WELL · 42-479-34506 · DISTRICT 4
Armstrong Bros. #1D
Webb County · Vertical
Armstrong Bros. #1D (API 42-479-34506) is a permitted well in Webb County filed by Cox, Martin Regan; no completion report is on file yet.
The RRC has issued 5 drilling permits between 1987 and 2001, permitted to 15,793 ft.
Completion filings report 4 formation tops, including Queen City, Wilcox, 5th Hinnant, 11th Hinnant.
Operator of record
Irving, TX · P-5 Y, filed Jun 4, 2026 · 15 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | none |
| Production reports | Cox, Martin Reganthrough Oct 2002 |
| Latest permit | Cox, Martin ReganMay 16, 2001 |
- 15,793
- total depth, ft
- 5
- permits on file
- May 16, 2001
- last permit issued
- —
- completed
- 0
- cumulative oil, bbl
- 101K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Oct 2022
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 4 leases this well is completed on; they carry 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Armstrong 258 G-4-154413 | Berry R. Cox (Wx. 7TH Hinnant) | Cox, Martin Regan | 1 | 0 | 99.9K | Apr 1995 – Oct 2022 |
| Armstrong "258" G-4-172772 | Berry R. Cox (Wx. 6TH Hinnant) | Cox, Martin Regan | 1 | 0 | 1.1K | Aug 1998 – Oct 2022 |
| Armstrong 258 G-4-135054 | Berry R. Cox (Wx. 14TH Hinnant) | XCL-Texas, Inc. | 1 | 0 | 437 | Jan 1993 – Apr 1995 |
| — G-4-126295 | — | — | 0 | 0 | 0 | — |
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.
- 1XCL-Texas, Inc.Jan 1993 → Apr 1996
- 2Cox, Martin ReganDec 2001 → Oct 2002
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 508989-99 | Recompletion | Cox, Martin Regan | May 14, 2001 | May 16, 2001 | — | 10,500 |
| 472770-99 | Recompletion | XCL-Texas, Inc. | Jan 29, 1998 | Jan 29, 1998 | Dec 27, 1997 | 15,793 |
| 434758-99 | Recompletion | XCL-Texas, Inc. | Apr 11, 1995 | Apr 18, 1995 | Feb 21, 1995 | 14,795 |
| 369609-99 | Recompletion | Cox Oil & Gas, Inc. | Feb 8, 1990 | Feb 12, 1990 | — | 14,795 |
| 328938-99 | Drill | Cox Oil & Gas, Inc. | Apr 13, 1987 | Apr 16, 1987 | — | 15,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-126295 | — | — | — | — |
| — | — G-4-135054 | — | — | — | — |
| — | — G-4-154413 | — | — | — | — |
| — | — G-4-172772 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 851 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen City | 5,190 | -4,339 |
| Wilcox | 9,030 | -8,179 |
| 5TH Hinnant | 11,925 | -11,074 |
| 11TH Hinnant | 13,850 | -12,999 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 13,198 | 13,250 | Perforated |
| 13,852 | 13,894 | Perforated |
| 13,854 | 13,896 | Perforated |
| 14,430 | 14,450 | Perforated |
| 14,644 | 14,672 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 20 | 1,590 | 26 | 2,300 S |
| 13.625 | 8,500 | 17.5 | 2,250 S |
| 7 | 14,793 | 8.5 | 675 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 11, 1999 | — | Yes |
| 00 | Jan 9, 1996 | May 15, 1995 | Yes |
| 00 | Jun 29, 1995 | — | — |
| 00 | Jul 9, 1990 | Feb 14, 1990 | Yes |
| 00 | Jul 6, 1990 | — | — |
| 00 | Apr 10, 1989 | Feb 24, 1989 | Yes |
| 00 | Mar 17, 1988 | Nov 24, 1987 | Yes |
| 00 | Feb 11, 1988 | — | — |
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 42-479-34506 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-479-34506 → 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/47934506, documented in the API reference.