WELL · 42-105-32428 · DISTRICT 7
University 12-23 #1
Crockett County · Weger West (Grayburg) field · Vertical
University 12-23 #1 (API 42-105-32428) is a well in Crockett County operated by Transierra Exploration Corp., completed February 4, 1982.
The RRC has issued 2 drilling permits between 1979 and 1984, permitted to 9,836 ft.
Completion filings report 5 formation tops, including Grayburg, San Andres, U. Spraberry, L. Spraberry.
Its lease has reported 8.99K barrels of oil and 9.15K mcf of gas since January 1993, last reporting in July 2026.
Operator of record
Irvine, CA · P-5 Y, filed Aug 5, 2016 · 50 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Transierra Exploration Corp. |
| Production reports | Kstone Energy, LLCthrough Apr 2026 |
| Latest permit | Transierra Exploration Corp.Jan 10, 1984 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,836
- total depth, ft
- 2
- permits on file
- Jan 10, 1984
- last permit issued
- Feb 4, 1982
- completed
- 8.99K
- cumulative oil, bbl
- 9.15K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 4, 1982
- Shut in
- —
- Plugged
- —
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| University "12-23" O-9-10703 | Spraberry (Trend Area) | Kstone Energy, LLC | 1 | 8.99K | 9.15K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 235 · prior 12 341(-31%)
Gas, mcf lease total
Last 12 months 0 · prior 12 180(-100%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Marm Oil CompanyJan 1993 → Jun 1995
- 2Remuda Operating CompanyJul 1995 → Feb 2025
- 3Kstone Energy, LLCMar 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 226188-99 | Recompletion | Transierra Exploration Corp. | May 14, 1984 | Jan 10, 1984 | — | 7,100 |
| 56308-99 | Drill | Union Oil Company of California | Aug 23, 1979 | Aug 23, 1979 | Oct 7, 1979 | 9,836 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-10703 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,648 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Grayburg | 2,175 | 473 |
| San Andres | 2,610 | 38 |
| U. Spraberry | 5,210 | -2,562 |
| L. Spraberry | 5,820 | -3,172 |
| Dean | 6,180 | -3,532 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,356 | 2,418 | Perforated |
| 5,660 | 6,025 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 790 | 17.5 | 765 S |
| 2.375 | 2,356 | — | — |
| 8.625 | 3,330 | 11 | 250 S |
| 4.5 | 7,000 | 7.875 | 600 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 | May 29, 1984 | May 17, 1984 | — |
| 00 | May 25, 1984 | May 17, 1984 | — |
| 00 | Jan 12, 1984 | Mar 4, 1982 | — |
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 42-105-32428 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-105-32428 → 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/10532428, documented in the API reference.