WELL · 42-163-33145 · DISTRICT 1
Shiner Ranch -B- #4
Frio County · Pearsall (Austin Chalk) field · Horizontal
Shiner Ranch -B- #4 (API 42-163-33145) is a plugged horizontal well in Frio County, plugged August 25, 2021, last operated by Blackbrush O & G LLC.
The RRC has issued 2 drilling permits between 1992 and 2006, permitted to 7,700 ft.
It was permitted by Blackbrush O & G, Inc. and has since transferred to Blackbrush O & G LLC on the wellbore schedule.
Its lease has reported 1.1M barrels of oil and 498K mcf of gas since January 1993, last reporting in July 2026. The lease carries 7 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.
San Antonio, TX · P-5 Y, filed Aug 4, 2025 · 339 permits on file · (210) 569-6756
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Blackbrush O & G LLC |
| Production reports | Blackbrush O & G, LLCthrough Apr 2026 |
| Latest permit | Blackbrush O & G, Inc.May 4, 2006 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,700
- total depth, ft
- 2
- permits on file
- May 4, 2006
- last permit issued
- Jul 12, 2006
- completed
- 1.1M
- cumulative oil, bbl
- 498K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 12, 2006
- Shut in
- —
- Plugged
- Aug 25, 2021
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 7 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Shiner Ranch -B- O-1-4721 | Pearsall (Austin Chalk) | Blackbrush O & G, LLC | 7 | 1.1M | 498K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 1,270 · prior 12 1,713(-26%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Hinton Production CompanyJan 1993 → Nov 1994
- 2Arcadia Expl. & Prod. CompanyDec 1994 → Oct 1998
- 3Hallwood Petroleum, Inc.Nov 1998 → Dec 2001
- 4Hec Petroleum, Inc.Jan 2002 → Jul 2002
- 5Triumph Petroleum Company,l.l.c.Aug 2002 → Jan 2005
- 6Blackbrush O & G, Inc.Feb 2005 → Apr 2012
- 7Blackbrush O & G, LLCMay 2012 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 618096-99 | Recompletion | Blackbrush O & G, Inc. | Apr 24, 2006 | May 4, 2006 | Jun 2, 2006 | 7,700 |
| 407805-99 | Drill | Hinton Production Company | Dec 31, 1992 | Dec 31, 1992 | Jan 7, 1993 | 7,300 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-4721 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,680 | 10,294 | Perforated |
| 6,680 | 10,477 | Perforated |
| 6,697 | 10,477 | Perforated |
| 7,040 | 8,170 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,050 | 12.25 | 380 S |
| 7 | 6,680 | 8.75 | 450 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 10, 2008 | Aug 30, 2006 | Yes |
| 00 | May 25, 1993 | Apr 10, 1993 | Yes |
| 00 | May 20, 1993 | — | — |
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 42-163-33145 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-163-33145 → 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/16333145, documented in the API reference.