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Royalty Clerk

Texas oil lease · RRC district 01 · Lease 08026

No report in 6+ months

MCMAHON

McMahon is an oil lease in Wilson County, Texas, operated by Petrosaurus, Inc. in the LA Vernia field. The Railroad Commission shows 9 bbl of oil in the 12 months through Jan 2022.

Oil lease dossier · 3 wells

9bbl oil, last 12 months−71% vs prior year
Operator
Petrosaurus, Inc.
County
Wilson County
Field
LA Vernia
RRC lease
01-08026

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Where it sits

This county

Wilson CountyWilsonAtascosaComalGonzalesKarnesDe WittGuadalupeBexarWilson County
Wilson County · RRC district 01Open Wilson County →
Oil in Jan 2022
0 bbl
Reporting to the state
since Jan 2020
Wells
3
Data through
Jan 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 fell 71% over the last 12 months

9 bbl in the 12 months through Jan 2022, against 31 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Last 12 months
Oil output fell 71% over the last 12 monthsMonthly oil production for MCMAHON, Jan 2020 to Jan 2022. Oil output fell 71% over the last 12 months. 9 bbl in the 12 months through Jan 2022, against 31 bbl in the 12 months before.Last 12 months: 9 bblbbl per month01234Jan 20AprJulOctJan 21AprJulOctJan 22
Oil output fell 71% over the last 12 monthsMonthly oil production for MCMAHON, Jan 2020 to Jan 2022. Oil output fell 71% over the last 12 months. 9 bbl in the 12 months through Jan 2022, against 31 bbl in the 12 months before.Last 12 monthsbbl per month01234Jan 20JulJan 21JulJan 22

SourceTexas Railroad Commission Production Data Query, oil lease 08026, 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.

The operator changed once, most recently in Jul 2021

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 timeJ.a.g. Oil & Gas, Jan 2020 to Jun 2021; Petrosaurus, Inc., Jul 2021 to Jan 2022202020212022Changed Jul 2021J.a.g. Oil & GasJan 2020 to Jun 2021Petrosaurus, Inc.Jul 2021 to now
Operators of this lease over timeJ.a.g. Oil & Gas, Jan 2020 to Jun 2021; Petrosaurus, Inc., Jul 2021 to Jan 2022202020212022Changed Jul 2021J.a.g. Oil & GasJan 2020 to Jun 2021Petrosaurus, Inc.Jul 2021 to now

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

Wells

3 wells on this lease

Every well the Railroad Commission links to oil lease 08026 in district 01. The API number is the state’s ID for a well.
Wells on MCMAHON
API numberWell no.Status
42-493-310501Active
42-493-311293Active
42-493-311302Active

SourceTexas Railroad Commission Wellbore Query, district 01, lease 08026.

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 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

25 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
MonthOil producedbblOil soldbblWTI$ per bblHenry Hub$ per MMBtu
Jan 2022Petrosaurus, Inc.00$83.22$4.38
Dec 2021Petrosaurus, Inc.00$71.71$3.76
Nov 2021Petrosaurus, Inc.00$79.15$5.05
Oct 2021Petrosaurus, Inc.00$81.48$5.51
Sep 2021Petrosaurus, Inc.00$71.65$5.16
Aug 2021Petrosaurus, Inc.00$67.73$4.07
Jul 2021Petrosaurus, Inc.20$72.49$3.84
Jun 2021J.a.g. Oil00$71.38$3.26
May 2021J.a.g. Oil00$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. Oil20$59.04$5.35
Jan 2021J.a.g. Oil30$52.00$2.71
Dec 2020J.a.g. Oil30$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. Oil20$39.63$1.92
Aug 2020J.a.g. Oil20$42.34$2.30
Jul 2020J.a.g. Oil30$40.71$1.76
Jun 2020J.a.g. Oil20$38.31$1.63
May 2020J.a.g. Oil30$28.56$1.75
Apr 2020J.a.g. Oil20$16.55$1.74
Mar 2020J.a.g. Oil30$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).

Check your statements

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Upload your statements for MCMAHON. We compare volumes, prices, deductions and timing with the state record and give you the exact question to ask Petrosaurus, Inc.

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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

OperatorPetrosaurus, Inc.FieldLA VerniaCountyWilson County

Petrosaurus, Inc. in Wilson County

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

LA Vernia field

All leases in this field →

New drilling permits in Wilson 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 Jan 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 08026, 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.