WELL · 42-353-32157 · DISTRICT 7

Group 4000 Unit A #16A

Y

Nolan County · Group (4000) field · Injection  · Vertical

Group 4000 Unit A #16A (API 42-353-32157) is a well in Nolan County operated by Winchester Energy LLC, completed September 23, 2022 and listed as injection on the RRC schedule.

The RRC has issued one drilling permit, issued January 15, 1991, permitted to 4,400 ft.

It was permitted by O & G Energy, Inc. and has since transferred to Winchester Energy LLC on the wellbore schedule.

Completion filings report 3 formation tops, including Coleman Junction, Saddle Creek, Cook.

Its lease has reported 249K barrels of oil and 167K mcf of gas since January 1993, last reporting in July 2026. The lease carries 16 wells, so these are lease totals, not this well alone.

Operator of record

Winchester Energy LLC

Permitted by O & G Energy, Inc.; the EWA schedule now lists a different operator.

Houston, TX · P-5 Y, filed Dec 4, 2025 · 47 permits on file · (832) 229-2957

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleWinchester Energy LLC
Production reportsWinchester Energy, LLCthrough Oct 2024
Latest permitO & G Energy, Inc.Jan 15, 1991

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

4,400
total depth, ft
1
permits on file
Jan 15, 1991
last permit issued
Sep 23, 2022
completed
249K
cumulative oil, bbl
167K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Sep 23, 2022
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

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 lease this well is completed on; they carry 16 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Group 4000 Unit "A" O-8-25971Group (4000)Winchester Energy, LLC16249K167KJan 1993 – Jul 2026

Oil, barrels lease total

Last 12 months 0 · prior 12 38(-100%)

0100200300202420252026

Chain of custody

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

  1. 1O & G Energy, Inc.Jan 1993 → Oct 1996
  2. 2F&H Energy,ltd.Nov 1996 → Jun 1997
  3. 3Robertson Resources, Inc.Jul 1997 → Aug 2001
  4. 4Xeric Oil & Gas CorporationSep 2001 → Nov 2003
  5. 5Alegre Energy, Inc.Dec 2003 → May 2006
  6. 6Alegre Energy Operating, LPNov 2004 → Sep 2005
  7. 7Delco Operating Company LPJun 2006 → Jun 2007
  8. 8Midwestern EnergyJul 2007 → Apr 2015
  9. 9W & W Production, LLCMay 2015 → Jul 2017
  10. 10Winchester Energy, LLCDec 2022 → Oct 2024

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
383326-99DrillO & G Energy, Inc.Jan 11, 1991Jan 15, 1991Feb 27, 19914,400

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-8-25971————

Formation tops

As filed on W-2/G-1. Subsea from 2,296 ft elevation.Download CSV →

FormationMD ftSubsea
Coleman JunctionBASE COLEMAN JUNCTION3,020-724
Saddle Creek3,880-1,584
Cook3,961-1,665

Perforations

Perforated and open-hole intervals.

FromToType
3,9613,971Perforated
3,9984,038Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62521012.25150 S
5.54,1977.875345 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
00Sep 11, 2023Jul 20, 2023—
00May 17, 1991Apr 19, 1991Yes
00Apr 29, 1991——

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.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

0
bbl, last 12 reported months
0
bbl, all reported
Nov 2023
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000124711H-1 InjectionNot activated5001,8503,950–4,050

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 0 · prior 12 0

0120222023

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/35332157, documented in the API reference.