TEXAS · WELLS · ANDREWS COUNTY · UNIVERSITY 6-23 LEASE · API 42-003-41442 · DISTRICT 7B
University 6-23 #4
Andrews County · Spraberry (Trend Area) field · Shut In · Vertical
University 6-23 #4 (API 42-003-41442) is a well in Andrews County operated by Diamondback E&P LLC, completed May 4, 2012 and listed as shut in on the RRC schedule, shut in April 1, 2017.
The RRC has issued 2 drilling permits in 2010, permitted to 11,550 ft.
It was permitted by Opal Resources Operating CO.,LLC and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Clear Fork, Spraberry, Dean, Wolfcamp.
Its lease has reported 83.9K barrels of oil and 123K mcf of gas since June 2010, last reporting volume in April 2026. The lease carries 7 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Opal Resources Operating Co.,llc; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 4, 2026
- Permits on file
- 5,251
- Phone
- (432) 221-7400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Diamondback E&P LLC |
| Production reports | Diamondback E&P LLCthrough Apr 2026 |
| Latest permit | Opal Resources Operating Co.,llcOct 28, 2010 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,550
- total depth, ft
- 2
- permits on file
- Oct 28, 2010
- last permit issued
- May 4, 2012
- completed
- 83.9K
- cumulative oil, bbl
- 123K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2010 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 4, 2012
- Shut in
- Apr 1, 2017
- 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 lease this well is completed on; they carry 7 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| University 6-23 O-10-40255 | Spraberry (Trend Area) | Diamondback E&P LLC | 7 | 83.9K | 123K | Jun 2010 – Apr 2026 |
Oil, barrels lease total
Last 12 months 1,031 · prior 12 1,151(-10%)
Gas, mcf lease total
Last 12 months 2,350 · prior 12 2,333(+1%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Opal Resources Operating Co.,llcJul 2010 → Apr 2011
- 2W&T Offshore, Inc.May 2011 → Dec 2014
- 3Ajax Resources, LLCJan 2015 → Oct 2018
- 4Diamondback E&P LLCNov 2018 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 704036-99 | Recompletion | Opal Resources Operating Co.,llc | Oct 19, 2010 | Oct 28, 2010 | Apr 3, 2010 | 11,550 |
| 691075-99 | Drill | Opal Resources Operating Co.,llc | Feb 10, 2010 | Feb 17, 2010 | Apr 3, 2010 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| May 4, 2012 | University 6-23 O-10-40255 | Spraberry (Trend Area) | Diamondback E&P LLC | Shut In · shut in Apr 1, 2017 | 11,550 |
| May 4, 2012 | University 6-23 O-10-40255 | Spraberry (Trend Area) | Diamondback E&P LLC | Shut In · shut in Apr 1, 2017 | 11,550 |
Formation tops
As filed on W-2/G-1. Subsea from 3,019 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Clear ForkCLEARFORK | 6,618 | -3,599 |
| Spraberry | 8,564 | -5,545 |
| SpraberrySPRABERRY LOWER | 9,090 | -6,071 |
| Dean | 9,701 | -6,682 |
| WolfcampWOLFCAMP LOWER | 10,725 | -7,706 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,540 | 11,458 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 2,024 | 12.25 | 900 S |
| 5.5 | 11,550 | 7.875 | 2,700 S |
| 5.5 | — | 7.875 | 1,800 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. 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 | Jun 13, 2013 | Jun 28, 2012 | — |
| 00 | Nov 29, 2010 | Aug 24, 2010 | Yes |
| 00 | Oct 20, 2010 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received May 5, 2011. Resistivity. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| RESISTIVITYSpans Clear Fork, Spraberry, Dean, Wolfcamp | TIFF | 5,000 to 11,524 | May 5, 2011run Apr 21, 2010 | 9.03 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-003-41442 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-003-41442 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search 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/00341442, documented in the API reference.