WELL · 42-105-35943 · DISTRICT 7
University 23-29 #4
Crockett County · Bachelor Hill (Grayburg) field · Vertical
University 23-29 #4 (API 42-105-35943) is a plugged well in Crockett County, plugged September 19, 2022, last operated by Wtg Exploration.
The RRC has issued one drilling permit, issued April 16, 1991, permitted to 1,730 ft.
It was permitted by Accell Natural Gas Company and has since transferred to Wtg Exploration on the wellbore schedule.
Completion filings report 2 formation tops, including Queen, Grayburg.
Its lease has reported 52.3K barrels of oil and 38.3K mcf of gas since January 1993, last reporting in July 2026. The lease carries 3 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Accell Natural Gas Company; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Dec 4, 2025 · 269 permits on file · (432) 664-8876
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | WTG Exploration |
| Production reports | WTG Explorationthrough Sep 2023 |
| Latest permit | Accell Natural Gas CompanyApr 16, 1991 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 1,730
- total depth, ft
- 1
- permits on file
- Apr 16, 1991
- last permit issued
- May 25, 1991
- completed
- 52.3K
- cumulative oil, bbl
- 38.3K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 25, 1991
- Shut in
- —
- Plugged
- Sep 19, 2022
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 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| University 23-29 O-9-13080 | Bachelor Hill (Grayburg) | WTG Exploration | 3 | 52.3K | 38.3K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 0 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Accell Natural Gas CompanyJan 1993 → Sep 1998
- 2WTG ExplorationOct 1998 → Sep 2023
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 386197-99 | Drill | Accell Natural Gas Company | Mar 28, 1991 | Apr 16, 1991 | Apr 29, 1991 | 1,730 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-13080 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,676 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 1,646 | 1,677 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 4.5 | 1,740 | 8.75 | 510 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 | Jun 24, 1991 | Jun 11, 1991 | Yes |
| 00 | Jun 18, 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 42-105-35943 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-105-35943 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. 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/10535943, documented in the API reference.