WELL · 42-211-33568 · DISTRICT 10
Isaacs John C. #1197
Hemphill County · Mendota NW. (Granite Wash) field · Vertical
Isaacs John C. #1197 (API 42-211-33568) is a plugged well in Hemphill County, plugged May 5, 2017, last operated by Unbridled Resources LLC.
The RRC has issued one drilling permit, issued April 10, 2006, permitted to 11,200 ft.
It was permitted by Grayhawk Operating, Inc. and has since transferred to Unbridled Resources LLC on the wellbore schedule.
Completion filings report 6 formation tops, including Dolonmite, Douglas, Tonkawa, Cleveland.
Operator of record
Permitted by Grayhawk Operating, Inc.; the EWA schedule now lists a different operator.
Oklahoma City, OK · P-5 Y, filed Sep 4, 2025 · 6 permits on file · (844) 507-5540
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Unbridled Resources LLC |
| Production reports | 4P Energy Texas, LLCthrough May 2017 |
| Latest permit | Grayhawk Operating, Inc.Apr 10, 2006 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,200
- total depth, ft
- 1
- permits on file
- Apr 10, 2006
- last permit issued
- Jun 25, 2006
- completed
- 0
- cumulative oil, bbl
- 121K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jun 2006 THROUGH May 2021
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jun 25, 2006
- Shut in
- —
- Plugged
- May 5, 2017
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Isaacs, John C. G-14-223455 | Mendota, NW. (Granite Wash) | Unbridled Resources, LLC | 1 | 0 | 121K | Jun 2006 – May 2021 |
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.
- 1Grayhawk Operating, Inc.Jul 2006 → Dec 2006
- 2Chesapeake Operating, Inc.Jan 2007 → Oct 2014
- 3Chesapeake Operating, L.L.C.Nov 2014 → Mar 2015
- 44P Energy Texas, LLCJul 2016 → May 2017
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 617240-99 | Drill | Grayhawk Operating, Inc. | Apr 7, 2006 | Apr 10, 2006 | Apr 29, 2006 | 11,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-14-223455 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,538 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Dolonmite | 3,885 | -1,347 |
| Douglas | 6,834 | -4,296 |
| Tonkawa | 7,599 | -5,061 |
| Cleveland | 8,605 | -6,067 |
| Granite Wash | 9,561 | -7,023 |
| AtokaATOKA LM | 10,838 | -8,300 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,010 | 10,508 | Perforated |
| 10,800 | 10,905 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 16 | 64 | 20 | 130 S |
| 9.625 | 2,700 | 12.25 | 1,315 S |
| 5.5 | 10,800 | 8.75 | 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 | Apr 14, 2007 | Dec 11, 2006 | Yes |
| 00 | Dec 28, 2006 | — | — |
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 42-211-33568 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-211-33568 → 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/21133568, documented in the API reference.