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Royalty Clerk

Texas oil lease · RRC district 8A · Lease 05981

Producing

DEAN "C"

Dean "C" is an oil lease in Cochran County, Texas, operated by Extex Operating Company in the Slaughter field. The Railroad Commission shows 516 bbl of oil in the 12 months through Jul 2026.

Oil lease dossier · 13 wells

516bbl oil, last 12 months−13% vs prior year
Operator
Extex Operating Company
County
Cochran County
Field
Slaughter
RRC lease
8A-05981

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Where it sits

This county

Cochran CountyCochranHockleyLambBaileyCochran County
Cochran County · RRC district 8AOpen Cochran County →
Oil in Jul 2026
4 bbl
Reporting to the state
since Jan 2020
Wells
13
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 fell 13% over the last 12 months

516 bbl in the 12 months through Jul 2026, against 593 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Last 12 months
Oil output fell 13% over the last 12 monthsMonthly oil production for DEAN "C", Aug 2023 to Jul 2026. Oil output fell 13% over the last 12 months. 516 bbl in the 12 months through Jul 2026, against 593 bbl in the 12 months before.Last 12 months: 516 bblbbl per month0255075100Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 13% over the last 12 monthsMonthly oil production for DEAN "C", Aug 2023 to Jul 2026. Oil output fell 13% over the last 12 months. 516 bbl in the 12 months through Jul 2026, against 593 bbl in the 12 months before.Last 12 monthsbbl per month0255075100Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 05981, district 8A. 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 3 times, most recently in Oct 2025

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 timeGrizzly Op of Delaware, LLC, Jan 2020 to Apr 2020; Extex Operating Company, May 2020 to Dec 2021; New Horizon Resources LLC, Jan 2022 to Sep 2025; Extex Operating Company, Oct 2025 to Jul 20262020202120222023202420252026Changed May 2020Changed Jan 2022Changed Oct 2025Grizzly Op of Delaware, LLCJan 2020 to Apr 2020Extex Operating CompanyMay 2020 to Dec 2021New Horizon Resources LLCJan 2022 to Sep 2025Extex Operating CompanyOct 2025 to now
Operators of this lease over timeGrizzly Op of Delaware, LLC, Jan 2020 to Apr 2020; Extex Operating Company, May 2020 to Dec 2021; New Horizon Resources LLC, Jan 2022 to Sep 2025; Extex Operating Company, Oct 2025 to Jul 20262020202120222023202420252026Changed May 2020Changed Jan 2022Changed Oct 2025Grizzly Op of Delaware, LLCJan 2020 to Apr 2020Extex Operating CompanyMay 2020 to Dec 2021New Horizon Resources LLCJan 2022 to Sep 2025Extex Operating CompanyOct 2025 to now

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

Wells

13 wells on this lease

Every well the Railroad Commission links to oil lease 05981 in district 8A. The API number is the state’s ID for a well.
Wells on DEAN "C"
API numberWell no.Status
42-079-014131Shut-in
42-079-014172WActive
42-079-014254WActive
42-079-014295Active
42-079-014326WActive
42-079-014337WActive
42-079-014348Active
42-079-301369Active
42-079-3020811Shut-in
42-079-3020910Shut-in
42-079-320953AActive
42-079-3213112Active
42-079-3213213Active

SourceTexas Railroad Commission Wellbore Query, district 8A, lease 05981.

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

    Phillips 66 Company gathers it.

    100% of it, on the list since Oct 1, 2025

Companies that used to be listed: Occidental Permian Ltd. (gathers it, until Oct 1, 2025); Occidental Permian Ltd. (buys it, until Oct 1, 2025); Genesis Crude Oil, L.p. (gathers it, until Oct 1, 2025).

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

320 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
156 not plugged
Horizontal
0
First completion
Jun 23, 1966
Latest permit
Aug 14, 1985

15 wells are listed on this lease

Each well can have its own unit. The decimal for one well does not have to equal the decimal for another.

Wells and acres on the permits for Dean "C"
API numberWell no.Acreson the permit
42-079-3213112320
42-079-3213213320
42-079-320953A320
42-079-014131–
42-079-014131WS–
42-079-014172W–
42-079-014213–
42-079-014254W–
42-079-014295–
42-079-014326W–
42-079-014337W–
42-079-014348–

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.

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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 DEAN "C" 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.

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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 DEAN "C"
MonthOil producedbblOil soldbblWTI$ per bblHenry Hub$ per MMBtu
Jul 2026Extex Operating40$80.46$2.89
Jun 2026Extex Operating38156$84.81$3.15
May 2026Extex Operating430$102.13$2.94
Apr 2026Extex Operating580$100.32$2.77
Mar 2026Extex Operating700$91.38$3.04
Feb 2026Extex Operating52165$64.51$3.62
Jan 2026Extex Operating600$60.04$7.72
Dec 2025Extex Operating560$57.97$4.26
Nov 2025Extex Operating66164$60.06$3.79
Oct 2025Extex Operating260$60.89$3.19
Sep 2025New Horizon210$63.96$2.97
Aug 2025New Horizon220$64.86$2.91
Jul 2025New Horizon210$68.39$3.20
Jun 2025New Horizon36168$68.17$3.02
May 2025New Horizon420$62.17$3.12
Apr 2025New Horizon810$63.54$3.42
Mar 2025New Horizon65161$68.24$4.12
Feb 2025New Horizon770$71.53$4.19
Jan 2025New Horizon470$75.74$4.13
Dec 2024New Horizon43152$70.12$3.01
Nov 2024New Horizon400$69.95$2.12
Oct 2024New Horizon53171$71.99$2.20
Sep 2024New Horizon420$70.24$2.28
Aug 2024New Horizon460$76.68$1.99
Jul 2024New Horizon750$81.80$2.07
Jun 2024New Horizon55165$79.77$2.54
May 2024New Horizon520$80.02$2.12
Apr 2024New Horizon830$85.35$1.60
Mar 2024New Horizon93170$81.28$1.49
Feb 2024New Horizon810$77.25$1.72
Jan 2024New Horizon89171$74.15$3.18
Dec 2023New Horizon860$71.90$2.52
Nov 2023New Horizon80170$77.69$2.71
Oct 2023New Horizon850$85.64$2.98
Sep 2023New Horizon46171$89.43$2.64
Aug 2023New Horizon430$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

OperatorExtex Operating CompanyFieldSlaughterCountyCochran County

Extex Operating Company in Cochran County

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Slaughter 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 05981, district 8A, 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.