WELL · 42-003-06591 · DISTRICT 8
University 12-E #4
Andrews County · Block 12 East (Ellenburger) field · Vertical
University 12-E #4 (API 42-003-06591) is a plugged well in Andrews County, plugged August 31, 2012, last operated by Contango Resources LLC.
The RRC has issued one drilling permit, issued August 17, 1988, permitted to 7,255 ft.
It was permitted by Union Oil Company Of California and has since transferred to Contango Resources LLC on the wellbore schedule.
Completion filings report one formation top, including Wolfcamp.
Its lease has reported 62K barrels of oil and 385K mcf of gas since January 1993, last reporting in March 2023. The lease carries 3 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Union Oil Company of California; the EWA schedule now lists a different operator.
- Based in
- Andrews, TX
- P-5 status
- Inactive (I)
- P-5 last filed
- Feb 20, 2025
- Permits on file
- 13
- Phone
- (713) 236-7400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Contango Resources LLC |
| Production reports | Sheridan Production Company, LLCthrough Mar 2017 |
| Latest permit | Union Oil Company of CaliforniaAug 17, 1988 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,255
- total depth, ft
- 1
- permits on file
- Aug 17, 1988
- last permit issued
- —
- completed
- 62K
- cumulative oil, bbl
- 385K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Mar 2023
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- —
- Shut in
- —
- Plugged
- Aug 31, 2012
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 "12-E" O-10-420 | Block 12 | Contango Resources, LLC | 3 | 62K | 385K | Jan 1993 – Mar 2023 |
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.
- 1Union Oil Company of CaliforniaJan 1993 → Oct 1994
- 2Dallas Production, Inc.Nov 1994 → Sep 1996
- 3Universal Resources Corp.Oct 1996 → Mar 1999
- 4Questar Expl. and Prod. Co.Apr 1999 → Oct 1999
- 5Maynard Oil Co.Nov 1999 → Apr 2004
- 6Forest Oil Permian CorporationMay 2004 → Dec 2009
- 7Sandridge Expl. and Prod., LLCJan 2010 → Jan 2013
- 8Sheridan Production Company, LLCFeb 2013 → May 2016
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 350263-99 | Recompletion | Union Oil Company of California | Aug 17, 1988 | Aug 17, 1988 | — | 7,255 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-420 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 329 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Wolfcamp | 7,538 | -7,209 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,079 | 7,226 | Perforated |
| 7,622 | 7,648 | Perforated |
| — | 10,136 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 505 | 17.5 | 400 S |
| 9.625 | 4,365 | 12.25 | 2,800 S |
| 7 | 10,269 | 8.625 | 600 S |
| 7 | 10,269 | 8.75 | 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 | Sep 22, 1988 | Aug 29, 1988 | Yes |
| 00 | Sep 13, 1988 | — | — |
| 00 | Jan 12, 1984 | Apr 16, 1975 | — |
| 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 42-003-06591 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-003-06591 → 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/00306591, documented in the API reference.