WELL · 42-353-32159 · DISTRICT 7
Group 4000 Unit A #8A
Nolan County · Group (4000) field · Vertical
Group 4000 Unit A #8A (API 42-353-32159) is a plugged well in Nolan County, plugged June 6, 2025, last operated by Winchester Energy LLC.
The RRC has issued one drilling permit, issued February 12, 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 2 leases have reported 341K barrels of oil and 235K mcf of gas since January 1993, last reporting in July 2026. The leases carry 30 wells, so these are lease totals, not this well alone.
Operator of record
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 schedule | Winchester Energy LLC |
| Production reports | Winchester Energy, LLCthrough Oct 2024 |
| Latest permit | O & G Energy, Inc.Feb 12, 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
- Feb 12, 1991
- last permit issued
- Jul 30, 1991
- completed
- 341K
- cumulative oil, bbl
- 235K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 30, 1991
- Shut in
- —
- Plugged
- Jun 6, 2025
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 2 leases this well is completed on; they carry 30 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Group 4000 Unit O-8-10432 | Group (4000) | Winchester Energy, LLC | 14 | 91.7K | 67.9K | Jan 1993 – Jul 2026 |
| Group 4000 Unit "A" O-8-25971 | Group (4000) | Winchester Energy, LLC | 16 | 249K | 167K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 0 · prior 12 38(-100%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1O & G Energy, Inc.Jan 1993 → Oct 1996
- 2Genie CorporationJan 1993 → Dec 1994
- 3Chisholm ExplorationJan 1995 → Feb 1995
- 4Robertson Resources, Inc.Mar 1995 → Aug 2001
- 5F&H Energy,ltd.Nov 1996 → Jun 1997
- 6Xeric Oil & Gas CorporationSep 2001 → Nov 2003
- 7Alegre Energy, Inc.Dec 2003 → May 2006
- 8Alegre Energy Operating, LPNov 2004 → Sep 2005
- 9Delco Operating Company LPJun 2006 → Jun 2007
- 10Midwestern EnergyJul 2007 → Apr 2015
- 11W & W Production, LLCMay 2015 → Jul 2017
- 12Winchester Energy, LLCDec 2022 → Oct 2024
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 384401-99 | Drill | O & G Energy, Inc. | Feb 8, 1991 | Feb 12, 1991 | Jul 24, 1991 | 4,400 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-8-10432 | — | — | — | — |
| — | — O-8-25971 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,273 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Coleman JunctionBASE COLEMAN JUNCTION | 3,020 | -747 |
| Saddle Creek | 3,880 | -1,607 |
| Cook | 3,961 | -1,688 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,051 | 4,054 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 220 | 12.25 | 220 S |
| 5.5 | 4,197 | 7.875 | 345 S |
| 4.5 | 4,197 | 7.875 | 345 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 →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Aug 21, 1996 | Apr 22, 1996 | — |
| 00 | Jan 8, 1996 | Sep 3, 1991 | Yes |
| 00 | Sep 26, 1991 | Sep 3, 1991 | Yes |
| 00 | Sep 12, 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.
- Wellbore filings for 42-353-32159 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-353-32159 → scanned completion filings
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
- 6.34M
- bbl, all reported
- Nov 2024
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000084399 | H-1 Injection | Plugged Jul 1, 2025 | 3,000 | 1,750 | 3,500–4,054 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 0 · prior 12 0
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/35332159, documented in the API reference.