WELL · 42-493-30527 · DISTRICT 1
Hierholzer, J. C. #2
Wilson County · Vertical
Hierholzer, J. C. #2 (API 42-493-30527) is a former disposal or injection well in Wilson County, last operated by First Rock, Inc.; its UIC permit is no longer active.
The RRC has issued 5 drilling permits between 1979 and 2001, permitted to 6,550 ft.
Its 2 leases have reported 36.6K barrels of oil and 4.54K mcf of gas since January 1993, last reporting in July 2026. The leases carry 4 wells, so these are lease totals, not this well alone.
Operator of record
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 | none |
| Production reports | Pump-N-Production, LLCthrough Apr 2026 |
| Latest permit | First Rock, Inc.Jan 26, 2001 |
- 6,550
- total depth, ft
- 5
- permits on file
- Jan 26, 2001
- last permit issued
- —
- completed
- 36.6K
- cumulative oil, bbl
- 4.54K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- —
- Shut in
- —
- Plugged
- —
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 4 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Heirholzer, J.C. et AL O-1-6269 | Sutil (Reef) | Pump-N-Production, LLC | 3 | 31K | 3.63K | Jan 1993 – Jul 2026 |
| Heirholzer, J.C. O-1-5967 | Sutil (Austin) | Britanco, L.L.C. | 1 | 5.61K | 903 | Jan 1993 – May 2008 |
Oil, barrels lease total
Last 12 months 648 · prior 12 1,258(-48%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Stoneburner Exploration, Inc.Jan 1993 → Nov 1996
- 2Xeric Oil & Gas CorporationDec 1996 → Nov 1999
- 3First Rock, Inc.Dec 1999 → Apr 2008
- 4Britanco, L.L.C.May 2008 → Apr 2010
- 5Marshfield Oil & Gas, LLCMay 2010 → Nov 2016
- 6Pump-N-Production, LLCFeb 2017 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 503167-99 | Recompletion | First Rock, Inc. | Dec 18, 2000 | Jan 26, 2001 | — | 6,430 |
| 181430-99 | Recompletion | Petrolia Drilling Corp. | Dec 28, 1982 | Dec 28, 1982 | — | 6,550 |
| 170124-99 | Recompletion | Petrolia Drilling Corp. | Aug 25, 1982 | Aug 25, 1982 | — | 6,550 |
| 49504-99 | Drill | Petrolia Drilling Corp. | May 2, 1979 | May 2, 1979 | — | 6,550 |
| 45538-99 | Drill | Petrolia Drilling Corp. | Apr 2, 1979 | Apr 2, 1979 | — | 6,550 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-5967 | — | — | — | — |
| — | — O-1-6269 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,062 | 6,235 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 556 | 12.25 | 400 S |
| 2.375 | 6,024 | — | — |
| 4.5 | 6,427 | 7.875 | 465 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 | May 28, 2008 | Feb 9, 2001 | — |
| 00 | Oct 26, 2004 | Sep 7, 2004 | — |
| 00 | Sep 21, 2004 | — | — |
| 00 | Jan 12, 1984 | Aug 30, 1979 | — |
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 42-493-30527 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-493-30527 → 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.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 0
- bbl, last 12 reported months
- 0
- bbl, all reported
- Dec 1994
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000049090 | H-1 Injection | Not activated | 800 | 2,000 | 6,300–6,330 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 0 · prior 12 0
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/49330527, documented in the API reference.