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Royalty Clerk

Texas oil lease · RRC district 01 · Lease 18318

Producing

YOUNG

Young is an oil lease in Medina County, Texas, operated by Calfas Cattle & Oil, LLC in the Fairfield field. The Railroad Commission shows 599 bbl of oil in the 12 months through Jul 2026.

Oil lease dossier · 6 wells

599bbl oil, last 12 months+63% vs prior year
Operator
Calfas Cattle & Oil, LLC
County
Medina County
Field
Fairfield
RRC lease
01-18318

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Where it sits

This county

Medina CountyMedinaUvaldeKendallRealBexarBanderaMedina County
Medina County · RRC district 01Open Medina County →
Oil in Jul 2026
27 bbl
Reporting to the state
since Jan 2020
Wells
6
Data through
Jul 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 rose 63% over the last 12 months

599 bbl in the 12 months through Jul 2026, against 368 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Last 12 months
Oil output rose 63% over the last 12 monthsMonthly oil production for YOUNG, Aug 2023 to Jul 2026. Oil output rose 63% over the last 12 months. 599 bbl in the 12 months through Jul 2026, against 368 bbl in the 12 months before.Last 12 months: 599 bblbbl per month050100150200Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output rose 63% over the last 12 monthsMonthly oil production for YOUNG, Aug 2023 to Jul 2026. Oil output rose 63% over the last 12 months. 599 bbl in the 12 months through Jul 2026, against 368 bbl in the 12 months before.Last 12 monthsbbl per month050100150200Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 18318, 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 2023

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 timeCivron Petroleum Res., LLC, Jan 2020 to Jun 2023; Calfas Cattle & Oil, LLC, Jul 2023 to Jul 20262020202120222023202420252026Changed Jul 2023Civron Petroleum Res., LLCJan 2020 to Jun 2023Calfas Cattle & Oil, LLCJul 2023 to now
Operators of this lease over timeCivron Petroleum Res., LLC, Jan 2020 to Jun 2023; Calfas Cattle & Oil, LLC, Jul 2023 to Jul 20262020202120222023202420252026Changed Jul 2023Civron Petroleum Res., LLCJan 2020 to Jun 2023Calfas Cattle & Oil, LLCJul 2023 to now

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 18318 in district 01. The API number is the state’s ID for a well.
Wells on YOUNG
API numberWell no.Status
42-325-340812Active
42-325-340821Active
42-325-340834Active
42-325-340863Active
42-325-342465Active
42-325-342496Active

SourceTexas Railroad Commission Wellbore Query, district 01, lease 18318.

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

    Shell Trading (Us) Company, Dorado Oil Company and Truth Resources, L.p. gather it.

    Shell Trading (Us) Company gathers it: 34% of it, on the list since Jul 10, 2023 · Dorado Oil Company gathers it: 33% of it, on the list since Jul 10, 2023 · Truth Resources, L.p. gathers it: 33% of it, on the list since Jul 10, 2023

Companies that used to be listed: Firebird Bulk Carriers, Inc. (gathers it, until Jul 10, 2023); Shell Trading (Us) Company (gathers it, until Jul 10, 2023); Sunray Marketing, LLC (gathers it, until Sep 21, 2020); Plains Marketing, L.p. (gathers it, until Jan 8, 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

100 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
66 not plugged
Horizontal
0
First completion
Jun 18, 2014
Latest permit
Nov 20, 2019
Wells and acres on the permits for Young
API numberWell no.Acreson the permit
42-325-342496100
42-325-342465100
42-325-340812100
42-325-340821100
42-325-340834100
42-325-340863100

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 YOUNG 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 YOUNG
MonthOil producedbblOil soldbblWTI$ per bblHenry Hub$ per MMBtu
Jul 2026Calfas Cattle27157$80.46$2.89
Jun 2026Calfas Cattle850$84.81$3.15
May 2026Calfas Cattle850$102.13$2.94
Apr 2026Calfas Cattle68158$100.32$2.77
Mar 2026Calfas Cattle600$91.38$3.04
Feb 2026Calfas Cattle240$64.51$3.62
Jan 2026Calfas Cattle1260$60.04$7.72
Dec 2025Calfas Cattle74174$57.97$4.26
Nov 2025Calfas Cattle44162$60.06$3.79
Oct 2025Calfas Cattle20$60.89$3.19
Sep 2025Calfas Cattle20$63.96$2.97
Aug 2025Calfas Cattle20$64.86$2.91
Jul 2025Calfas Cattle20$68.39$3.20
Jun 2025Calfas Cattle10$68.17$3.02
May 2025Calfas Cattle40$62.17$3.12
Apr 2025Calfas Cattle400$63.54$3.42
Mar 2025Calfas Cattle400$68.24$4.12
Feb 2025Calfas Cattle400$71.53$4.19
Jan 2025Calfas Cattle300$75.74$4.13
Dec 2024Calfas Cattle190$70.12$3.01
Nov 2024Calfas Cattle72159$69.95$2.12
Oct 2024Calfas Cattle650$71.99$2.20
Sep 2024Calfas Cattle30$70.24$2.28
Aug 2024Calfas Cattle520$76.68$1.99
Jul 2024Calfas Cattle53165$81.80$2.07
Jun 2024Calfas Cattle210$79.77$2.54
May 2024Calfas Cattle170$80.02$2.12
Apr 2024Calfas Cattle86158$85.35$1.60
Mar 2024Calfas Cattle77163$81.28$1.49
Feb 2024Calfas Cattle910$77.25$1.72
Jan 2024Calfas Cattle800$74.15$3.18
Dec 2023Calfas Cattle590$71.90$2.52
Nov 2023Calfas Cattle20$77.69$2.71
Oct 2023Calfas Cattle10$85.64$2.98
Sep 2023Calfas Cattle20$89.43$2.64
Aug 2023Calfas Cattle50$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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Everything on this page connects to the operator, field and county records. Start from any of them.

This lease belongs to

OperatorCalfas Cattle & Oil, LLCFieldFairfieldCountyMedina County

Calfas Cattle & Oil, LLC in Medina County

All Calfas Cattle & Oil, LLC leases →

Fairfield field

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Leases within 10 km

Found by the location of their wells.

New drilling permits in Medina 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 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 18318, 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.