TEXAS · WELLS · WINKLER COUNTY · UNIVERSITY 31-21 LEASE · API 42-495-31017 · DISTRICT 7B
University 31-21 #1
Winkler County · Little Joe (Ellenburger) field · Vertical
University 31-21 #1 (API 42-495-31017) is a plugged well in Winkler County, plugged November 17, 2023, last operated by Continental Resources Inc..
The RRC has issued one drilling permit, issued December 7, 1978, permitted to 21,000 ft.
It was permitted by Getty Oil CO. and has since transferred to Continental Resources Inc. on the wellbore schedule.
Its lease has reported 123 barrels of oil and 1.39M mcf of gas since January 1993, with no volume in the three years through April 2026.
Operator of record
Permitted by Getty Oil Co.; the EWA schedule now lists a different operator.
- Based in
- Oklahoma City, OK
- P-5 status
- Active (A)
- P-5 last filed
- Dec 3, 2025
- Permits on file
- 552
- Phone
- (405) 234-9000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Continental Resources Inc. |
| Production reports | Continental Resources, Inc.through Apr 2006 |
| Latest permit | Getty Oil Co.Dec 7, 1978 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 21,000
- total depth, ft
- 1
- permits on file
- Dec 7, 1978
- last permit issued
- Jun 1, 1979
- completed
- 123
- cumulative oil, bbl
- 1.39M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2006
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jun 1, 1979
- Shut in
- —
- Plugged
- Nov 17, 2023
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 31-21 G-10-83361 | Little Joe (Ellenburger) | Continental Resources, Inc. | 1 | 123 | 1.39M | Jan 1993 – Apr 2006 |
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.
- 1Texaco E & P Inc.Jan 1993 → May 2002
- 2Chevron U. S. A. Inc.Jun 2002 → Apr 2006
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 38368-99 | Drill | Getty Oil Co. | Dec 7, 1978 | Dec 7, 1978 | Dec 14, 1978 | 21,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 1, 1979 | University 31-21 G-10-83361 | Little Joe (Ellenburger) | Continental Resources Inc. | Plugged | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 19,840 | 20,196 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 20 | 870 | 26 | 1,255 S |
| 13.375 | 4,950 | 17.5 | 4,700 S |
| 9.625 | 11,170 | 12.25 | 2,582 S |
| 13.5 | 17,984 | — | — |
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 | Jan 12, 1984 | Aug 3, 1979 | — |
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 42-495-31017 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-495-31017 → 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/49531017, documented in the API reference.