WELL · 42-371-35021 · DISTRICT 8
Tahoe-University B #5
Pecos County · Leon Valley (Obrien) field · Shut IN · Vertical
Tahoe-University B #5 (API 42-371-35021) is a well in Pecos County operated by Xhorizons Energy LLC, completed July 7, 1984 and listed as shut in on the RRC schedule.
The RRC has issued one drilling permit, issued June 15, 1984, permitted to 3,000 ft.
It was permitted by Tahoe Oil & Cattle CO. and has since transferred to Xhorizons Energy LLC on the wellbore schedule.
Completion filings report 3 formation tops, including T/Rustler Anhy, T/Tansill, T/Yates.
Its lease has reported 47.5K barrels of oil and 37.8K mcf of gas since January 1993, last reporting in July 2026. The lease carries 4 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Tahoe Oil & Cattle Co.; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Nov 4, 2025 · 1 permits on file · (281) 744-3506
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Xhorizons Energy LLC |
| Production reports | Xhorizons Energy LLCthrough Apr 2026 |
| Latest permit | Tahoe Oil & Cattle Co.Jun 15, 1984 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 3,000
- total depth, ft
- 1
- permits on file
- Jun 15, 1984
- last permit issued
- Jul 7, 1984
- completed
- 47.5K
- cumulative oil, bbl
- 37.8K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 7, 1984
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
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 4 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Tahoe-University "B" O-10-28285 | Leon Valley (Obrien) | Xhorizons Energy LLC | 4 | 47.5K | 37.8K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 8 · prior 12 533(-98%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Tahoe Energy, Inc.Jan 1993 → Apr 1996
- 2Primal Energy CorporationMay 1996 → Jun 2012
- 3P.o.&g. Operating, LLCJul 2012 → Nov 2014
- 4Flamingo Operating, LLCDec 2014 → Sep 2019
- 5Wise Oil Group Operating, LLCFeb 2020 → Nov 2021
- 6Xhorizons Energy LLCDec 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 242152-99 | Drill | Tahoe Oil & Cattle Co. | Jun 11, 1984 | Jun 15, 1984 | — | 3,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-28285 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,076 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| T/Rustler Anhy | 1,396 | 1,680 |
| T/Tansill | 2,306 | 770 |
| T/Yates | 2,722 | 354 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,746 | 2,765 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 648 | 11 | 620 sx |
| 4.5 | 2,825 | 7.875 | 650 sx |
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 | Aug 6, 1984 | Jul 13, 1984 | — |
| 00 | Jul 31, 1984 | Jul 13, 1984 | — |
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 42-371-35021 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-371-35021 → 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/37135021, documented in the API reference.