TEXAS · WELLS · REAGAN COUNTY · UNIVERSITY LEASE · API 42-383-00387 · DISTRICT 6E
University #12C
Reagan County · Big Lake field · Vertical
University #12C (API 42-383-00387) is a plugged well in Reagan County, plugged August 3, 1998, last operated by Apache Corporation.
The RRC has issued one drilling permit, issued May 4, 1990, permitted to 8,575 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 Spraberry, Dean, Wolfcamp, Ellenburger.
Its lease has reported 505K barrels of oil and 3.05M mcf of gas since January 1993, last reporting volume in April 2024. The lease carries 9 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
- 9,758
- Phone
- (713) 954-5500
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Apache Corporation |
| Production reports | Apache Corporationthrough Apr 2024 |
| Latest permit | Marathon Oil CompanyMay 4, 1990 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,575
- total depth, ft
- 1
- permits on file
- May 4, 1990
- last permit issued
- Aug 25, 1987
- completed
- 505K
- cumulative oil, bbl
- 3.05M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2024
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Aug 25, 1987
- Shut in
- —
- Plugged
- Aug 3, 1998
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 9 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| University O-9-12586 | Big Lake (Ellenburger) | Apache Corporation | 9 | 505K | 3.05M | Jan 1993 – Apr 2024 |
Oil, barrels lease total
Last 12 months 0 · prior 12 0
Gas, mcf lease total
Last 12 months 0 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Marathon Oil CompanyJan 1993 → May 2009
- 2Apache CorporationJun 2009 → Apr 2024
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 372865-99 | Drill | Marathon Oil Company | May 2, 1990 | May 4, 1990 | — | 8,575 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Aug 25, 1987 | University O-9-228 | Big Lake | Apache Corporation | Plugged | — |
| — | University O-9-12586 | Big Lake (Ellenburger) | Apache Corporation | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,678 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,531 | 8,575 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 22 | 60 | — | 100 S |
| 10.75 | 2,844 | — | 2,000 S |
| 7.625 | 8,296 | — | 1,200 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Sep 4, 1990 | Jun 7, 1990 | — |
| 00 | Aug 18, 1990 | — | — |
| 00 | Dec 21, 1987 | Dec 8, 1987 | — |
| 00 | Jan 12, 1984 | — | — |
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 42-383-00387 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-383-00387 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it. The University Lands library has no per-well link: then paste it into its 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/38300387, documented in the API reference.