WELL · 42-103-34511 · DISTRICT 8
University 1 J #1
Crane County · Dune East (Wolfcamp) field · Vertical
University 1 J #1 (API 42-103-34511) is a plugged well in Crane County, plugged October 18, 1999, last operated by Concho Resources Inc..
The RRC has issued one drilling permit (amended once), issued April 18, 1997, permitted to 9,500 ft.
It was permitted by Costilla Energy, Inc. and has since transferred to Concho Resources Inc. on the wellbore schedule.
Completion filings report 6 formation tops, including Clear Fork, L. Clearfork, Spraberry, L. Spraberry.
Its lease has reported 19.7K barrels of oil and 11.7K mcf of gas since June 1997, last reporting in December 1999.
Operator of record
Permitted by Costilla Energy, Inc.; the EWA schedule now lists a different operator.
- Based in
- Oklahoma City, OK
- P-5 status
- Inactive (I)
- P-5 last filed
- Jul 21, 2003
- Permits on file
- 138
- Phone
- (432) 683-7443
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Concho Resources Inc. |
| Production reports | Concho Resources Inc.through Nov 1999 |
| Latest permit | Costilla Energy, Inc.Apr 18, 1997 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,500
- total depth, ft
- 2
- permits on file
- Apr 18, 1997
- last permit issued
- Jun 4, 1997
- completed
- 19.7K
- cumulative oil, bbl
- 11.7K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jun 1997 THROUGH Dec 1999
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jun 4, 1997
- Shut in
- —
- Plugged
- Oct 18, 1999
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 1 "J" O-10-35443 | Dune, East (Wolfcamp) | Concho Resources Inc. | 1 | 19.7K | 11.7K | Jun 1997 – Dec 1999 |
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 Energy, Inc.Jun 1997 → Nov 1998
- 2Concho Resources Inc.Dec 1998 → Jul 1999
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 461336-98 | Drill | Costilla Energy, Inc. | May 21, 1997 | Apr 18, 1997 | — | 9,500 |
| 461336-99 | Drill | Costilla Energy, Inc. | Apr 18, 1997 | Apr 18, 1997 | May 3, 1997 | 9,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-35443 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,740 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Clear ForkCLEARFORK | 6,190 | -3,450 |
| L. Clearfork | 6,410 | -3,670 |
| Spraberry | 6,800 | -4,060 |
| L. Spraberry | 7,380 | -4,640 |
| Detrital | 7,685 | -4,945 |
| Wolfcamp | 7,889 | -5,149 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,912 | 7,928 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 390 | 17.5 | 450 S |
| 9.625 | 4,600 | 12.25 | 600 S |
| 5.5 | 7,930 | 7.875 | 110 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 | Oct 2, 1997 | Jul 1, 1997 | Yes |
| 00 | Sep 23, 1997 | — | — |
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 42-103-34511 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-103-34511 → 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/10334511, documented in the API reference.