WELL · 42-383-34051 · DISTRICT 7
University #223
Reagan County · Big Lake field · Vertical
University #223 (API 42-383-34051) is a plugged well in Reagan County, plugged May 29, 2024, last operated by Apache Corporation.
The RRC has issued one drilling permit, issued September 26, 1990, permitted to 2,950 ft.
It was permitted by Marathon Oil Company and has since transferred to Apache Corporation on the wellbore schedule.
Completion filings report 4 formation tops, including Yates, Seven Rivers, Queen, Grayburg.
Its lease has reported 4.85M barrels of oil and 2.24M mcf of gas since January 1993, last reporting in July 2026. The lease carries 124 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Marathon Oil Company; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Dec 3, 2025
- Permits on file
- 9,754
- Phone
- (713) 954-5500
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Apache Corporation |
| Production reports | Apache Corporationthrough Dec 2024 |
| Latest permit | Marathon Oil CompanySep 26, 1990 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 2,950
- total depth, ft
- 1
- permits on file
- Sep 26, 1990
- last permit issued
- May 14, 2019
- completed
- 4.85M
- cumulative oil, bbl
- 2.24M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 14, 2019
- Shut in
- —
- Plugged
- May 29, 2024
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 124 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| University O-9-228 | Big Lake | Apache Corporation | 124 | 4.85M | 2.24M | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 0 · prior 12 175(-100%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Marathon Oil CompanyJan 1993 → May 2009
- 2Apache CorporationJun 2009 → Dec 2024
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 378347-99 | Drill | Marathon Oil Company | Sep 24, 1990 | Sep 26, 1990 | Dec 8, 1990 | 2,950 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-228 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,714 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 1,760 | 954 |
| Seven Rivers | 1,890 | 824 |
| Queen | 2,354 | 360 |
| GrayburgGRAYBURG/SAN ANDRES | 2,624 | 90 |
| Queen | 2,654 | 60 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,860 | 2,872 | Open hole |
| 2,860 | 2,958 | Perforated |
| 2,950 | 2,958 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 809 | 12.25 | 440 S |
| 7 | 2,860 | 8.75 | 700 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 28, 2019 | Jun 18, 2019 | — |
| 00 | Jun 21, 1996 | Jun 4, 1996 | — |
| 00 | Apr 2, 1991 | Mar 4, 1991 | Yes |
| 00 | Mar 11, 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 42-383-34051 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-383-34051 → 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/38334051, documented in the API reference.