WELL · 42-105-35940 · DISTRICT 7
University Lands 51/52 #52R
Crockett County · Weger SW. (Grayburg-San Andres) field · Producing · Vertical
University Lands 51/52 #52R (API 42-105-35940) is a well in Crockett County operated by Speartip Energy LLC, completed April 22, 1991 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued March 5, 1991, permitted to 2,800 ft.
It was permitted by Rincon Oil Corporation and has since transferred to Speartip Energy LLC on the wellbore schedule.
Completion filings report 2 formation tops, including Grayburg, San Andres.
Its lease has reported 44.8K barrels of oil and 47.1K mcf of gas since January 1993, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Rincon Oil Corporation; the EWA schedule now lists a different operator.
Katy, TX · P-5 Y, filed Aug 4, 2025 · (432) 528-6867
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Speartip Energy LLC |
| Production reports | Speartip Energy, LLCthrough Apr 2026 |
| Latest permit | Rincon Oil CorporationMar 5, 1991 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 2,800
- total depth, ft
- 2
- permits on file
- Mar 5, 1991
- last permit issued
- Apr 22, 1991
- completed
- 44.8K
- cumulative oil, bbl
- 47.1K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 22, 1991
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| University Lands 51/52 O-9-13008 | Weger, SW. (Grayburg-San Andres) | Speartip Energy, LLC | 2 | 44.8K | 47.1K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 670 · prior 12 962(-30%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Rincon Oil CorporationJan 1993 → Jul 1993
- 2Rin-Tex Oil Co.Aug 1993 → Mar 1995
- 3Rocanville CorporationApr 1995 → Jan 2013
- 4Four Starr Production, LLCFeb 2013 → Dec 2024
- 5Speartip Energy, LLCJan 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 385228-98 | Drill | Rincon Oil Corporation | May 7, 1991 | Mar 5, 1991 | — | 2,800 |
| 385228-99 | Drill | Rincon Oil Corporation | Mar 1, 1991 | Mar 5, 1991 | Mar 8, 1991 | 2,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-13008 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,608 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Grayburg | 2,100 | 508 |
| San Andres | 2,482 | 126 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,168 | 2,191 | Perforated |
| 2,213 | 2,289 | Perforated |
| 2,334 | 2,383 | Perforated |
| 2,404 | 2,408 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 785 | 11 | 295 S |
| 4.5 | 2,650 | 7.875 | 500 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 | Jun 3, 1991 | May 3, 1991 | Yes |
| 00 | May 21, 1991 | — | — |
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 42-105-35940 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-105-35940 → 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/10535940, documented in the API reference.