WELL · 42-493-32385 · DISTRICT 1
Hierholzer A #1
Wilson County · Marcelina Creek (Buda) field · Vertical
Hierholzer A #1 (API 42-493-32385) is a plugged well in Wilson County, plugged July 23, 2004, last operated by First Rock Inc..
The RRC has issued one drilling permit, issued August 6, 1993, permitted to 6,500 ft.
It was permitted by Stoneburner Exploration, Inc. and has since transferred to First Rock Inc. on the wellbore schedule.
Completion filings report 6 formation tops, including Carrizo, Midway, Anacacho, Austin Chalk.
Its lease has reported 4.06K barrels of oil and 476 mcf of gas since November 1993, last reporting in September 2004.
Operator of record
Permitted by Stoneburner Exploration, Inc.; 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 | Xeric Oil & Gas Corporationthrough Nov 1999 |
| Latest permit | Stoneburner Exploration, Inc.Aug 6, 1993 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,500
- total depth, ft
- 1
- permits on file
- Aug 6, 1993
- last permit issued
- Oct 20, 1993
- completed
- 4.06K
- cumulative oil, bbl
- 476
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 1993 THROUGH Sep 2004
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 20, 1993
- Shut in
- —
- Plugged
- Jul 23, 2004
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Hierholzer'a' O-1-13813 | Marcelina Creek (Buda) | First Rock, Inc. | 1 | 4.06K | 476 | Nov 1993 – Sep 2004 |
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.
- 1Stoneburner Exploration, Inc.Nov 1993 → Nov 1996
- 2Xeric Oil & Gas CorporationDec 1996 → Nov 1999
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 414537-99 | Drill | Stoneburner Exploration, Inc. | Aug 3, 1993 | Aug 6, 1993 | Aug 21, 1993 | 6,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-13813 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 476 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Carrizo | 1,235 | -759 |
| Midway | 3,726 | -3,250 |
| Anacacho | 5,834 | -5,358 |
| Austin ChalkAUSTIN | 5,978 | -5,502 |
| Reef | 6,103 | -5,627 |
| Buda | 6,314 | -5,838 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,314 | 6,332 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 670 | 12.25 | 225 S |
| 5.5 | 6,342 | 7.875 | 625 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 27, 1994 | Dec 14, 1993 | Yes |
| 00 | Dec 22, 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 42-493-32385 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-493-32385 → 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/49332385, documented in the API reference.