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Royalty Clerk

Texas oil lease · RRC district 01 · Lease 15289

Producing

THALMANN

Thalmann is an oil lease in Dimmit County, Texas, operated by Exco Operating Company, LP in the Briscoe Ranch (Eagleford) field. The Railroad Commission shows 768 bbl of oil in the 12 months through Jul 2026.

Oil lease dossier · 1 well

768bbl oil, last 12 months−3% vs prior year
Operator
Exco Operating Company, LP
County
Dimmit County
Field
Briscoe Ranch (Eagleford)
RRC lease
01-15289

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Where it sits

This county

Dimmit CountyDimmitLA SalleZavalaFrioMaverickDimmit County
Dimmit County · RRC district 01Open Dimmit County →
Gas, last 12 months
5,494 mcf
Oil in Jul 2026
56 bbl
Reporting to the state
since Jan 2020
Wells
1

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 3% over the last 12 months

768 bbl in the 12 months through Jul 2026, against 795 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Gas (line, right axis)
  • Last 12 months
Oil output fell 3% over the last 12 monthsMonthly oil production and gas for THALMANN, Aug 2023 to Jul 2026. Oil output fell 3% over the last 12 months. 768 bbl in the 12 months through Jul 2026, against 795 bbl in the 12 months before.Last 12 months: 768 bblbbl per monthmcf per month002520050400756001008001251,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 3% over the last 12 monthsMonthly oil production and gas for THALMANN, Aug 2023 to Jul 2026. Oil output fell 3% over the last 12 months. 768 bbl in the 12 months through Jul 2026, against 795 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002520050400756001008001251,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 15289, 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.

66% of the gas went to lease fuel in the last 12 months

Flaring peaked at 47.2% of the gas in Dec 2024.

  • Lease fuel (1)
  • Flared (4)
66% of the gas went to lease fuel in the last 12 monthsShare of THALMANN gas by disposition code each month, Aug 2023 to Jul 2026. 66% of the gas went to lease fuel in the last 12 months. Flaring peaked at 47.2% of the gas in Dec 2024.Share of the lease’s gas by disposition code, per month0%50%100%Flared 47.2%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
66% of the gas went to lease fuel in the last 12 monthsShare of THALMANN gas by disposition code each month, Aug 2023 to Jul 2026. 66% of the gas went to lease fuel in the last 12 months. Flaring peaked at 47.2% of the gas in Dec 2024.Share of gas by disposition code0%50%100%Flared 47.2%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, gas disposition by code, lease 15289, district 01. Reported through Jul 2026.

Lease fuel (1)

Burned to run equipment on the lease. Not sold, so it pays no royalty. A few percent is normal.

Flared (4)

Burned off or vented, not sold. It pays no royalty. More than 3% in a month is worth watching.

Over the last 12 months, 33.6% of the gas was flared. 34 months went above 3%, which we mark in the ledger below.

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.

Exco Operating Company, LP has reported this lease for the whole period

No change of operator in the months we hold.

Operators of this lease over timeExco Operating Company, LP, Jan 2020 to Jul 20262020202120222023202420252026Exco Operating Company, LPJan 2020 to nowthrough Jul 2026
Operators of this lease over timeExco Operating Company, LP, Jan 2020 to Jul 20262020202120222023202420252026Exco Operating Company, LPJan 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 15289 in district 01. The API number is the state’s ID for a well.
Wells on THALMANN
API numberWell no.Status
42-127-337641HActive

SourceTexas Railroad Commission Wellbore Query, district 01, lease 15289.

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

    Eastex Crude Company, LLC gathers it.

    100% of it, on the list since Jan 1, 2023

  • Gas from oil wells

    Raider Marketing, LP buys it; Williams Mlp Operating LLC gathers it.

    Raider Marketing, LP buys it: 100% of it, on the list since Jan 1, 2017 · Williams Mlp Operating LLC gathers it: 100% of it, on the list since Oct 1, 2015

Companies that used to be listed: Eastex Crude Company (gathers it, until Jan 1, 2023); Flint Hills Resources, LP (gathers it, until Jan 1, 2023).

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

793.42 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
Jan 6, 2011
Latest permit
Sep 22, 2010
Wells and acres on the permits for Thalmann
API numberWell no.Acreson the permit
42-127-337641H793.42

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 THALMANN 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 THALMANN
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3Flaredmcf, code 4WTI$ per bblHenry Hub$ per MMBtu
Jul 2026Exco Operating5604450135$80.46$2.89
Jun 2026Exco Operating6904630163$84.81$3.15
May 2026Exco Operating5604450135$102.13$2.94
Apr 2026Exco Operating531584310131$100.32$2.77
Mar 2026Exco Operating7204810171$91.38$3.04
Feb 2026Exco Operating571604190139$64.51$3.62
Jan 2026Exco Operating7104810171$60.04$7.72
Dec 2025Exco Operating691704730163$57.97$4.26
Nov 2025Exco Operating6604590159$60.06$3.79
Oct 2025Exco Operating6904730163$60.89$3.19
Sep 2025Exco Operating651624590159$63.96$2.97
Aug 2025Exco Operating6504650155$64.86$2.91
Jul 2025Exco Operating611594610151$68.39$3.20
Jun 2025Exco Operating6504550155$68.17$3.02
May 2025Exco Operating6304610151$62.17$3.12
Apr 2025Exco Operating621644550155$63.54$3.42
Mar 2025Exco Operating7204810171$68.24$4.12
Feb 2025Exco Operating701584470167$71.53$4.19
Jan 2025Exco Operating7604920182$75.74$4.13
Dec 2024Exco Operating1151705790273$70.12$3.01
Nov 2024Exco Operating0029500$69.95$2.12
Oct 2024Exco Operating541744450135$71.99$2.20
Sep 2024Exco Operating7404750175$70.24$2.28
Aug 2024Exco Operating83031000$76.68$1.99
Jul 2024Exco Operating670350040$81.80$2.07
Jun 2024Exco Operating641634530153$79.77$2.54
May 2024Exco Operating7204810171$80.02$2.12
Apr 2024Exco Operating641544520152$85.35$1.60
Mar 2024Exco Operating7204810171$81.28$1.49
Feb 2024Exco Operating7004570167$77.25$1.72
Jan 2024Exco Operating693384780168$74.15$3.18
Dec 2023Exco Operating7504890179$71.90$2.52
Nov 2023Exco Operating8004900190$77.69$2.71
Oct 2023Exco Operating4404370127$85.64$2.98
Sep 2023Exco Operating6804630163$89.43$2.64
Aug 2023Exco Operating741664920182$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).

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Around this lease

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This lease belongs to

OperatorExco Operating Company, LPFieldBriscoe Ranch (Eagleford)CountyDimmit County

Exco Operating Company, LP in Dimmit County

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Briscoe Ranch (Eagleford) field

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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 15289, 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.