TEXAS · WELLS · IRION COUNTY · API 42-235-35821 · DISTRICT 6E
University 43-4 #1H
Irion County · Spraberry (Trend Area) field · Producing · Horizontal
University 43-4 #1H (API 42-235-35821) is a horizontal well in Irion County operated by Permian Resources Operating LLC, completed December 21, 2014 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued May 31, 2014, permitted to 6,668 ft.
It was permitted by Devon Energy Production CO, L.P. and has since transferred to Permian Resources Operating LLC on the wellbore schedule.
Completion filings report 8 formation tops, including Grayburg, San Andres, Clear Fork, Spraberry.
Its 2 leases have reported 157K barrels of oil and 1.14M mcf of gas since December 2014, last reporting in July 2026. The leases carry 4 wells, so these are lease totals, not this well alone.
Operator of record
Permian Resources Operating LLC
Permitted by Devon Energy Production Co, L.P.; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active (A)
- P-5 last filed
- Nov 25, 2025
- Permits on file
- 608
- Phone
- (432) 695-4222
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Sable Permian Resources LLC |
| Production reports | Permian Resources Operating, LLCthrough Apr 2026 |
| Latest permit | Devon Energy Production Co, L.P.May 31, 2014 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,668
- total depth, ft
- 1
- permits on file
- May 31, 2014
- last permit issued
- Dec 21, 2014
- completed
- 157K
- cumulative oil, bbl
- 1.14M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 2014 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 21, 2014
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 2 leases this well is completed on; they carry 4 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| University 43-4 O-9-20644 | Spraberry (Trend Area) | Permian Resources Operating, LLC | 2 | 43.5K | 558K | Mar 2020 – Jul 2026 |
| University 43-4 O-9-18809 | Lin (Wolfcamp) | Sable Permian Resources, LLC | 2 | 114K | 581K | Dec 2014 – Jun 2020 |
Gas, mcf lease total
Last 12 months 94,074 · prior 12 93,827(+0%)
Oil, barrels lease total
Last 12 months 4,793 · prior 12 5,466(-12%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Devon Energy Production Co, L.P.Dec 2014 → Jul 2016
- 2FDL Operating, LLCAug 2016 → Apr 2022
- 3Sable Permian Resources Land,llcOct 2018 → Dec 2018
- 4Sable Permian Resources, LLCJan 2019 → Jan 2021
- 5Earthstone Operating, LLCMay 2022 → Oct 2023
- 6Permian Resources Operating, LLCNov 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 785414-99 | Drill | Devon Energy Production Co, L.P. | Apr 24, 2014 | May 31, 2014 | Aug 27, 2014 | 9,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 21, 2014 | University 43-4 O-9-20644 | Spraberry (Trend Area) | Permian Resources Operating LLC | Producing | 6,668 |
| Dec 21, 2014 | University 43-4 O-9-18809 | Lin (Wolfcamp) | Sable Permian Resources LLC | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,594 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Grayburg | 1,700 | 894 |
| San Andres | 2,075 | 519 |
| Clear ForkCLEARFORK | 4,000 | -1,406 |
| Spraberry | 5,394 | -2,800 |
| Dean | 6,153 | -3,559 |
| Wolfcamp | 6,281 | -3,687 |
| Canyon | — | — |
| Fusselman | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,901 | 11,375 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 925 | 12.25 | 415 S |
| 5.5 | 11,474 | 8.75 | 1,860 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 | Feb 25, 2020 | Feb 23, 2015 | Yes |
| 00 | Mar 13, 2015 | Feb 23, 2015 | 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 42-235-35821 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-235-35821 → 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/23535821, documented in the API reference.