WELL · 42-163-33021 · DISTRICT 1
Panther Hollow #2H
Frio County · Pearsall (Austin Chalk) field · Horizontal
Panther Hollow #2H (API 42-163-33021) is a plugged horizontal well in Frio County, plugged March 22, 1995, last operated by Oryx Energy Company.
The RRC has issued 2 drilling permits between 1991 and 2009, permitted to 11,200 ft.
It was permitted by U.S. Enercorp, Ltd. and has since transferred to Oryx Energy Company on the wellbore schedule.
Completion filings report 5 formation tops, including Midway, San Miguel, Anacacho, Austin Chalk.
Its 3 leases have reported 1M barrels of oil and 1.75M mcf of gas since January 1993, last reporting in July 2026. The leases carry 49 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by U.S. Enercorp, Ltd.; the EWA schedule now lists a different operator.
Dallas, TX · P-5 Y, filed Feb 5, 1999 · 1,627 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Oryx Energy Company |
| Production reports | Mueller Exploration, Inc.through Mar 2023 |
| Latest permit | U.S. Enercorp, Ltd.Dec 22, 2009 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,200
- total depth, ft
- 2
- permits on file
- Dec 22, 2009
- last permit issued
- Apr 15, 1991
- completed
- 1M
- cumulative oil, bbl
- 1.75M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 15, 1991
- Shut in
- —
- Plugged
- Mar 22, 1995
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 3 leases this well is completed on; they carry 49 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Rally Petroleum O-1-15167 | Pearsall (Austin Chalk) | Mueller Exploration, Inc. | 4 | 375K | 899K | Oct 2009 – Jul 2026 |
| Green Spring O-1-21804 | Pearsall (Austin Chalk) | Silver Anchor Resources LLC | 1 | 0 | 0 | Apr 2025 – Jul 2026 |
| Panther Hollow O-1-4948 | Pearsall (Austin Chalk) | Oryx Energy Company | 44 | 628K | 856K | Jan 1993 – Jun 1997 |
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.
- 1Oryx Energy CompanyJan 1993 → Nov 1996
- 2U.S. Enercorp, Ltd.Oct 2009 → Mar 2016
- 3Mueller Exploration, Inc.Apr 2016 → Mar 2023
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 688687-99 | Reenter | U.S. Enercorp, Ltd. | Dec 15, 2009 | Dec 22, 2009 | Jan 8, 2010 | 6,839 |
| 385377-99 | Drill | Oryx Energy Company | Mar 7, 1991 | Mar 7, 1991 | Mar 21, 1991 | 11,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-4948 | — | — | — | — |
| — | — O-1-15167 | — | — | — | — |
| — | — O-1-21804 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 593 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Midway | 3,222 | -2,629 |
| San Miguel | 5,272 | -4,679 |
| Anacacho | 6,070 | -5,477 |
| Austin ChalkTOP OF AUSTIN CHALK | 6,310 | -5,717 |
| Austin Chalk | 6,333 | -5,740 |
| Lower Chalk | 6,530 | -5,937 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,420 | 10,803 | Perforated |
| 6,629 | 11,150 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 965 | 17.5 | 675 S |
| 9.625 | 6,420 | 12.25 | 1,415 S |
| 7 | 6,629 | 8.5 | 165 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 | Sep 30, 2025 | Feb 24, 2010 | Yes |
| 00 | Aug 19, 2010 | Feb 24, 2010 | Yes |
| 00 | Aug 10, 2010 | — | — |
| 00 | Jul 31, 1991 | May 6, 1991 | Yes |
| 00 | Jul 26, 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 42-163-33021 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-163-33021 → 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/16333021, documented in the API reference.