WELL · 42-049-34263 · DISTRICT 7
Armstrong L. P. #4
Brown County · Cassell (Fry) field · Producing · Vertical
Armstrong L. P. #4 (API 42-049-34263) is a well in Brown County operated by Cpmak Investments Inc., completed March 1, 1985 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued February 19, 1985, permitted to 2,000 ft.
It was permitted by T. & M. Drilling & Operations and has since transferred to Cpmak Investments Inc. on the wellbore schedule.
Completion filings report 2 formation tops, including Cross Cut, Fry.
Its lease has reported 6.4K barrels of oil and 5 mcf of gas since January 1993, last reporting in July 2026. The lease carries 8 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by T. & M. Drilling & Operations; the EWA schedule now lists a different operator.
Cross Plains, TX · P-5 Y, filed Jul 4, 2026 · 4 permits on file · (325) 513-1760
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Cpmak Investments Inc. |
| Production reports | Cpmak Investments, Inc.through Apr 2026 |
| Latest permit | T. & M. Drilling & OperationsFeb 19, 1985 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 2,000
- total depth, ft
- 1
- permits on file
- Feb 19, 1985
- last permit issued
- Mar 1, 1985
- completed
- 6.4K
- cumulative oil, bbl
- 5
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 1, 1985
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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 lease this well is completed on; they carry 8 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Armstrong, L. P. O-8-19506 | Cassell (Fry) | Cpmak Investments, Inc. | 8 | 6.4K | 5 | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 14 · prior 12 14(+0%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Spartan Oil CorporationJan 1993 → Aug 1995
- 2Klingberg, RogerSep 1995 → Mar 2010
- 3KLH Oil & Gas, Inc.May 2010 → Mar 2017
- 4Cpmak Investments, Inc.Apr 2017 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 267135-99 | Drill | T. & M. Drilling & Operations | Apr 17, 1985 | Feb 19, 1985 | — | 2,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-8-19506 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 1,546 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Cross Cut | 1,292 | 254 |
| Fry | 1,600 | -54 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 1,298 | 1,313 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 4.5 | 1,455 | 6.75 | 290 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 27, 2001 | Oct 22, 2001 | — |
| 00 | May 8, 1991 | Mar 20, 1991 | — |
| 00 | Apr 29, 1985 | Apr 8, 1985 | — |
| 00 | Apr 25, 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 42-049-34263 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-049-34263 → 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
- 128K
- bbl, all reported
- Mar 2002
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000071083 | H-1 Injection | Canceled Jul 23, 2002 | 275 | 600 | 1,298–1,313 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 0 · prior 12 8,400(-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/04934263, documented in the API reference.