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Royalty Clerk

Texas gas well · RRC district 7C · Lease 134430

Producing

COX D

Cox D is a gas well in Crockett County, Texas, operated by Mayjac I, LLC in the Ozona, Ne. (Canyon Sand) field. The Railroad Commission shows 2,388 mcf of gas in the 12 months through Jul 2026.

Gas well dossier · 1 well

2,388mcf gas, last 12 months−10% vs prior year
Operator
Mayjac I, LLC
County
Crockett County
Field
Ozona, Ne. (Canyon Sand)
RRC lease
7C-134430

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Where it sits

This county

Crockett CountyCrockettIrionUptonReaganCrockett County
Crockett County · RRC district 7COpen Crockett County →
Gas in Jul 2026
208 mcf
Reporting to the state
since Jan 2020
Wells
1
Data through
Jul 2026

Production

Month by month, from the state record

What the Railroad Commission says this gas well produced. Oil is in barrels (bbl). Gas is in thousand cubic feet (mcf).

Gas output fell 10% over the last 12 months

2,388 mcf in the 12 months through Jul 2026, against 2,639 mcf in the 12 months before.

  • Gas (bars, left axis)
  • Last 12 months
Gas output fell 10% over the last 12 monthsMonthly gas production for COX D, Aug 2023 to Jul 2026. Gas output fell 10% over the last 12 months. 2,388 mcf in the 12 months through Jul 2026, against 2,639 mcf in the 12 months before.Last 12 months: 2,388 mcfmcf per month0100200300400Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 10% over the last 12 monthsMonthly gas production for COX D, Aug 2023 to Jul 2026. Gas output fell 10% over the last 12 months. 2,388 mcf in the 12 months through Jul 2026, against 2,639 mcf in the 12 months before.Last 12 monthsmcf per month0100200300400Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, gas well 134430, district 7C. 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.

All of the gas went to lease fuel in the last 12 months

Each bar is one month. Colors are the disposition codes the operator reported.

All of the gas went to lease fuel in the last 12 monthsShare of COX D gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to lease fuel in the last 12 months. Share of the lease’s gas by disposition code, per month0%50%100%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
All of the gas went to lease fuel in the last 12 monthsShare of COX D gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to lease fuel in the last 12 months. Share of gas by disposition code0%50%100%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, gas disposition by code, lease 134430, district 7C. 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.

None of the gas was flared in the last 12 months.

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.

Mayjac I, LLC has reported this lease for the whole period

No change of operator in the months we hold.

Operators of this lease over timeMayjac I, LLC, Jan 2020 to Jul 20262020202120222023202420252026Mayjac I, LLCJan 2020 to nowthrough Jul 2026
Operators of this lease over timeMayjac I, LLC, Jan 2020 to Jul 20262020202120222023202420252026Mayjac I, LLCJan 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 gas well 134430 in district 7C. The API number is the state’s ID for a well.
Wells on COX D
API numberWell no.Status
42-105-357425Active

SourceTexas Railroad Commission Wellbore Query, district 7C, lease 134430.

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.

  • Gas from gas wells

    Dcp Operating Company, LP buys it.

    100% of it, on the list since Apr 1, 2017

  • Full well stream

    Ozona Gas Processing Plant gathers it.

    100% of it, on the list since Apr 25, 1990

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

328 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
0
First completion
Mar 30, 1990
Latest permit
Feb 1, 1990
Wells and acres on the permits for Cox D
API numberWell no.Acreson the permit
42-105-357425328

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 COX D sold each month.

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

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 “Gas sold” volume times your decimal. Scroll sideways on a phone.
Monthly production, disposition and prices for COX D
MonthGas producedmcfGas soldmcf, codes 2+3Flaredmcf, code 4WTI$ per bblHenry Hub$ per MMBtu
Jul 2026Mayjac I,20800$80.46$2.89
Jun 2026Mayjac I,20000$84.81$3.15
May 2026Mayjac I,19900$102.13$2.94
Apr 2026Mayjac I,19300$100.32$2.77
Mar 2026Mayjac I,19600$91.38$3.04
Feb 2026Mayjac I,18200$64.51$3.62
Jan 2026Mayjac I,20000$60.04$7.72
Dec 2025Mayjac I,19900$57.97$4.26
Nov 2025Mayjac I,19900$60.06$3.79
Oct 2025Mayjac I,20800$60.89$3.19
Sep 2025Mayjac I,19600$63.96$2.97
Aug 2025Mayjac I,20800$64.86$2.91
Jul 2025Mayjac I,19700$68.39$3.20
Jun 2025Mayjac I,20400$68.17$3.02
May 2025Mayjac I,20800$62.17$3.12
Apr 2025Mayjac I,20500$63.54$3.42
Mar 2025Mayjac I,21500$68.24$4.12
Feb 2025Mayjac I,18600$71.53$4.19
Jan 2025Mayjac I,24900$75.74$4.13
Dec 2024Mayjac I,20900$70.12$3.01
Nov 2024Mayjac I,20700$69.95$2.12
Oct 2024Mayjac I,21900$71.99$2.20
Sep 2024Mayjac I,31900$70.24$2.28
Aug 2024Mayjac I,22100$76.68$1.99
Jul 2024Mayjac I,21600$81.80$2.07
Jun 2024Mayjac I,21100$79.77$2.54
May 2024Mayjac I,21200$80.02$2.12
Apr 2024Mayjac I,19600$85.35$1.60
Mar 2024Mayjac I,20700$81.28$1.49
Feb 2024Mayjac I,19700$77.25$1.72
Jan 2024Mayjac I,20300$74.15$3.18
Dec 2023Mayjac I,20000$71.90$2.52
Nov 2023Mayjac I,19500$77.69$2.71
Oct 2023Mayjac I,18900$85.64$2.98
Sep 2023Mayjac I,14100$89.43$2.64
Aug 2023Mayjac I,9600$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

OperatorMayjac I, LLCFieldOzona, Ne. (Canyon Sand)CountyCrockett County

Mayjac I, LLC in Crockett County

All Mayjac I, LLC leases →

Ozona, Ne. (Canyon Sand) field

All leases in this field →

Leases within 10 km

Found by the location of their wells.

New drilling permits in Crockett 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 “Gas sold” volume for the month the check covers and multiply it by your decimal. The answer should match the mcf 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, gas well 134430, district 7C, 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.