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Royalty Clerk

Texas oil lease · RRC district 7B · Lease 02972

Shut in

COX, E. S.

Cox, E. S. is an oil lease in Nolan County, Texas, operated by Grayrock Energy II, LLC in the Lake Trammel (Strawn Reef) field.

Oil lease dossier · 3 wells

0bbl oil, last 12 months
Operator
Grayrock Energy II, LLC
County
Nolan County
Field
Lake Trammel (Strawn Reef)
RRC lease
7B-02972

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Where it sits

This county

Nolan CountyNolanTaylorMitchellFisherJonesCokeScurryNolan County
Nolan County · RRC district 7BOpen Nolan County →
Oil in Jun 2026
0 bbl
Reporting to the state
since Jan 2020
Wells
3
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).

No production to chart

The state shows zero oil and zero gas for all 30 months we hold (Aug 2023 to Jul 2026). A lease that is shut in or newly reported looks like this. The ledger below lists each month.

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 Jan 2024

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 timeRover Petroleum Operating, LLC, Jan 2020 to Dec 2023; Grayrock Energy II, LLC, Jan 2024 to Jun 20262020202120222023202420252026Changed Jan 2024Rover Petroleum Operating, LLCJan 2020 to Dec 2023Grayrock Energy II, LLCJan 2024 to now
Operators of this lease over timeRover Petroleum Operating, LLC, Jan 2020 to Dec 2023; Grayrock Energy II, LLC, Jan 2024 to Jun 20262020202120222023202420252026Changed Jan 2024Rover Petroleum Operating, LLCJan 2020 to Dec 2023Grayrock Energy II, LLCJan 2024 to now

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

Wells

3 wells on this lease

Every well the Railroad Commission links to oil lease 02972 in district 7B. The API number is the state’s ID for a well.
Wells on COX, E. S.
API numberWell no.Status
42-353-011401Active
42-353-0117132Active
42-353-32717109Active

SourceTexas Railroad Commission Wellbore Query, district 7B, lease 02972.

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

    Transoil Marketing, LLC gathers it.

    100% of it, on the list since Nov 1, 2015

  • Gas from oil wells

    Wtg Gas Processing, L.p. buys and gathers it.

    Wtg Gas Processing, L.p. buys it: 100% of it, on the list since May 1, 2004 · Wtg Gas Processing, L.p. gathers it: 100% of it, on the list since May 1, 2004

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

5,923.51 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
64 not plugged
Horizontal
0
First completion
Jan 12, 1984
Latest permit
Jan 4, 2011

The wells on this lease state different acreage

The permits state between 40 and 5,923.51 acres. Use the acres from your own division order for the well you are paid on.

Wells and acres on the permits for Cox, E. S.
API numberWell no.Acreson the permit
42-353-01170315,923.51
42-353-327171095,923.11
42-353-01140140
42-353-0116930–
42-353-0117132–
42-353-0117536–

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 COX, E. S. 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 “Oil sold” volume times your decimal. Scroll sideways on a phone.
Monthly production, disposition and prices for COX, E. S.
MonthOil producedbblOil soldbblWTI$ per bblHenry Hub$ per MMBtu
Jul 2026No report––$80.46$2.89
Jun 2026Grayrock Energy00$84.81$3.15
May 2026Grayrock Energy00$102.13$2.94
Apr 2026Grayrock Energy00$100.32$2.77
Mar 2026Grayrock Energy00$91.38$3.04
Feb 2026Grayrock Energy00$64.51$3.62
Jan 2026No report––$60.04$7.72
Dec 2025No report––$57.97$4.26
Nov 2025No report––$60.06$3.79
Oct 2025Grayrock Energy00$60.89$3.19
Sep 2025Grayrock Energy00$63.96$2.97
Aug 2025Grayrock Energy00$64.86$2.91
Jul 2025Grayrock Energy00$68.39$3.20
Jun 2025Grayrock Energy00$68.17$3.02
May 2025Grayrock Energy00$62.17$3.12
Apr 2025Grayrock Energy00$63.54$3.42
Mar 2025Grayrock Energy00$68.24$4.12
Feb 2025No report––$71.53$4.19
Jan 2025Grayrock Energy00$75.74$4.13
Dec 2024Grayrock Energy00$70.12$3.01
Nov 2024Grayrock Energy00$69.95$2.12
Oct 2024Grayrock Energy00$71.99$2.20
Sep 2024Grayrock Energy00$70.24$2.28
Aug 2024Grayrock Energy00$76.68$1.99
Jul 2024Grayrock Energy00$81.80$2.07
Jun 2024No report––$79.77$2.54
May 2024Grayrock Energy00$80.02$2.12
Apr 2024Grayrock Energy00$85.35$1.60
Mar 2024Grayrock Energy00$81.28$1.49
Feb 2024Grayrock Energy00$77.25$1.72
Jan 2024Grayrock Energy00$74.15$3.18
Dec 2023Rover Petroleum00$71.90$2.52
Nov 2023Rover Petroleum00$77.69$2.71
Oct 2023Rover Petroleum00$85.64$2.98
Sep 2023Rover Petroleum00$89.43$2.64
Aug 2023Rover Petroleum00$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).

Check your statements

Do your checks match this lease?

Upload your statements for COX, E. S.. We compare volumes, prices, deductions and timing with the state record and give you the exact question to ask Grayrock Energy II, LLC.

Check my statementTry a sample owner
  • A month that was never paid
  • Your share of the barrels and mcf
  • The price against WTI and Henry Hub
  • Fees taken on gas
  • Late payment interest

Around this lease

Walk the neighborhood

Everything on this page connects to the operator, field and county records. Start from any of them.

This lease belongs to

OperatorGrayrock Energy II, LLCFieldLake Trammel (Strawn Reef)CountyNolan County

Grayrock Energy II, LLC in Nolan County

All Grayrock Energy II, LLC leases →

Lake Trammel (Strawn Reef) field

  • ENEXCO

    2,116 bbl last 12 months

All leases in this field →

Leases within 10 km

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 02972, district 7B, 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.