TEXAS · WELLS · CROCKETT COUNTY · UNIVERSITY 45 LEASE · API 42-105-41283 · DISTRICT 6E
University 45 #1H
Crockett County · Holt Ranch (Consolidated) field · Shut In · Horizontal
University 45 #1H (API 42-105-41283) is a horizontal well in Crockett County operated by Zarvona Energy LLC, completed October 14, 2011 and listed as shut in on the RRC schedule, shut in October 1, 2011.
The RRC has issued one drilling permit, issued May 12, 2011, permitted to 6,489 ft.
It was permitted by Approach Operating LLC and has since transferred to Zarvona Energy LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Clear Fork, Dean, Wolfcamp.
Its lease has reported 6.71M barrels of oil and 79.8M mcf of gas since August 2011, last reporting volume in March 2026. The lease carries 104 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Approach Operating LLC; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jun 2, 2026
- Permits on file
- 98
- Phone
- (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 LLCMay 12, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,489
- total depth, ft
- 1
- permits on file
- May 12, 2011
- last permit issued
- Oct 14, 2011
- completed
- 6.71M
- cumulative oil, bbl
- 79.8M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2011 THROUGH Mar 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 14, 2011
- Shut in
- Oct 1, 2011
- 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 104 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| University 45 O-9-17662 | Holt Ranch (Consolidated) | Zarvona Energy LLC | 104 | 6.71M | 79.8M | Aug 2011 – Mar 2026 |
Gas, mcf lease total
Last 12 months 4,108,339 · prior 12 4,471,477(-8%)
Oil, barrels lease total
Last 12 months 150,864 · prior 12 175,409(-14%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Approach Operating LLCSep 2011 → Sep 2020
- 2Zarvona Energy LLCOct 2020 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 716009-99 | Drill | Approach Operating LLC | May 10, 2011 | May 12, 2011 | May 23, 2011 | 6,700 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 14, 2011 | University 45 O-9-17662 | Holt Ranch (Consolidated) | Zarvona Energy LLC | Shut In · shut in Oct 1, 2011 | 6,489 |
Formation tops
As filed on W-2/G-1. Subsea from 2,676 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Clear ForkCLEARFORK | 4,319 | -1,643 |
| Dean | 5,781 | -3,105 |
| Wolfcamp | 6,021 | -3,345 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 13,545 | 13,745 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 959 | 17.5 | 710 S |
| 9.625 | 4,302 | 12.25 | 760 S |
| 5.5 | 13,884 | 8.75 | 2,240 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 | Dec 11, 2012 | Nov 18, 2011 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Jul 3, 2014. 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, Dean, Wolfcamp | TIFF | 0 to 6,668 | Jul 3, 2014run Jul 21, 2011 | 6.91 |
"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 42-105-41283 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-105-41283 → 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/10541283, documented in the API reference.