WELL · 42-383-33323 · DISTRICT 7
University a 4 #1
Reagan County · Spraberry (Trend Area) field · Vertical
University A 4 #1 (API 42-383-33323) is a plugged well in Reagan County, plugged September 13, 1995, last operated by Costilla Petroleum Corporation.
The RRC has issued 2 drilling permits between 1984 and 1985, permitted to 7,500 ft.
It was permitted by Costex Resources, Inc. and has since transferred to Costilla Petroleum Corporation on the wellbore schedule.
Completion filings report 9 formation tops, including Spraberry, U. Spraberry, U/Spraberry, L. Spraberry.
Its lease has reported 620 barrels of oil and 18 mcf of gas since January 1993, last reporting in November 1995.
Operator of record
Costilla Petroleum Corporation
Permitted by Costex Resources, Inc.; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Jan 5, 1998 · 120 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Costilla Petroleum Corporation |
| Production reports | Costilla Petroleum Corporationthrough Mar 1995 |
| Latest permit | Costex Resources, Inc.Aug 23, 1985 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,500
- total depth, ft
- 2
- permits on file
- Aug 23, 1985
- last permit issued
- Sep 21, 1985
- completed
- 620
- cumulative oil, bbl
- 18
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Nov 1995
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 21, 1985
- Shut in
- —
- Plugged
- Sep 13, 1995
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 "a" "4" O-9-11292 | Spraberry (Trend Area) | Costilla Petroleum Corporation | 1 | 620 | 18 | Jan 1993 – Nov 1995 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Costilla Petroleum CorporationJan 1993 → Sep 1993
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 283483-99 | Recompletion | Costex Resources, Inc. | Aug 22, 1985 | Aug 23, 1985 | — | 7,500 |
| 259339-99 | Drill | Costex Resources, Inc. | Nov 29, 1984 | Nov 29, 1984 | — | 6,914 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-11292 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,735 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,915 | 6,796 | Perforated |
| 6,437 | 6,949 | Perforated |
| 6,949 | 7,437 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 762 | 11 | 400 S |
| 4.5 | 6,929 | 7.875 | 1,215 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 | Dec 3, 1985 | Nov 22, 1985 | — |
| 00 | Nov 6, 1985 | Oct 7, 1985 | — |
| 00 | May 7, 1985 | Apr 26, 1985 | — |
| 00 | May 3, 1985 | — | — |
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 42-383-33323 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-383-33323 → 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/38333323, documented in the API reference.