WELL · 42-105-42461 · DISTRICT 7
University 50 CD #631HA
Crockett County · Holt Ranch (Consolidated) field · Producing · Horizontal
University 50 CD #631HA (API 42-105-42461) is a horizontal well in Crockett County operated by Zarvona Energy LLC, completed January 4, 2020 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued July 27, 2018, permitted to 7,800 ft.
It was permitted by Approach Operating LLC and has since transferred to Zarvona Energy LLC on the wellbore schedule.
Completion filings report 8 formation tops, including Queen, San Andres, Leonard, Wolfcamp.
Its lease has reported 122K barrels of oil and 234K mcf of gas since October 2018, last reporting in July 2026.
Operator of record
Permitted by Approach Operating LLC; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Mar 4, 2026 · 98 permits on file · (713) 600-0600
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Zarvona Energy LLC |
| Production reports | Zarvona Energy LLCthrough Mar 2026 |
| Latest permit | Approach Operating LLCSep 30, 2018 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,800
- total depth, ft
- 2
- permits on file
- Sep 30, 2018
- last permit issued
- Jan 4, 2020
- completed
- 122K
- cumulative oil, bbl
- 234K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2018 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 4, 2020
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
31.043247, -101.423788
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Crockett County.
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 50 CD O-9-20110 | Holt Ranch (Consolidated) | Zarvona Energy LLC | 1 | 122K | 234K | Oct 2018 – Jul 2026 |
Oil, barrels lease total
Last 12 months 8,669 · prior 12 10,681(-19%)
Gas, mcf lease total
Last 12 months 20,837 · prior 12 26,811(-22%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Approach Operating LLCJan 2020 → Sep 2020
- 2Zarvona Energy LLCOct 2020 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 842587-98 | Drill | Approach Operating LLC | Nov 12, 2018 | Sep 30, 2018 | Sep 7, 2018 | 7,800 |
| 842587-99 | Drill | Approach Operating LLC | Jul 18, 2018 | Jul 27, 2018 | Sep 7, 2018 | 7,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-20110 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,673 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen | 1,954 | 719 |
| San Andres | 2,585 | 88 |
| Leonard | 5,128 | -2,455 |
| Wolfcamp | 6,522 | -3,849 |
| Canyon | — | — |
| Devonian | — | — |
| Ellenburger | — | — |
| Strawn | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,824 | 13,626 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,243 | 12.25 | 535 S |
| 5.5 | 13,780 | 8.75 | 2,545 S |
| 5.5 | 13,785 | 8.75 | 2,545 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 28, 2020 | Feb 26, 2020 | Yes |
| 00 | Feb 1, 2019 | Jan 23, 2019 | 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 42-105-42461 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-105-42461 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
University 50 CE42-105-42462
0.0 KM · Approach Operating LLC · Section with this well →
| Queen | 1,944 | 729 |
| San Andres | 2,577 | 96 |
| Leonard | 5,120 | -2,447 |
| Wolfcamp | 6,514 | -3,841 |
| Ellenburger | — | |
| Devonian | — | |
| Canyon | — | |
| Strawn | — |
University 50-12 West42-105-42084
2.4 KM · Devon Energy Production Co, L.P. · Section with this well →
| Queen | 1,800 | 822 |
| San Andres | 2,162 | 460 |
| Leonard | 4,000 | -1,378 |
| Canyon | 4,400 | -1,778 |
| Wolfcamp | 6,500 | -3,878 |
| Devonian | — | |
| Strawn | — | |
| Ellenburger | — |
Strauss 142-105-42408
2.7 KM · Atropos Exploration Company · Section with this well →
| Queen | 1,853 | 743 |
| San Andres | 2,127 | 469 |
| Ellenburger | — | |
| Leonard | — | |
| Strawn | — | |
| Wolfcamp | — | |
| Canyon | — | |
| Devonian | — |
Strauss Ranch 142-105-42451
3.2 KM · Atropos Exploration Company · Section with this well →
| Queen | 1,846 | 736 |
| San Andres | 2,122 | 460 |
| Canyon | — | |
| Devonian | — | |
| Ellenburger | — | |
| Leonard | — | |
| Strawn | — | |
| Wolfcamp | — |
Strauss-Pfluger 142-105-42452
3.4 KM · Atropos Exploration Company · Section with this well →
| Queen | 1,918 | 742 |
| San Andres | 2,192 | 468 |
| Ellenburger | — | |
| Leonard | — | |
| Strawn | — | |
| Wolfcamp | — | |
| Canyon | — | |
| Devonian | — |
Aec University42-105-42463
3.5 KM · Atropos Exploration Company · Section with this well →
| Queen | 1,937 | 733 |
| San Andres | 2,205 | 465 |
| Canyon | — | |
| Devonian | — | |
| Ellenburger | — | |
| Leonard | — | |
| Strawn | — | |
| Wolfcamp | — |
Strauss-Pfluger 142-105-42406
3.9 KM · Atropos Exploration Company · Section with this well →
| Queen | 1,860 | 710 |
| San Andres | 2,141 | 429 |
| Canyon | — | |
| Strawn | — | |
| Wolfcamp | — | |
| Leonard | — | |
| Ellenburger | — | |
| Devonian | — |
Pangea West42-105-42475
4.5 KM · Approach Operating LLC · Section with this well →
| Queen | 1,864 | 734 |
| Grayburg | 2,135 | 463 |
| San Andres | 2,559 | 39 |
| Leonard | — | |
| Strawn | — | |
| Canyon | — | |
| Wolfcamp | — | |
| Devonian | — |
9 TOPS · FIRST 8
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/10542461, documented in the API reference.