WELL · 42-131-38165 · DISTRICT 4
Duval County Ranch Co. "T" #21
Duval County · Vertical
Duval County Ranch CO. "T" #21 (API 42-131-38165) is a plugged well in Duval County, plugged January 14, 1997, last operated by Gulftex Energy, LLC.
The RRC has issued 3 drilling permits between 1997 and 2009, permitted to 2,300 ft.
Completion filings report 3 formation tops, including Petrox Frio, Frio, Cole Sands.
Its 2 leases have reported 33K barrels of oil and 42 mcf of gas since January 1993, last reporting in July 2026. The leases carry 11 wells, so these are lease totals, not this well alone.
Operator of record
San Antonio, TX · P-5 Y, filed May 4, 2026 · 181 permits on file · (866) 456-3861
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | none |
| Production reports | Gulftex Energy III, LPthrough Jun 2014 |
| Latest permit | Gulftex Energy, LLCApr 23, 2009 |
- 2,300
- total depth, ft
- 3
- permits on file
- Apr 23, 2009
- last permit issued
- —
- completed
- 33K
- cumulative oil, bbl
- 42
- 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
- Jan 14, 1997
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 11 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Duval County Ranch Co. -T- O-4-5472 | Petrox (Frio 1200 -B-) | Production Resources, Inc. | 7 | 21.8K | 21 | Jan 1993 – Jul 2026 |
| Duval County Ranch Co. -T- O-4-3599 | Petrox (Government Wells) | Gulftex Energy II, LP | 4 | 11.2K | 21 | Jan 1993 – Aug 2011 |
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.
- 1Holcomb Company, TheJan 1993 → Aug 1996
- 2Dewbre Petroleum CorporationSep 1996 → Jan 2008
- 3Gulftex Energy, LLCFeb 2008 → Jul 2011
- 4Gulftex Energy II, LPAug 2011 → Jan 2013
- 5Gulftex Energy III, LPFeb 2013 → Jun 2014
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 680032-99 | Recompletion | Gulftex Energy, LLC | Apr 1, 2009 | Apr 23, 2009 | Oct 1, 2004 | 2,300 |
| 461548-99 | Reenter | Dewbre Petroleum Corporation | Apr 24, 1997 | Apr 28, 1997 | Dec 16, 1997 | 2,300 |
| 456946-99 | Drill | Tana Oil and Gas Corporation | Jan 3, 1997 | Jan 3, 1997 | — | 2,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-4-3599 | — | — | — | — |
| — | — O-4-5472 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Download CSV →
| Formation | MD ft |
|---|---|
| Petrox Frio | 1,000 |
| FrioFRIO B | 1,200 |
| Cole Sands | 1,600 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 988 | 998 | Perforated |
| 1,771 | 1,784 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 591 | 12.25 | 220 S |
| 4.5 | 1,884 | 7.875 | 310 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 8, 2010 | Nov 12, 2004 | — |
| 00 | Jan 20, 2010 | — | — |
| 00 | Sep 13, 1999 | Jan 9, 1998 | — |
| 00 | Aug 25, 1999 | — | — |
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 42-131-38165 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-131-38165 → 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
- 1.27M
- bbl, all reported
- Oct 2010
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000087072 | H-1 Injection | Plugged Nov 3, 2010 | 1,500 | 450 | 988–1,002 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 0 · prior 12 78,006(-100%)
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/13138165, documented in the API reference.