TEXAS · WELLS · SCHLEICHER COUNTY · UNIVERSITY 57-4 LEASE · API 42-413-31089 · DISTRICT 6E
University 57-4 #1
Schleicher County · University 101 (Leonard) field · Vertical
University 57-4 #1 (API 42-413-31089) is a plugged well in Schleicher County, plugged August 22, 2008, last operated by Hamman Oil & Refining Company.
The RRC has issued 2 drilling permits between 1981 and 2004, permitted to 8,185 ft.
Completion filings report one formation top, including Leonard.
Its lease has reported 333 barrels of oil since January 2005, with no volume in the three years through April 2026.
Operator of record
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jun 1, 2026
- Permits on file
- 359
- Phone
- (713) 526-7417
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Hamman Oil & Refining Company |
| Production reports | Hamman Oil & Refining Companythrough Jul 2005 |
| Latest permit | Hamman Oil & Refg. Co.Nov 9, 2004 |
- 8,185
- total depth, ft
- 2
- permits on file
- Nov 9, 2004
- last permit issued
- Jan 5, 2005
- completed
- 333
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2005 THROUGH Jul 2005
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jan 5, 2005
- Shut in
- —
- Plugged
- Aug 22, 2008
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 57-4 O-9-15700 | University 101 (Leonard) | Hamman Oil & Refining Company | 1 | 333 | 0 | Jan 2005 – Jul 2005 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Hamman Oil & Refining CompanyFeb 2005 → Jul 2005
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 553502-99 | Reenter | Hamman Oil & Refg. Co. | Nov 10, 2004 | Nov 9, 2004 | — | 5,000 |
| 127514-99 | Drill | Tucker Drilling Company, Inc. | Jul 29, 1981 | Jul 29, 1981 | Aug 14, 1981 | 8,185 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jan 5, 2005 | University 57-4 O-9-15700 | University 101 (Leonard) | Hamman Oil & Refining Company | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,503 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Leonard | 3,447 | -944 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,711 | 3,769 | Perforated |
| 3,841 | 3,888 | Perforated |
| 3,921 | 3,974 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,388 | 11 | 600 S |
| 4.5 | 4,207 | 7.875 | 400 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 29, 2005 | Feb 22, 2005 | — |
| 00 | Apr 26, 2005 | — | — |
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 42-413-31089 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-413-31089 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here 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/41331089, documented in the API reference.