WELL · 42-461-36199 · DISTRICT 7
University 58-9 #4
Upton County · Spraberry (Trend Area) field · Vertical
University 58-9 #4 (API 42-461-36199) is a plugged well in Upton County, plugged December 19, 2019, last operated by Pioneer Natural Res. USA Inc..
The RRC has issued one drilling permit (amended once), issued October 31, 2008, permitted to 11,000 ft.
Completion filings report 3 formation tops, including Spraberry, Dean, Wolfcamp.
Its lease has reported 311K barrels of oil and 525K mcf of gas since January 2008, last reporting in July 2026. The lease carries 6 wells, so these are lease totals, not this well alone.
Operator of record
- Based in
- Spring, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jul 8, 2026
- Permits on file
- 15,628
- Phone
- (972) 444-4001
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Pioneer Natural Res. USA Inc. |
| Production reports | Pioneer Natural Res. USA, Inc.through Nov 2020 |
| Latest permit | Pioneer Natural Res. USA, Inc.Oct 31, 2008 |
- 11,000
- total depth, ft
- 2
- permits on file
- Oct 31, 2008
- last permit issued
- Sep 21, 2010
- completed
- 311K
- cumulative oil, bbl
- 525K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2008 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 21, 2010
- Shut in
- —
- Plugged
- Dec 19, 2019
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 6 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| University "58-9" O-9-16492 | Spraberry (Trend Area) | Pioneer Natural Res. USA, Inc. | 6 | 311K | 525K | Jan 2008 – Jul 2026 |
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.
- 1Pioneer Natural Res. USA, Inc.Feb 2008 → Apr 2020
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 673869-98 | Drill | Pioneer Natural Res. USA, Inc. | Jan 27, 2010 | Oct 31, 2008 | Jul 29, 2010 | 11,000 |
| 673869-99 | Drill | Pioneer Natural Res. USA, Inc. | Oct 27, 2008 | Oct 31, 2008 | Jul 29, 2010 | 10,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 21, 2010 | University 58-9 O-9-16492 | Spraberry (Trend Area) | Pioneer Natural Res. USA Inc. | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,691 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,795 | 7,643 | Perforated |
| 8,186 | 8,286 | Perforated |
| 8,468 | 10,194 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 546 | 11 | 300 S |
| 4.5 | 10,257 | 7.875 | 1,355 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 | Apr 29, 2011 | Oct 21, 2010 | Yes |
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 42-461-36199 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-36199 → 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/46136199, documented in the API reference.