WELL · 42-059-32540 · DISTRICT 7
Isenhower John D. #1
Callahan County · Isenhower (Duffer) field · Vertical
Isenhower John D. #1 (API 42-059-32540) is a well in Callahan County operated by Pendragon Oil CO., completed August 22, 1980.
The RRC has issued 2 drilling permits between 1980 and 1993, permitted to 4,000 ft.
Completion filings report 4 formation tops, including Strawn, Caddo, Marble Falls, Duffer.
No lease production has been reported under this well’s leases.
Operator of record
Fort Worth, TX · P-5 Y, filed Sep 4, 2025 · 107 permits on file · (817) 845-1322
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Pendragon Oil Co. |
| Production reports | Pendragon Oil Co.through Mar 2019 |
| Latest permit | Pendragon Oil Co.Jan 8, 1993 |
- 4,000
- total depth, ft
- 2
- permits on file
- Jan 8, 1993
- last permit issued
- Aug 22, 1980
- completed
- 0
- cumulative oil, bbl
- 299K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Aug 22, 1980
- 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 |
|---|---|---|---|---|---|---|
| Isenhower, John D. G-8-143988 | Dorothy J. (Gray Sand) | Pendragon Oil Co. | 1 | 0 | 299K | Jan 1993 – Jul 2026 |
| Isenhower, John D. G-8-89677 | Isenhower (Duffer) | Pendragon Oil Co. | 1 | 0 | 0 | Jan 1993 – Jul 1993 |
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.
- 1Pendragon Oil Co.Jan 1993 → Mar 2019
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 407927-99 | Recompletion | Pendragon Oil Co. | Jan 7, 1993 | Jan 8, 1993 | Jan 8, 1993 | 3,875 |
| 72075-99 | Drill | Brazos Resources, Inc. | Feb 7, 1980 | Feb 7, 1980 | Jul 21, 1980 | 4,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-8-89677 | — | — | — | — |
| — | — G-8-143988 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 1,674 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Strawn | 2,426 | -752 |
| Caddo | 3,183 | -1,509 |
| Marble Falls | 3,610 | -1,936 |
| Duffer | 3,796 | -2,122 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,883 | 2,893 | Perforated |
| 2,895 | 2,896 | Perforated |
| 2,898 | 2,899 | Perforated |
| 2,902 | 2,908 | Perforated |
| 3,801 | 3,825 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 120 | 11 | 135 S |
| 8.625 | 120 | 11.25 | 135 S |
| 2.375 | 3,726 | — | — |
| 4.5 | 3,829 | 7.875 | 200 S |
| 4.5 | 3,870 | 7.875 | 350 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 | Mar 12, 1993 | Feb 4, 1993 | Yes |
| 00 | Feb 26, 1993 | — | — |
| 00 | Jan 12, 1984 | Sep 8, 1980 | — |
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 42-059-32540 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-059-32540 → 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/05932540, documented in the API reference.