WELL · 42-059-35803 · DISTRICT 7
Isbell #1
Callahan County · Callahan County Regular field · Vertical
Isbell #1 (API 42-059-35803) is a well in Callahan County operated by Kasle Energy Inc., completed December 1, 1994.
The RRC has issued 2 drilling permits between 1987 and 1994, permitted to 3,950 ft.
Completion filings report 5 formation tops, including Lake, Caddo, Lake Sand, Marble Falls.
Its 3 leases have reported 2.07K barrels of oil and 118K mcf of gas since January 1993, last reporting in July 2026. The leases carry 3 wells, so these are lease totals, not this well alone.
Operator of record
Cross Plains, TX · P-5 Y, filed Mar 4, 2017 · 52 permits on file · (972) 686-0574
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Kasle Energy Inc. |
| Production reports | D.J. & T. Energythrough Oct 2020 |
| Latest permit | Kasle Energy Inc.Dec 1, 1994 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 3,950
- total depth, ft
- 2
- permits on file
- Dec 1, 1994
- last permit issued
- Dec 1, 1994
- completed
- 2.07K
- cumulative oil, bbl
- 118K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Dec 1, 1994
- 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 |
|---|---|---|---|---|---|---|
| Isbell G-8-181115 | Callahan County Regular | D.J. & T. Energy | 1 | 0 | 64.1K | Jun 2000 – Jul 2026 |
| Isbell O-8-27380 | Callahan County Regular | Kasle Energy Inc. | 1 | 1.83K | 44.3K | Dec 1994 – Jul 2002 |
| Isbell O-8-24669 | Atwell (Lake Sand) | Kasle Energy Inc. | 1 | 240 | 9.85K | Jan 1993 – Jun 1995 |
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.
- 1Kasle Energy Inc.Jan 1993 → May 2016
- 2D.J. & T. EnergyAug 2016 → Oct 2020
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 430538-99 | Recompletion | Kasle Energy Inc. | Dec 1, 1994 | Dec 1, 1994 | Dec 1, 1994 | 3,950 |
| 336038-99 | Drill | Kasle Energy Inc. | Sep 16, 1987 | Sep 16, 1987 | — | 3,950 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-8-181115 | — | — | — | — |
| — | — O-8-24669 | — | — | — | — |
| — | — O-8-27380 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 1,794 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Lake | 36 | 1,758 |
| Caddo | 3,010 | -1,216 |
| Caddo | 3,226 | -1,432 |
| Lake Sand | 3,512 | -1,718 |
| Lake | 3,515 | -1,721 |
| Marble Falls | 3,686 | -1,892 |
| Duffer | 3,788 | -1,994 |
| Duffer | 3,830 | -2,036 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,519 | 3,524 | Perforated |
| 3,530 | 3,536 | Perforated |
| 3,688 | 3,700 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 202 | 12.25 | 135 S |
| 4.5 | 3,938 | 7.875 | 300 S |
| 4.5 | 3,943 | 7.875 | 300 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 17, 2001 | Jan 22, 2001 | Yes |
| 00 | Mar 9, 2001 | — | — |
| 00 | Mar 10, 1995 | Dec 21, 1994 | Yes |
| 00 | Jan 3, 1995 | Dec 14, 1987 | Yes |
| 00 | Jan 7, 1988 | Dec 14, 1987 | Yes |
| 00 | Dec 22, 1987 | — | — |
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 42-059-35803 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-059-35803 → 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/05935803, documented in the API reference.