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Royalty Clerk

Texas oil lease · RRC district 08 · Lease 61385

Shut in

CORNWALLIS

Cornwallis is an oil lease in Glasscock County, Texas, operated by Oxyrock Operating, LLC in the W. Z. B. (Grayburg) field.

Oil lease dossier · 1 well

0bbl oil, last 12 months
Operator
Oxyrock Operating, LLC
County
Glasscock County
Field
W. Z. B. (Grayburg)
RRC lease
08-61385

Own a share of this lease?

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Where it sits

This county

Glasscock CountyGlasscockMitchellMartinSterlingMidlandHowardGlasscock County
Glasscock County · RRC district 08Open Glasscock County →
Oil in Jul 2026
0 bbl
Reporting to the state
since Mar 2025
Wells
1
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).

No production to chart

The state shows zero oil and zero gas for all 17 months we hold (Mar 2025 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.

Oxyrock Operating, LLC has reported this lease for the whole period

No change of operator in the months we hold.

Operators of this lease over timeOxyrock Operating, LLC, Mar 2025 to Jul 20262026Oxyrock Operating, LLCMar 2025 to nowthrough Jul 2026
Operators of this lease over timeOxyrock Operating, LLC, Mar 2025 to Jul 20262026Oxyrock Operating, LLCMar 2025 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 oil lease 61385 in district 08. The API number is the state’s ID for a well.
Wells on CORNWALLIS
API numberWell no.Status
42-173-389591DActive

SourceTexas Railroad Commission Wellbore Query, district 08, lease 61385.

Unit and wells

637.36 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
Dec 12, 2023
Latest permit
May 11, 2023
Wells and acres on the permits for Cornwallis
API numberWell no.Acreson the permit
42-173-389591D637.36

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 CORNWALLIS 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

17 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 CORNWALLIS
MonthOil producedbblOil soldbblWTI$ per bblHenry Hub$ per MMBtu
Jul 2026Oxyrock Operating,00$80.46$2.89
Jun 2026Oxyrock Operating,00$84.81$3.15
May 2026Oxyrock Operating,00$102.13$2.94
Apr 2026Oxyrock Operating,00$100.32$2.77
Mar 2026Oxyrock Operating,00$91.38$3.04
Feb 2026Oxyrock Operating,00$64.51$3.62
Jan 2026Oxyrock Operating,00$60.04$7.72
Dec 2025Oxyrock Operating,00$57.97$4.26
Nov 2025Oxyrock Operating,00$60.06$3.79
Oct 2025Oxyrock Operating,00$60.89$3.19
Sep 2025Oxyrock Operating,00$63.96$2.97
Aug 2025Oxyrock Operating,00$64.86$2.91
Jul 2025Oxyrock Operating,00$68.39$3.20
Jun 2025Oxyrock Operating,00$68.17$3.02
May 2025Oxyrock Operating,00$62.17$3.12
Apr 2025Oxyrock Operating,00$63.54$3.42
Mar 2025Oxyrock Operating,00$68.24$4.12

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 CORNWALLIS. We compare volumes, prices, deductions and timing with the state record and give you the exact question to ask Oxyrock Operating, 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

OperatorOxyrock Operating, LLCFieldW. Z. B. (Grayburg)CountyGlasscock County

Oxyrock Operating, LLC in Glasscock County

All Oxyrock Operating, LLC leases →

W. Z. B. (Grayburg) field

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 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 61385, district 08, 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.