WELL · 42-237-38423 · DISTRICT 9
Carpenter-Martin #1
Jack County · Lost Valley (Caddo) field · Horizontal
Carpenter-Martin #1 (API 42-237-38423) is a horizontal well in Jack County operated by International Western Oil Corp, completed February 2, 1999.
The RRC has issued one drilling permit, issued September 8, 1998, permitted to 4,900 ft.
It was permitted by Mitchell Energy Corporation and has since transferred to International Western Oil Corp on the wellbore schedule.
Completion filings report 3 formation tops, including Caddo, Barnett, Marble Falls.
Its 3 leases have reported 32.3K barrels of oil and 117K mcf of gas since February 1999, last reporting in July 2026. The leases carry 3 wells, so these are lease totals, not this well alone.
Operator of record
International Western Oil Corp
Permitted by Mitchell Energy Corporation; the EWA schedule now lists a different operator.
Weatherford, TX · P-5 Y, filed Jul 4, 2026 · 11 permits on file · (817) 808-8986
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | International Western Oil Corp |
| Production reports | International Western Oil Corpthrough Oct 2025 |
| Latest permit | Mitchell Energy CorporationSep 8, 1998 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,900
- total depth, ft
- 1
- permits on file
- Sep 8, 1998
- last permit issued
- Feb 2, 1999
- completed
- 32.3K
- cumulative oil, bbl
- 117K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 1999 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 2, 1999
- 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 3 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 |
|---|---|---|---|---|---|---|
| Carpenter-Martin O-13-33667 | Lost Valley (Caddo) | International Western Oil Corp | 1 | 819 | 0 | Dec 2016 – Jul 2026 |
| Carpenter-Martin G-13-256193 | Lost Valley (Caddo) | International Western Oil Corp | 1 | 0 | 9.69K | Apr 2010 – Jun 2018 |
| Carpenter-Martin O-13-29617 | Lost Valley (Caddo) | Aspen Operating Company, L.L.C. | 1 | 31.5K | 107K | Feb 1999 – Apr 2018 |
Oil, barrels lease total
Last 12 months 25 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Mitchell Energy CorporationFeb 1999 → Dec 2000
- 2Mitchell Energy Company L.P.Jan 2001 → Mar 2002
- 3Devon Energy Operating Co., L.P.Apr 2002 → Oct 2002
- 4Moriah Resources, Inc.Nov 2002 → Apr 2004
- 5Aspen Operating Company, L.L.C.May 2004 → Jan 2014
- 6Amen Oil LLCDec 2016 → Nov 2017
- 7International Western Oil CorpDec 2017 → Oct 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 479299-99 | Drill | Mitchell Energy Corporation | Sep 8, 1998 | Sep 8, 1998 | Sep 13, 1998 | 4,900 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-13-256193 | — | — | — | — |
| — | — O-13-29617 | — | — | — | — |
| — | — O-13-33667 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 1,119 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Caddo | 4,617 | -3,498 |
| BarnettBARNETT SHALE | — | — |
| Caddo | — | — |
| Marble Falls | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,895 | 6,151 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 453 | 14.75 | 425 S |
| 7 | 4,895 | 8.75 | 215 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 | Jan 10, 2018 | Jul 7, 2017 | — |
| 00 | Jul 26, 2010 | Jun 9, 2010 | — |
| 00 | Jun 14, 2010 | — | — |
| 00 | Mar 4, 1999 | Feb 10, 1999 | Yes |
| 00 | Feb 26, 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 42-237-38423 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-237-38423 → 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/23738423, documented in the API reference.