WELL · 42-173-35371 · DISTRICT 8
Bearkat 21 #4
Glasscock County · Clyde-Reynolds (Wolfcamp Cons.) field · Producing · Vertical
Bearkat 21 #4 (API 42-173-35371) is a well in Glasscock County operated by Black River Operating LLC, completed November 24, 2012 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued October 12, 2012, permitted to 10,500 ft.
It was permitted by Nadel And Gussman Permian,L.L.C. and has since transferred to Black River Operating LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Clear Fork, Wolfcamp, Cisco, Cline.
Its lease has reported 88.9K barrels of oil and 643K mcf of gas since September 2011, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Nadel and Gussman Permian,l.l.c.; the EWA schedule now lists a different operator.
Keller, TX · P-5 Y, filed Sep 4, 2025 · 1 permits on file · (432) 638-0388
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Black River Operating LLC |
| Production reports | Black River Operating LLCthrough Mar 2026 |
| Latest permit | Nadel and Gussman Permian,l.l.c.Oct 12, 2012 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,500
- total depth, ft
- 1
- permits on file
- Oct 12, 2012
- last permit issued
- Nov 24, 2012
- completed
- 88.9K
- cumulative oil, bbl
- 643K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2011 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 24, 2012
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Bearkat 21 O-10-44665 | Clyde-Reynolds (Wolfcamp Cons.) | Black River Operating LLC | 2 | 88.9K | 643K | Sep 2011 – Jul 2026 |
Oil, barrels lease total
Last 12 months 1,919 · prior 12 1,675(+15%)
Gas, mcf lease total
Last 12 months 9,596 · prior 12 2,773(+246%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Nadel and Gussman Permian,l.l.c.Dec 2011 → Dec 2015
- 2BC Operating, Inc.Jan 2016 → May 2017
- 3Mineral Technologies, Inc.Jun 2017 → Jan 2024
- 4Black River Operating LLCFeb 2024 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 749488-99 | Drill | Nadel and Gussman Permian,l.l.c. | Oct 5, 2012 | Oct 12, 2012 | Nov 12, 2012 | 10,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-44665 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,631 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,903 | 7,918 | Perforated |
| 8,020 | 8,380 | Perforated |
| 8,637 | 9,008 | Perforated |
| 9,255 | 9,460 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,535 | 12.25 | 900 S |
| 5.5 | 9,673 | 7.875 | 1,450 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 | Jul 16, 2014 | Nov 8, 2013 | 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 42-173-35371 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-173-35371 → 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/17335371, documented in the API reference.