WELL · 42-473-31220 · DISTRICT 3
Denver Karber #4M
Waller County · Brookshire field · Directional
Denver Karber #4M (API 42-473-31220) is a plugged well in Waller County, plugged January 21, 2020, last operated by Denver Energy Exploration LLC.
The RRC has issued one drilling permit, issued July 21, 2011, permitted to 5,000 ft.
Completion filings report 3 formation tops, including Miocene (undifferentiated), Frio, Wilcox.
Its lease has reported 14.9K barrels of oil since September 2011, last reporting in July 2026. The lease carries 3 wells, so these are lease totals, not this well alone.
Operator of record
Canyon Lake, TX · P-5 Y, filed Nov 4, 2025 · 13 permits on file · (210) 209-9249
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Denver Energy Exploration LLC |
| Production reports | Denver Energy Exploration,llcthrough Apr 2017 |
| Latest permit | Denver Energy Exploration,llcJul 21, 2011 |
- 5,000
- total depth, ft
- 1
- permits on file
- Jul 21, 2011
- last permit issued
- Jul 30, 2011
- completed
- 14.9K
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2011 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 30, 2011
- Shut in
- —
- Plugged
- Jan 21, 2020
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 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Denver Karber O-3-26185 | Brookshire | Denver Energy Exploration,llc | 3 | 14.9K | 0 | Sep 2011 – Jul 2026 |
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.
- 1Denver Energy Exploration,llcSep 2011 → Apr 2017
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 720313-99 | Drill | Denver Energy Exploration,llc | Jul 14, 2011 | Jul 21, 2011 | Jul 22, 2011 | 5,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-3-26185 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 122 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Miocene (undifferentiated)MIOCENE | 2,430 | -2,308 |
| Frio | 3,820 | -3,698 |
| Wilcox | 4,360 | -4,238 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,360 | 4,680 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 726 | 12.25 | 315 S |
| 5.5 | 4,471 | 7.875 | 510 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 | Jan 22, 2014 | Feb 16, 2012 | Yes |
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 42-473-31220 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-473-31220 → 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/47331220, documented in the API reference.