the last 12 monthsMonthly oil production for MCMAHON, JOHN "A", Jan 2020 to Aug 2022. Oil output rose 3% over the last 12 months. 33 bbl in the 12 months through Aug 2022, against 32 bbl in the 12 months before.Last 12 monthsbbl per month01234Jan 20JulJan 21JulJan 22Jul

SourceTexas Railroad Commission Production Data Query, oil lease 06103, district 01. 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.

No gas disposition reported for this lease

The operator has not reported where the gas went in the months we hold.

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.

J.a.g. Oil & Gas has reported this lease for the whole period

No change of operator in the months we hold.

Operators of this lease over timeJ.a.g. Oil & Gas, Jan 2020 to Aug 2022202020212022J.a.g. Oil & GasJan 2020 to nowthrough Aug 2022
Operators of this lease over timeJ.a.g. Oil & Gas, Jan 2020 to Aug 2022202020212022J.a.g. Oil & GasJan 2020 to nowthrough Aug 2022

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

Wells

8 wells on this lease

Every well the Railroad Commission links to oil lease 06103 in district 01. The API number is the state’s ID for a well.
Wells on MCMAHON, JOHN "A"
API numberWell no.Status
42-187-310801Active
42-187-310812Active
42-187-310823Active
42-187-310834Active
42-187-320426AActive
42-187-320435AActive
42-187-327708AActive
42-187-327717AActive

SourceTexas Railroad Commission Wellbore Query, district 01, lease 06103.

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

    Synergy Transfer, LLC, Ace Gathering, Inc. and Sunray Marketing, LLC gather it.

    Synergy Transfer, LLC gathers it: 33.34% of it, on the list since Aug 1, 2020 · Ace Gathering, Inc. gathers it: 33.33% of it, on the list since Aug 1, 2020 · Sunray Marketing, LLC gathers it: 33.33% of it, on the list since Aug 1, 2020

Companies that used to be listed: Ngl Crude Logistics, LLC (gathers it, until Aug 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

46 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
80 not plugged
Horizontal
0
First completion
Jan 21, 1980
Latest permit
May 9, 1984

8 wells are listed on this lease

Each well can have its own unit. The decimal for one well does not have to equal the decimal for another.

Wells and acres on the permits for McMahon, John "A"
API numberWell no.Acreson the permit
42-187-327708A46
42-187-327717A46
42-187-320426A45
42-187-320435A45
42-187-31080145
42-187-31081245
42-187-31082345
42-187-31083445

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.

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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 MCMAHON, JOHN "A" 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

32 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 MCMAHON, JOHN "A"
MonthOil producedbblOil soldbblWTI$ per bblHenry Hub$ per MMBtu
Aug 2022J.a.g. Oil40$93.67$8.81
Jul 2022J.a.g. Oil30$101.62$7.28
Jun 2022J.a.g. Oil20$114.84$7.70
May 2022J.a.g. Oil40$109.55$8.14
Apr 2022J.a.g. Oil30$101.78$6.60
Mar 2022J.a.g. Oil20$108.50$4.90
Feb 2022J.a.g. Oil30$91.64$4.69
Jan 2022J.a.g. Oil20$83.22$4.38
Dec 2021J.a.g. Oil30$71.71$3.76
Nov 2021J.a.g. Oil20$79.15$5.05
Oct 2021J.a.g. Oil30$81.48$5.51
Sep 2021J.a.g. Oil20$71.65$5.16
Aug 2021J.a.g. Oil20$67.73$4.07
Jul 2021J.a.g. Oil30$72.49$3.84
Jun 2021J.a.g. Oil30$71.38$3.26
May 2021J.a.g. Oil30$65.17$2.91
Apr 2021J.a.g. Oil30$61.72$2.66
Mar 2021J.a.g. Oil20$62.33$2.62
Feb 2021J.a.g. Oil30$59.04$5.35
Jan 2021J.a.g. Oil20$52.00$2.71
Dec 2020J.a.g. Oil20$47.02$2.58
Nov 2020J.a.g. Oil30$40.94$2.61
Oct 2020J.a.g. Oil30$39.40$2.39
Sep 2020J.a.g. Oil30$39.63$1.92
Aug 2020J.a.g. Oil30$42.34$2.30
Jul 2020J.a.g. Oil40$40.71$1.76
Jun 2020J.a.g. Oil20$38.31$1.63
May 2020J.a.g. Oil20$28.56$1.75
Apr 2020J.a.g. Oil20$16.55$1.74
Mar 2020J.a.g. Oil20$29.21$1.79
Feb 2020J.a.g. Oil20$50.54$1.91
Jan 2020J.a.g. Oil30$57.52$2.02

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).

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Upload your statements for MCMAHON, JOHN "A". We compare volumes, prices, deductions and timing with the state record and give you the exact question to ask J.a.g. Oil & Gas.

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Around this lease

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

This lease belongs to

OperatorJ.a.g. Oil & GasFieldLA VerniaCountyGuadalupe County

J.a.g. Oil & Gas in Guadalupe County

No other producing leases from this operator in this county are in our data yet.

LA Vernia field

All leases in this field →

Leases within 10 km

Found by the location of their wells.

New drilling permits in Guadalupe County

We do not have coordinates for this lease, so these are the newest permits in its county.

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 Aug 2022?

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 06103, district 01, 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 MCMAHON, JOHN "A"

Who operates the MCMAHON, JOHN "A" lease?

The Railroad Commission lists J.a.g. Oil & Gas (operator number 427281) as the operator of this lease in Guadalupe County, Texas. The operator history on this page shows earlier operators and when the record changed.

How much has the MCMAHON, JOHN "A" lease produced?

The lease reported 33 bbl of oil in the last 12 months through Aug 2022. Monthly figures for 32 months are in the ledger on this page, taken from the Railroad Commission's production data.

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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