WELL · 42-441-02100 · DISTRICT 7
Black W. O. #4
Taylor County · Taylor County Regular field · Vertical
Black W. O. #4 (API 42-441-02100) is a plugged well in Taylor County, plugged June 16, 2014, last operated by Quantum Investments.
The RRC has issued one drilling permit, issued November 3, 2004, permitted to 1,861 ft.
It was permitted by Gray Oil & Gas Inc. and has since transferred to Quantum Investments on the wellbore schedule.
Completion filings report 4 formation tops, including Saddle Creek, Flippen Sand, Flippen Lime, Cook Lime.
Its lease has reported 10.9K barrels of oil and 638 mcf of gas since January 1993, last reporting in July 2026. The lease carries 4 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Gray Oil & Gas Inc.; the EWA schedule now lists a different operator.
Lubbock, TX · P-5 Y, filed Jul 4, 2026 · 10 permits on file · (325) 665-7406
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Quantum Investments |
| Production reports | Firerock Companythrough May 2008 |
| Latest permit | Gray Oil & Gas Inc.Nov 3, 2004 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 1,861
- total depth, ft
- 1
- permits on file
- Nov 3, 2004
- last permit issued
- Dec 10, 2004
- completed
- 10.9K
- cumulative oil, bbl
- 638
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Dec 10, 2004
- Shut in
- —
- Plugged
- Jun 16, 2014
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 |
|---|---|---|---|---|---|---|
| Black, W. O. O-8-5232 | Taylor County Regular | Quantum Investments | 4 | 10.9K | 638 | Jan 1993 – 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.
- 1Hovgard & FitzgeraldJan 1993 → Mar 1996
- 2Norman Oil CorporationApr 1996 → Mar 2000
- 3Augusta Oil & GasApr 2000 → Nov 2002
- 4D.J. & T. EnergyJan 2003 → Nov 2003
- 5Gray Oil & Gas Inc.Dec 2003 → Aug 2007
- 6Firerock CompanySep 2007 → May 2008
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 552301-99 | Reenter | Gray Oil & Gas Inc. | Oct 14, 2004 | Nov 3, 2004 | — | 1,861 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-8-5232 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 220 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Saddle CreekSADDLE CREEK LIME | 1,759 | -1,539 |
| Flippen Sand | 1,786 | -1,566 |
| Flippen Lime | 1,822 | -1,602 |
| Cook Lime | 1,846 | -1,626 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 1,788 | 1,793 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 2.375 | 1,794 | — | — |
| 4.5 | 1,861 | 7.875 | — |
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 20, 2005 | Dec 21, 2004 | Yes |
| 00 | Apr 11, 2005 | — | — |
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 42-441-02100 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-441-02100 → 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/44102100, documented in the API reference.