Skip to content
Royalty Clerk

Texas oil lease · RRC district 03 · Lease 26131

Shut in

MACKEREL

Mackerel is an oil lease in Milam County, Texas, operated by Buffco Production Inc. in the Giddings (Buda) field. The Railroad Commission shows 222 bbl of oil in the 12 months through Jun 2026.

Oil lease dossier · 1 well

222bbl oil, last 12 months−51% vs prior year
Operator
Buffco Production Inc.
County
Milam County
Field
Giddings (Buda)
RRC lease
03-26131

Own a share of this lease?

Is your check right?

Upload a check stub or a phone photo. We compare every month with the state numbers on this page.

Check my statement

Free. No account needed. Two to four pages.

Where it sits

This county

Milam CountyMilamFallsBellWilliamsonBrazosBurlesonRobertsonMilam County
Milam County · RRC district 03Open Milam County →
Oil in Jun 2026
0 bbl
Reporting to the state
since Jan 2020
Wells
1
Data through
Jun 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).

Oil output fell 51% over the last 12 months

189 bbl in the 12 months through Jul 2026, against 389 bbl in the 12 months before. Jul 2026 was not reported. A red cross marks each one.

  • Oil (bars, left axis)
  • Last 12 months
Oil output fell 51% over the last 12 monthsMonthly oil production for MACKEREL, Aug 2023 to Jul 2026. Oil output fell 51% over the last 12 months. 189 bbl in the 12 months through Jul 2026, against 389 bbl in the 12 months before.Last 12 months: 189 bblbbl per month050100150200Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 51% over the last 12 monthsMonthly oil production for MACKEREL, Aug 2023 to Jul 2026. Oil output fell 51% over the last 12 months. 189 bbl in the 12 months through Jul 2026, against 389 bbl in the 12 months before.Last 12 monthsbbl per month050100150200Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 26131, 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.

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.

Buffco Production Inc. has reported this lease for the whole period

No change of operator in the months we hold.

Operators of this lease over timeBuffco Production Inc., Jan 2020 to Jun 20262020202120222023202420252026Buffco Production Inc.Jan 2020 to nowthrough Jul 2026
Operators of this lease over timeBuffco Production Inc., Jan 2020 to Jun 20262020202120222023202420252026Buffco Production Inc.Jan 2020 to nowthrough Jul 2026

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 26131 in district 03. The API number is the state’s ID for a well.
Wells on MACKEREL
API numberWell no.Status
42-331-344021HActive

SourceTexas Railroad Commission Wellbore Query, district 03, lease 26131.

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

    Endeavor Tank & Transport LLC and Texon Midstream, LLC gather it.

    Endeavor Tank & Transport LLC gathers it: 50% of it, on the list since Dec 1, 2018 · Texon Midstream, LLC gathers it: 50% of it, on the list since Jul 1, 2025

Companies that used to be listed: Trend Gathering & Treating, LLC (gathers it, until Jul 1, 2025); Cross Timbers Energy Servcs, INC (buys it, until Jul 1, 2025); Energy Transfer Marketing & Term (gathers it, until Jul 1, 2025); Sunoco Ptnrs. Mktg.&terminals LP (gathers it, until Dec 1, 2022).

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

483.24 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
10 not plugged
Horizontal
1
First completion
Jan 19, 2013
Latest permit
May 24, 2012
Wells and acres on the permits for Mackerel
API numberWell no.Acreson the permit
42-331-344021H483.24

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

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 MACKEREL sold each month.

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

Dollars per barrel. Your statements show the gap your operator uses. Leave 0 to price oil at WTI.

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 MACKEREL
MonthOil producedbblOil soldbblWTI$ per bblHenry Hub$ per MMBtu
Jul 2026No report––$80.46$2.89
Jun 2026Buffco Production00$84.81$3.15
May 2026Buffco Production00$102.13$2.94
Apr 2026Buffco Production00$100.32$2.77
Mar 2026Buffco Production00$91.38$3.04
Feb 2026Buffco Production00$64.51$3.62
Jan 2026Buffco Production00$60.04$7.72
Dec 2025Buffco Production00$57.97$4.26
Nov 2025Buffco Production00$60.06$3.79
Oct 2025Buffco Production27387$60.89$3.19
Sep 2025Buffco Production1400$63.96$2.97
Aug 2025Buffco Production220$64.86$2.91
Jul 2025Buffco Production33123$68.39$3.20
Jun 2025Buffco Production49173$68.17$3.02
May 2025Buffco Production300$62.17$3.12
Apr 2025Buffco Production00$63.54$3.42
Mar 2025Buffco Production00$68.24$4.12
Feb 2025Buffco Production700$71.53$4.19
Jan 2025Buffco Production700$75.74$4.13
Dec 2024Buffco Production00$70.12$3.01
Nov 2024Buffco Production00$69.95$2.12
Oct 2024Buffco Production1370$71.99$2.20
Sep 2024Buffco Production00$70.24$2.28
Aug 2024Buffco Production00$76.68$1.99
Jul 2024Buffco Production00$81.80$2.07
Jun 2024Buffco Production00$79.77$2.54
May 2024Buffco Production170$80.02$2.12
Apr 2024Buffco Production00$85.35$1.60
Mar 2024Buffco Production00$81.28$1.49
Feb 2024Buffco Production00$77.25$1.72
Jan 2024Buffco Production00$74.15$3.18
Dec 2023Buffco Production180$71.90$2.52
Nov 2023Buffco Production70$77.69$2.71
Oct 2023Buffco Production3597$85.64$2.98
Sep 2023Buffco Production00$89.43$2.64
Aug 2023Buffco Production20$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 MACKEREL. We compare volumes, prices, deductions and timing with the state record and give you the exact question to ask Buffco Production Inc.

Check my statementTry a sample owner
  • A month that was never paid
  • Your share of the barrels and mcf
  • The price against WTI and Henry Hub
  • 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

OperatorBuffco Production Inc.FieldGiddings (Buda)CountyMilam County

Buffco Production Inc. in Milam County

All Buffco Production Inc. leases →

Giddings (Buda) field

All leases in this field →

Leases within 10 km

Found by the location of their wells.

New drilling permits in Milam 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 Jun 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 26131, 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.