WELL · 42-163-33115 · DISTRICT 1
Shiner Ranch #6
Frio County · Pearsall (Buda Lime) field · Horizontal · Directional
Shiner Ranch #6 (API 42-163-33115) is a plugged horizontal well in Frio County, plugged September 18, 2025, last operated by Blackbrush O & G LLC.
The RRC has issued 2 drilling permits (amended twice) between 1991 and 2005, permitted to 8,200 ft.
It was permitted by Blackbrush O & G, Inc. and has since transferred to Blackbrush O & G LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Wilcox, Olmos, Anacacho, Buda.
Its 2 leases have reported 871K barrels of oil and 479K mcf of gas since January 1993, last reporting in July 2026. The leases carry 9 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Blackbrush O & G, Inc.; the EWA schedule now lists a different operator.
- Based in
- San Antonio, TX
- P-5 status
- Active (A)
- P-5 last filed
- Sep 16, 2025
- Permits on file
- 339
- Phone
- (210) 495-5577
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Blackbrush O & G LLC |
| Production reports | Blackbrush O & G, LLCthrough Jul 2024 |
| Latest permit | Blackbrush O & G, Inc.Dec 29, 2005 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,200
- total depth, ft
- 4
- permits on file
- Dec 29, 2005
- last permit issued
- May 7, 2006
- completed
- 871K
- cumulative oil, bbl
- 479K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 7, 2006
- Shut in
- —
- Plugged
- Sep 18, 2025
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 2 leases this well is completed on; they carry 9 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Shiner Ranch O-1-12693 | Pearsall (Austin Chalk) | Blackbrush O & G, LLC | 8 | 871K | 387K | Jan 1993 – Jul 2026 |
| Shiner Ranch G-1-230632 | Pearsall (Buda Lime) | Blackbrush O & G, LLC | 1 | 0 | 92.2K | May 2006 – Sep 2025 |
Oil, barrels lease total
Last 12 months 0 · prior 12 7(-100%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Gemini Exploration CompanyJan 1993 → Apr 1995
- 2Union Pacific Austin Chalk Co.May 1995 → Dec 1996
- 3Costilla Petroleum CorporationJan 1997 → Jan 1997
- 4Costilla Energy, Inc.Feb 1997 → Mar 1999
- 5Petra Oleum Corp.Apr 1999 → May 2001
- 6Arcadia Expl. & Prod. CompanyJun 2001 → Jul 2001
- 7Triumph Petroleum Company,l.l.c.Aug 2001 → Jan 2005
- 8Blackbrush O & G, Inc.Feb 2005 → Apr 2012
- 9Blackbrush O & G, LLCMay 2012 → Jul 2024
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 611536-98 | Recompletion | Blackbrush O & G, Inc. | Mar 31, 2006 | Dec 29, 2005 | Apr 6, 2006 | 8,200 |
| 611536-99 | Recompletion | Blackbrush O & G, Inc. | Dec 22, 2005 | Dec 29, 2005 | — | 7,700 |
| 393942-98 | Drill | Gemini Exploration Company | Feb 12, 1992 | Nov 13, 1991 | — | 7,600 |
| 393942-99 | Drill | Gemini Exploration Company | Nov 13, 1991 | Nov 13, 1991 | Nov 13, 1991 | 7,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-1-230632 | — | — | — | — |
| — | — O-1-12693 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 497 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,953 | 8,241 | Perforated |
| 7,017 | 10,410 | Perforated |
| 7,234 | 10,994 | Perforated |
| 7,811 | 8,255 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 797 | 12.25 | 320 S |
| 7 | 6,923 | 8.75 | 280 S |
| 4.5 | 7,811 | 6.25 | 85 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 | Nov 20, 2007 | Jun 23, 2006 | Yes |
| 00 | Nov 7, 2007 | — | — |
| 00 | Mar 11, 1992 | Jan 22, 1992 | Yes |
| 00 | Feb 26, 1992 | — | — |
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 42-163-33115 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-163-33115 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). 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/16333115, documented in the API reference.