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Royalty Clerk

Texas oil lease

Stopped

CORNWALLIS

Cornwallis is an oil lease in Glasscock County, Texas, in the W. Z. B. (Grayburg) field. The state's records show no oil or gas from it since March 2025, through August 2026.

This lease has stopped

Noneoil or gas in the records

No oil or gas reported, through Aug 2026.

Last operator
Oxyrock Operating, LLC
County
Glasscock County
Field
W. Z. B. (Grayburg)
RRC lease
08-61385

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First report
Mar 2025
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Stopped lease

Cornwallis, 2025–2026

Its whole life in the Railroad Commission’s monthly reports, which start in January 1993; it first reported in March 2025. Royalty owners and their heirs can still be on the county roll after the checks stop.

  1. First reportMar 2025
  2. Last operatorOxyrock Operating, LLCfrom Mar 2025
  3. Newest state monthAug 2026
Oil sold since March 2025
0barrels

Source: Texas Railroad Commission production reports since January 1993 (oil and gas sold); EIA prices, through August 2026.

Every year as a table
Cornwallis: oil and gas sold each year
YearMonthsOil sold, bblGas sold, mcfSold for
2026 *800$0
20251000$0

* Part of the year: the records run through August 2026.

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Wells on this lease and around it

Where the state's map puts this lease's well, and what has been drilled or permitted within about 2 miles of it.
Map of the Cornwallis lease in Glasscock County, Texas: its well ringed, among 405 wells and 68 recent drilling locations in a picture about 6 miles across.
  • This lease1Its well, ringed on the map: not producing
  • Drilling locations68Permits issued in the last two years
  • Producing wells311On a lease reporting production now
  • Not producing23Shut in, inactive or no lease on record
  • Plugged71The state's wellbore record says plugged

The ringed dot is this lease's well, where the Railroad Commission's map puts it. The other dots are wells and drilling permits of the last 24 months on the land around it; the counts are for everything in the picture, which is about 6 miles across. The thin brown lines are the original land surveys; where there is room, a survey carries its abstract number, the number deeds and division orders cite. Sources: Railroad Commission of Texas well layers, drilling permit files and survey lines, US Census Bureau county outlines, base map from USGS The National Map.

See the whole Texas well map

A one-page map of this lease to print, for a lawyer, a buyer or a probate file.

Use this map on your site

You may show this map on any site, unchanged. Keep the credit line and its link to Royalty Clerk under the map. The picture updates by itself as the state records new wells and permits.

Download the picture (WebP)
<a href="https://royaltyclerk.com/texas/leases/cornwallis-08-61385"><img src="https://royaltyclerk.com/maps/lease-wells/cornwallis-08-61385.svg" alt="Map of the Cornwallis lease in Glasscock County, Texas: its well ringed, among 405 wells and 68 recent drilling locations in a picture about 6 miles across." width="1000" height="951" loading="lazy" style="max-width:100%;height:auto;border:0"></a>
<p style="margin:4px 0 0;font-size:14px">Map: <a href="https://royaltyclerk.com/texas/leases/cornwallis-08-61385">Wells on the Cornwallis lease, Glasscock County, Texas</a> by Royalty Clerk, from Railroad Commission of Texas records</p>

Production by month

No production to chart

The state shows zero oil and zero gas for all 18 months we hold (Mar 2025 to Aug 2026). A lease that is shut in or newly reported looks like this. The ledger below lists each month.

Where the gas went

No gas disposition reported for this lease

The operator has not reported where the gas went in the months we hold.

1 well on this lease

Wells on CORNWALLIS
API numberWellStatusCompleted
42-173-38959Cornwallis 1DNot pluggedDec 12, 2023

SourceTexas Railroad Commission production records and full wellbore file.

637.36 acres on the newest permit

Check your decimal on this lease
Permits for Cornwallis
API numberWell no.Acreson the permit
42-173-389591D637.36

SourceRailroad Commission drilling permits, Oct 31, 2026 (source 1, source 2).

Unit decimal checker

Estimate your royalty

18 months, newest first

Ledger for CORNWALLIS
MonthOil producedbblOil soldbblWTI$/bblHenry Hub$/MMBtu
Aug 202600$83.90$2.78
Jul 202600$80.46$2.89
Jun 202600$84.81$3.15
May 202600$102.13$2.94
Apr 202600$100.32$2.77
Mar 202600$91.38$3.04
Feb 202600$64.51$3.62
Jan 202600$60.04$7.72
Dec 202500$57.97$4.26
Nov 202500$60.06$3.79
Oct 202500$60.89$3.19
Sep 202500$63.96$2.97
Aug 202500$64.86$2.91
Jul 202500$68.39$3.20
Jun 202500$68.17$3.02
May 202500$62.17$3.12
Apr 202500$63.54$3.42
Mar 202500$68.24$4.12

SourceTexas Railroad Commission Production Data Query, through Aug 2026. Prices: EIA, through Oct 2026. Updated Oct 30, 2026.

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Nearby

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 →

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