WELL · 42-173-33108 · DISTRICT 8
Hilger-Kolb Unit #3
Glasscock County · Cobra (Wolfcamp) field · Vertical
Hilger-Kolb Unit #3 (API 42-173-33108) is a plugged well in Glasscock County, plugged October 9, 2017, last operated by Cobra Oil & Gas Corporation.
The RRC has issued one drilling permit, issued April 8, 2003, permitted to 8,000 ft.
Completion filings report one formation top, including Wolfcamp.
Its lease has reported 5.67M barrels of oil and 4.79M mcf of gas since December 1995, last reporting in May 2018. The lease carries 4 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 CorporationApr 8, 2003 |
- 8,000
- total depth, ft
- 1
- permits on file
- Apr 8, 2003
- last permit issued
- May 10, 2003
- completed
- 5.67M
- cumulative oil, bbl
- 4.79M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 1995 THROUGH May 2018
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 10, 2003
- Shut in
- —
- Plugged
- Oct 9, 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; they carry 4 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 |
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 |
|---|---|---|---|---|---|---|
| 529522-99 | Drill | Cobra Oil & Gas Corporation | Mar 13, 2003 | Apr 8, 2003 | Apr 14, 2003 | 8,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-34785 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,558 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Wolfcamp | 7,562 | -5,004 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,750 | 7,772 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 12.75 | 375 | 17.5 | 405 S |
| 8.625 | 3,396 | 11 | 1,100 S |
| 5.5 | 7,930 | 7.875 | 295 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 11, 2003 | May 23, 2003 | Yes |
| 00 | Jun 5, 2003 | — | — |
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 42-173-33108 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-173-33108 → 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/17333108, documented in the API reference.