WELL · 42-163-32860 · DISTRICT 1
West Shiner Ranch #2
Frio County · Pearsall (Austin Chalk) field · Horizontal · Sidetrack
West Shiner Ranch #2 (API 42-163-32860) is a plugged horizontal well in Frio County, plugged August 29, 2023, last operated by First Rock Inc..
The RRC has issued 2 drilling permits (amended once) between 1990 and 1991, permitted to 8,700 ft.
It was permitted by Sanchez-O'Brien Oil & Gas Corp. and has since transferred to First Rock Inc. on the wellbore schedule.
Completion filings report 7 formation tops, including Queen City, Carrizo, Wilcox, Olmas.
Its lease has reported 153K barrels of oil and 48.5K 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 Sanchez-O'Brien Oil & Gas Corp.; the EWA schedule now lists a different operator.
Corpus Christ, TX · P-5 Y, filed Feb 4, 2026 · 68 permits on file · (361) 215-5559
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | First Rock Inc. |
| Production reports | First Rock, Inc.through Dec 2020 |
| Latest permit | Sanchez-O'Brien Oil & Gas Corp.May 20, 1991 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,700
- total depth, ft
- 3
- permits on file
- May 20, 1991
- last permit issued
- Jun 20, 1991
- completed
- 153K
- cumulative oil, bbl
- 48.5K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jun 20, 1991
- Shut in
- —
- Plugged
- Aug 29, 2023
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 |
|---|---|---|---|---|---|---|
| West Shiner Ranch O-1-12616 | Pearsall (Austin Chalk) | First Rock, Inc. | 2 | 153K | 48.5K | Jan 1993 – Jul 2026 |
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.
- 1Sanchez-O'Brien Oil & Gas Corp.Jan 1993 → Oct 1994
- 2First Rock, Inc.Nov 1994 → Dec 2020
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 388138-98 | Drill | Sanchez-O'Brien Oil & Gas Corp. | Nov 15, 1991 | May 20, 1991 | — | 8,700 |
| 388138-99 | Drill · sidetrack | Sanchez-O'Brien Oil & Gas Corp. | May 20, 1991 | May 20, 1991 | May 27, 1991 | 8,700 |
| 378332-99 | Drill | Sanchez-O'Brien / Texaco Inc. | Sep 24, 1990 | Sep 24, 1990 | Oct 14, 1990 | 8,700 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-12616 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 485 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen City | 1,180 | -695 |
| Carrizo | 1,905 | -1,420 |
| Wilcox | 2,475 | -1,990 |
| Olmas | 5,594 | -5,109 |
| Olmos | 5,595 | -5,110 |
| Anacacho | 6,925 | -6,440 |
| Austin Chalk | 7,198 | -6,713 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,225 | 8,532 | Perforated |
| 7,225 | 10,987 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 900 | 12.25 | 350 S |
| 7 | 6,858 | 8.75 | 242 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 7, 1991 | Jul 5, 1991 | Yes |
| 00 | May 28, 1991 | Feb 21, 1991 | Yes |
| 00 | May 10, 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 42-163-32860 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-163-32860 → 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/16332860, documented in the API reference.