TEXAS · WELLS · PANOLA COUNTY · API 42-365-32011 · DISTRICT 06

Cgu 21 #4

Y

Panola County · Carthage (Cotton Valley) field · Producing  · Vertical

Cgu 21 #4 (API 42-365-32011) is a well in Panola County operated by Tgnr East Texas LLC, completed June 1, 1989 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended twice), issued December 30, 1988, permitted to 9,850 ft.

It was permitted by Union Pacific Resources Company and has since transferred to Tgnr East Texas LLC on the wellbore schedule.

Completion filings report 5 formation tops, including Rodessa, James Lime, Pettit, Travis Peak.

Its 3 leases have reported 54.8K barrels of oil and 2.27M mcf of gas since January 1993, last reporting in July 2026. The leases carry 2 wells, so these are lease totals, not this well alone.

Operator of record

TGNR East Texas LLC

Permitted by Union Pacific Resources Company; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active (A)
P-5 last filed
Feb 4, 2026
Permits on file
41
Phone
(346) 308-2250

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleUnion Pacific Resources Company
Production reportsTGNR East Texas LLCthrough Apr 2026
Latest permitUnion Pacific Resources CompanyNov 14, 1990

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

9,850
total depth, ft
3
permits on file
Nov 14, 1990
last permit issued
Jun 1, 1989
completed
54.8K
cumulative oil, bbl
2.27M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jun 1, 1989
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active (A)

Surface location

No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the 3 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Cgu 21 G-6-131171Carthage (Cotton Valley)TGNR East Texas LLC101.71MJan 1993 – Jul 2026
Cooke, J.W. O-6-12772Carthage (Travis Peak-Cooke)TGNR East Texas LLC154.8K561KJan 1993 – Jul 2026
— O-6-12595——000—

Gas, mcf lease total

Last 12 months 8,599 · prior 12 9,107(-6%)

05001K202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1Union Pacific Resources CompanyJan 1993 → Jan 2001
  2. 2Rme Petroleum CompanyFeb 2001 → Nov 2002
  3. 3Anadarko E&P Company LPDec 2002 → Dec 2012
  4. 4Anadarko E&P Onshore LLCJan 2013 → Nov 2016
  5. 5Cci East Texas Upstream LLCDec 2016 → Jan 2021
  6. 6TGNR East Texas LLCFeb 2021 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
354789-97Field transferUnion Pacific Resources CompanyNov 14, 1990Nov 14, 1990—9,850
354789-98DrillUnion Pacific Resources CompanyJul 21, 1989Jul 24, 1989—9,850
354789-99DrillUnion Pacific Resources CompanyDec 30, 1988Dec 30, 1988—10,850

Completions

CompletedLeaseFieldOperatorStatusDepth
Jun 21, 1989Cooke J.W. O-6-12772Carthage (Travis Peak-Cooke)TGNR East Texas LLCShut In · shut in Jan 1, 20029,850
Jun 1, 1989Cgu 21 G-6-131171Carthage (Cotton Valley)TGNR East Texas LLCProducing9,850
Jun 21, 1989Cooke J. W. O-6-12595Carthage (Travis Peak-Woolworth)Union Pacific Resources CompanyNot on Schedule—

Formation tops

As filed on W-2/G-1. Subsea from 355 ft elevation.Download CSV →

FormationMD ftSubsea
Rodessa5,370-5,015
James Lime5,740-5,385
PettitUPPER PETTIT6,000-5,645
PettitLOWER PETTIT6,150-5,795
Travis Peak6,300-5,945
Travis Peak6,350-5,995
Cotton Valley8,300-7,945

Perforations

Perforated and open-hole intervals.

FromToType
6,3246,358Perforated
8,5529,654Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.752,51513.5780 S
2.8756,8889.875675 S
4.59,8329.8751,192 S

Completion filings

W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →

SuffixFiledW-2 / G-1 dateLogs referenced
00Feb 14, 1991Aug 15, 1990—
00Jan 29, 1991——
00Dec 28, 1989Aug 4, 1989Yes
00Dec 14, 1989Oct 31, 1989—
00Nov 18, 1989——
00Jul 20, 1989Jun 19, 1989Yes
00Jul 15, 1989——

The source documents

Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.

Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.

About this data

Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.

New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease

Developers: this page as JSON is GET /v1/data/wells/36532011, documented in the API reference.