TEXAS · WELLS · CROCKETT COUNTY · UNIVERSITY 8-56 LEASE · API 42-105-31671 · DISTRICT 6E
University 8-56 #4
Crockett County · Ozona NE. (Canyon 7520) field · Vertical
University 8-56 #4 (API 42-105-31671) is a plugged well in Crockett County, plugged September 22, 2026, last operated by Zarvona Energy LLC.
The RRC has issued one drilling permit, issued September 22, 1977, permitted to 8,500 ft.
It was permitted by Thompson, J. Cleo and has since transferred to Zarvona Energy LLC on the wellbore schedule.
Operator of record
Permitted by Thompson, J. Cleo; 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 Dec 2025 |
| Latest permit | Thompson, J. CleoSep 22, 1977 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,500
- total depth, ft
- 1
- permits on file
- Sep 22, 1977
- last permit issued
- Feb 17, 1978
- completed
- 0
- cumulative oil, bbl
- 115K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 17, 1978
- Shut in
- —
- Plugged
- Sep 22, 2026
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| University 8-56 G-9-75587 | University 56 | Zarvona Energy LLC | 1 | 0 | 115K | Jan 1993 – Jul 2026 |
Gas, mcf lease total
Last 12 months 3,046 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Thompson, J. CleoJan 1993 → Jun 2008
- 2Approach Operating LLCJul 2008 → Sep 2020
- 3Zarvona Energy LLCOct 2020 → Dec 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 8175-99 | Drill | Thompson, J. Cleo | Sep 22, 1977 | Sep 22, 1977 | — | 8,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 17, 1978 | University 8-56 G-9-75587 | Ozona NE. (Canyon 7520) | Zarvona Energy LLC | Plugged | — |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,422 | 12.25 | 800 S |
| 4.5 | 8,171 | 7.875 | 525 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 | Jan 12, 1984 | Mar 17, 1978 | — |
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 42-105-31671 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-105-31671 → 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/10531671, documented in the API reference.