WELL · 42-003-34568 · DISTRICT 8
Armstrong, Elizabeth #21
Andrews County · Vertical
Armstrong, Elizabeth #21 (API 42-003-34568) is a permitted well in Andrews County filed by Mobil Producing TX. & N.M. Inc.; no completion report is on file yet.
The RRC has issued 3 drilling permits between 1984 and 1989, permitted to 9,501 ft.
Completion filings report 8 formation tops, including Rustler, Yates, Grayburg, San Andres.
Its 4 leases have reported 9.61M barrels of oil and 9.05M mcf of gas since January 1993, last reporting in July 2026. The leases carry 129 wells, so these are lease totals, not this well alone.
Operator of record
Mobil Producing TX. & N.M. Inc.
- Based in
- Spring, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jun 4, 2025
- Permits on file
- 6,763
- Phone
- (346) 474-9142
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | none |
| Production reports | Hilcorp Energy Companythrough Apr 2026 |
| Latest permit | Mobil Producing TX. & N.M. Inc.Jun 22, 1989 |
- 9,501
- total depth, ft
- 3
- permits on file
- Jun 22, 1989
- last permit issued
- —
- completed
- 9.61M
- cumulative oil, bbl
- 9.05M
- 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 4 leases this well is completed on; they carry 129 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Andrews Unit O-10-34968 | Andrews (Wolfcamp-Penn.) | Hilcorp Energy Company | 97 | 9.38M | 8.35M | Jul 1996 – Jul 2026 |
| Armstrong, Elizabeth a/C 3 O-10-34674 | Andrews (Wolfcamp-Penn.) | Coda Energy, Inc. | 14 | 37.5K | 124K | Oct 1995 – Oct 1996 |
| Armstrong, Elizabeth O-10-269 | Andrews (Wolfcamp) | Coda Energy, Inc. | 13 | 174K | 554K | Jan 1993 – Dec 1995 |
| Armstrong, Elizabeth a/C 3 O-10-12571 | Andrews (Pennsylvanian) | Coda Energy, Inc. | 5 | 17.9K | 22.9K | Jan 1993 – Dec 1995 |
Oil, barrels lease total
Last 12 months 206,605 · prior 12 185,593(+11%)
Gas, mcf lease total
Last 12 months 175,944 · prior 12 151,290(+16%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Coda Energy, Inc.Jan 1993 → Aug 1998
- 2Belco Energy Corp.Sep 1998 → Feb 2002
- 3Westport Oil and Gas Company, LPMar 2002 → Feb 2006
- 4Kerr-McGee Oil & Gas Onshore LPMar 2006 → May 2007
- 5Apache CorporationJun 2007 → Nov 2024
- 6Hilcorp Energy CompanyDec 2024 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 360612-99 | Recompletion | Mobil Producing TX. & N.M. Inc. | Jun 20, 1989 | Jun 22, 1989 | — | 9,501 |
| 286812-99 | Recompletion | Mobil Producing TX. & N.M. Inc. | Oct 9, 1985 | Oct 8, 1985 | — | 9,500 |
| 256195-99 | Drill | Mobil Producing TX. & N.M. Inc. | Oct 22, 1984 | Oct 31, 1984 | Nov 23, 1984 | 9,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-269 | — | — | — | — |
| — | — O-10-12571 | — | — | — | — |
| — | — O-10-34674 | — | — | — | — |
| — | — O-10-34968 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,193 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rustler | 1,896 | 1,297 |
| Yates | 2,990 | 203 |
| Grayburg | 4,331 | -1,138 |
| San Andres | 4,527 | -1,334 |
| GlorietaGLORIETTA | 5,969 | -2,776 |
| Dean | 8,362 | -5,169 |
| Wolfcamp | 8,578 | -5,385 |
| Pennsylvanian | 9,004 | -5,811 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,588 | 8,947 | Perforated |
| 9,004 | 9,345 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 417 | 17.5 | 400 S |
| 13.375 | 417 | — | — |
| 8.625 | 5,800 | 12.25 | 2,300 S |
| 8.625 | 5,800 | — | — |
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 | Jul 16, 1996 | Sep 27, 1985 | — |
| 00 | Oct 26, 1995 | Sep 27, 1985 | — |
| 00 | Dec 3, 1985 | Nov 18, 1985 | Yes |
| 00 | Nov 23, 1985 | — | — |
| 00 | Oct 10, 1985 | Sep 27, 1985 | — |
| 00 | Oct 8, 1985 | — | — |
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 42-003-34568 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-003-34568 → 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.
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/00334568, documented in the API reference.