WELL · 42-173-32665 · DISTRICT 8
Kolb 12 #1
Glasscock County · Cobra (Wolfcamp) field · Vertical
Kolb 12 #1 (API 42-173-32665) is a plugged well in Glasscock County, plugged October 5, 2017, last operated by Cobra Oil & Gas Corporation.
The RRC has issued one drilling permit, issued September 18, 1996, permitted to 8,500 ft.
Completion filings report 2 formation tops, including Spraberry, Wolfcamp.
Its 2 leases have reported 6.22M barrels of oil and 5.19M mcf of gas since December 1995, last reporting in May 2018. The leases carry 5 wells, so these are lease totals, not this well alone.
Operator of record
Wichita Falls, TX · P-5 Y, filed Dec 4, 2025 · 778 permits on file · (940) 720-2597
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Cobra Oil & Gas Corporation |
| Production reports | Cobra Oil & Gas Corporationthrough Oct 2017 |
| Latest permit | Cobra Oil & Gas CorporationSep 18, 1996 |
- 8,500
- total depth, ft
- 1
- permits on file
- Sep 18, 1996
- last permit issued
- Nov 8, 1996
- completed
- 6.22M
- cumulative oil, bbl
- 5.19M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 1995 THROUGH May 2018
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Nov 8, 1996
- Shut in
- —
- Plugged
- Oct 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 2 leases this well is completed on; they carry 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Hilger-Kolb Unit O-10-34785 | Cobra (Wolfcamp) | Cobra Oil & Gas Corporation | 4 | 5.67M | 4.79M | Dec 1995 – May 2018 |
| Kolb 12 O-10-35128 | Cobra (Wolfcamp) | Cobra Oil & Gas Corporation | 1 | 546K | 406K | Nov 1996 – Aug 2001 |
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.
- 1Cobra Oil & Gas CorporationDec 1995 → Oct 2017
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 451302-99 | Drill | Cobra Oil & Gas Corporation | Aug 8, 1996 | Sep 18, 1996 | Oct 9, 1996 | 8,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-34785 | — | — | — | — |
| — | — O-10-35128 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,561 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,672 | 7,712 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 12.75 | 365 | 17.5 | 370 S |
| 8.625 | 3,315 | 11 | 1,200 S |
| — | 7,920 | 7.875 | 325 S |
| 5.5 | — | 7.875 | 400 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 | Jun 29, 2001 | Nov 20, 1996 | Yes |
| 00 | Dec 17, 1996 | Nov 20, 1996 | Yes |
| 00 | Dec 11, 1996 | — | — |
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 42-173-32665 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-173-32665 → 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/17332665, documented in the API reference.