WELL · 42-163-32108 · DISTRICT 1
Arrow-Hildebrand #4 #4
Frio County · Pearsall (Austin Chalk) field · Horizontal · Sidetrack
Arrow-Hildebrand #4 #4 (API 42-163-32108) is a plugged horizontal well in Frio County, plugged October 6, 2020, last operated by Blackbrush O & G LLC.
The RRC has issued 3 drilling permits between 1981 and 1993, permitted to 6,900 ft.
It was permitted by Gemini Exploration Company and has since transferred to Blackbrush O & G LLC on the wellbore schedule.
Completion filings report 6 formation tops, including Escondido, Olmos, San Miguel, Anacacho.
Its 2 leases have reported 89.7K barrels of oil and 734 mcf of gas since January 1993, last reporting in September 2021. The leases carry 8 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Gemini Exploration Company; 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 | Express Oil and Gasthrough Nov 1999 |
| Latest permit | Gemini Exploration CompanyApr 15, 1993 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,900
- total depth, ft
- 3
- permits on file
- Apr 15, 1993
- last permit issued
- May 20, 1993
- completed
- 89.7K
- cumulative oil, bbl
- 734
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Sep 2021
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 20, 1993
- Shut in
- —
- Plugged
- Oct 6, 2020
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 8 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Hildebrand, Ira O-1-7486 | Pearsall (Austin Chalk) | Blackbrush O & G, LLC | 6 | 26.9K | 523 | Jan 1993 – Sep 2021 |
| Arrow-Hildebrand #4 O-1-13724 | Pearsall (Austin Chalk) | Blackbrush O & G, LLC | 2 | 62.8K | 211 | Apr 1993 – Sep 2021 |
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.
- 1Barnes, Larry Petroleum, Inc.Jan 1993 → Dec 1993
- 2Gemini Exploration CompanyMay 1993 → Feb 1994
- 3Express Oil and GasJan 1994 → Nov 1999
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 410751-99 | Recompletion · sidetrack | Gemini Exploration Company | Apr 15, 1993 | Apr 15, 1993 | Apr 14, 1993 | 6,800 |
| 377507-99 | Drill | Barnes, Larry Petroleum, Inc. | Sep 4, 1990 | Sep 4, 1990 | Nov 16, 1990 | 6,900 |
| 145332-99 | Drill | Energy Resources Oil & Gas Corp. | Dec 28, 1981 | Dec 28, 1981 | Oct 31, 1981 | 6,900 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-7486 | — | — | — | — |
| — | — O-1-13724 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 572 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Escondido | 3,846 | -3,274 |
| Olmos | 5,036 | -4,464 |
| San Miguel | 5,502 | -4,930 |
| Anacacho | 6,130 | -5,558 |
| T. Austin Chalk | 6,482 | -5,910 |
| Austin Chalk | 6,485 | -5,913 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,470 | 10,857 | Perforated |
| 6,485 | 6,706 | Perforated |
| 6,485 | 6,970 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 352 | 14.75 | 350 S |
| 7 | 6,484 | 9.875 | 980 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 | Dec 16, 1993 | Sep 23, 1993 | Yes |
| 00 | May 25, 1993 | Dec 27, 1990 | Yes |
| 00 | Jun 3, 1991 | Dec 27, 1990 | Yes |
| 00 | Dec 4, 1985 | Sep 30, 1985 | Yes |
| 00 | Nov 28, 1985 | — | — |
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 42-163-32108 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-163-32108 → 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/16332108, documented in the API reference.