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Royalty Clerk

Texas oil lease · RRC district 01 · Lease 00533

Producing

CASTER, CLEMMIE

Caster, Clemmie is an oil lease in Guadalupe County, Texas, operated by Texstar Oil & Gas, LLC in the Dunlap field. The Railroad Commission shows 781 bbl of oil in the 12 months through Jun 2026.

Oil lease dossier · 6 wells

781bbl oil, last 12 months−22% vs prior year
Operator
Texstar Oil & Gas, LLC
County
Guadalupe County
Field
Dunlap
RRC lease
01-00533

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Where it sits

This county

Guadalupe CountyGuadalupeWilsonComalGonzalesCaldwellBastropHaysBexarGuadalupe County
Guadalupe County · RRC district 01Open Guadalupe County →
Oil in Jun 2026
57 bbl
Reporting to the state
since Jan 2020
Wells
6
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 22% over the last 12 months

716 bbl in the 12 months through Jul 2026, against 918 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 22% over the last 12 monthsMonthly oil production for CASTER, CLEMMIE, Aug 2023 to Jul 2026. Oil output fell 22% over the last 12 months. 716 bbl in the 12 months through Jul 2026, against 918 bbl in the 12 months before.Last 12 months: 716 bblbbl per month050100150200Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 22% over the last 12 monthsMonthly oil production for CASTER, CLEMMIE, Aug 2023 to Jul 2026. Oil output fell 22% over the last 12 months. 716 bbl in the 12 months through Jul 2026, against 918 bbl in the 12 months before.Last 12 monthsbbl per month050100150200Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 00533, 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.

Texstar Oil & Gas, LLC has reported this lease for the whole period

No change of operator in the months we hold.

Operators of this lease over timeTexstar Oil & Gas, LLC, Jan 2020 to Jun 20262020202120222023202420252026Texstar Oil & Gas, LLCJan 2020 to nowthrough Jul 2026
Operators of this lease over timeTexstar Oil & Gas, LLC, Jan 2020 to Jun 20262020202120222023202420252026Texstar Oil & Gas, LLCJan 2020 to nowthrough Jul 2026

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

Wells

6 wells on this lease

Every well the Railroad Commission links to oil lease 00533 in district 01. The API number is the state’s ID for a well.
Wells on CASTER, CLEMMIE
API numberWell no.Status
42-187-002921Shut-in
42-187-002932Active
42-187-031804Active
42-187-032273Active
42-187-032285Active
42-187-322546Active

SourceTexas Railroad Commission Wellbore Query, district 01, lease 00533.

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

    Ace Gathering, Inc. and Gulfmark Energy, Inc. gather it.

    Ace Gathering, Inc. gathers it: 50% of it, on the list since Jan 1, 2019 · Gulfmark Energy, Inc. gathers it: 50% of it, on the list since Mar 15, 2022

Companies that used to be listed: Shell Trading (Us) Company (gathers it, until Mar 15, 2022); First River Energy, LLC (gathers it, until Jan 1, 2019).

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

40 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
65 not plugged
Horizontal
0
First completion
May 20, 1967
Latest permit
Oct 8, 1982
Wells and acres on the permits for Caster, Clemmie
API numberWell no.Acreson the permit
42-187-32254640
42-187-002921–
42-187-002932–
42-187-031804–
42-187-032273–
42-187-032285–

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 CASTER, CLEMMIE 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 CASTER, CLEMMIE
MonthOil producedbblOil soldbblWTI$ per bblHenry Hub$ per MMBtu
Jul 2026No report––$80.46$2.89
Jun 2026Texstar Oil5739$84.81$3.15
May 2026Texstar Oil67132$102.13$2.94
Apr 2026Texstar Oil7774$100.32$2.77
Mar 2026Texstar Oil740$91.38$3.04
Feb 2026Texstar Oil79139$64.51$3.62
Jan 2026Texstar Oil400$60.04$7.72
Dec 2025Texstar Oil129109$57.97$4.26
Nov 2025Texstar Oil5074$60.06$3.79
Oct 2025Texstar Oil190$60.89$3.19
Sep 2025Texstar Oil5459$63.96$2.97
Aug 2025Texstar Oil7072$64.86$2.91
Jul 2025Texstar Oil6577$68.39$3.20
Jun 2025Texstar Oil8571$68.17$3.02
May 2025Texstar Oil6363$62.17$3.12
Apr 2025Texstar Oil78158$63.54$3.42
Mar 2025Texstar Oil700$68.24$4.12
Feb 2025Texstar Oil6860$71.53$4.19
Jan 2025Texstar Oil97185$75.74$4.13
Dec 2024Texstar Oil850$70.12$3.01
Nov 2024Texstar Oil107152$69.95$2.12
Oct 2024Texstar Oil7777$71.99$2.20
Sep 2024Texstar Oil550$70.24$2.28
Aug 2024Texstar Oil6883$76.68$1.99
Jul 2024Texstar Oil9191$81.80$2.07
Jun 2024Texstar Oil8581$79.77$2.54
May 2024Texstar Oil9185$80.02$2.12
Apr 2024Texstar Oil8797$85.35$1.60
Mar 2024Texstar Oil90145$81.28$1.49
Feb 2024Texstar Oil9326$77.25$1.72
Jan 2024Texstar Oil7381$74.15$3.18
Dec 2023Texstar Oil9884$71.90$2.52
Nov 2023Texstar Oil7487$77.69$2.71
Oct 2023Texstar Oil6158$85.64$2.98
Sep 2023Texstar Oil6973$89.43$2.64
Aug 2023Texstar Oil9479$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

OperatorTexstar Oil & Gas, LLCFieldDunlapCountyGuadalupe County

Texstar Oil & Gas, LLC in Guadalupe County

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Dunlap field

All leases in this 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 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 00533, 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.