WELL · 42-389-10479 · DISTRICT 8
Armstrong #1
Reeves County · Vertical
Armstrong #1 (API 42-389-10479) is a former disposal or injection well in Reeves County, last operated by Eastland Oil Company, The; its UIC permit is no longer active.
The RRC has issued 2 drilling permits between 1978 and 1982, permitted to 4,473 ft.
Completion filings report 3 formation tops, including Top Salt, Base Salt, Delaware.
Its 2 leases have reported 7.58K barrels of oil and 60.4K mcf of gas since January 1993, last reporting in July 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Midland, TX · P-5 Y, filed Jan 4, 2026 · 47 permits on file · (432) 631-4348
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | none |
| Production reports | Arch Oil & Gas, LLCthrough Jan 2018 |
| Latest permit | Eastland Oil Company, TheFeb 10, 1982 |
- 4,473
- total depth, ft
- 2
- permits on file
- Feb 10, 1982
- last permit issued
- —
- completed
- 7.58K
- cumulative oil, bbl
- 60.4K
- 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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Armstrong G-10-226843 | Ken Regan (Delaware) | Bustamante Resources LLC | 1 | 0 | 14.7K | Feb 2007 – Jul 2026 |
| Armstrong O-10-27254 | Ken Regan (Delaware) | Sledge Bros. Oil Co. | 1 | 7.58K | 45.8K | Jan 1993 – Feb 2010 |
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.
- 1L.B.L. Oil CorporationJan 1993 → Jun 1993
- 2Sledge Bros. Oil Co.Jul 1993 → Mar 2016
- 37S Oil & Gas, LLCApr 2016 → Oct 2017
- 4Arch Oil & Gas, LLCNov 2017 → Jan 2018
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 150519-99 | Other | Eastland Oil Company, The | Feb 10, 1982 | Feb 10, 1982 | — | 4,473 |
| 32747-99 | Other | Texas Pacific Oil Company, Inc. | Sep 15, 1978 | Sep 15, 1978 | — | 4,100 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-10-226843 | — | — | — | — |
| — | — O-10-27254 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,882 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Top Salt | 2,715 | 167 |
| Base Salt | 3,065 | -183 |
| DelawareTOP DELAWARE SAND | 3,308 | -426 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,308 | 3,319 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 605 | 12.25 | 375 S |
| 4.5 | 3,534 | 6.75 | 600 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 31, 2007 | May 18, 2007 | — |
| 00 | May 29, 2007 | — | — |
| 00 | Jan 12, 1984 | Apr 5, 1982 | — |
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 42-389-10479 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-389-10479 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. 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
- —
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000088802 | W-14 Disposal | Canceled Sep 21, 1981 | 1,000 | 750 | 3,910–3,995 |
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/38910479, documented in the API reference.