WELL · 42-173-37269 · DISTRICT 8
Bigby #4
Glasscock County · Spraberry (Trend Area) field · Vertical
Bigby #4 (API 42-173-37269) is a plugged well in Glasscock County, plugged April 14, 2026, last operated by Pioneer Natural Res. USA Inc..
The RRC has issued one drilling permit, issued October 6, 2015, permitted to 12,000 ft.
It was permitted by JM Cox Resources, L.P. and has since transferred to Pioneer Natural Res. USA Inc. on the wellbore schedule.
Completion filings report 10 formation tops, including Santa Rosa, Yates, Seven Rivers, Queen.
Its lease has reported 72.2K barrels of oil and 159K mcf of gas since January 1993, last reporting in April 2026. The lease carries 3 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by JM Cox Resources, L.P.; the EWA schedule now lists a different operator.
- Based in
- Spring, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jul 8, 2026
- Permits on file
- 15,628
- Phone
- (972) 444-4001
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Pioneer Natural Res. USA Inc. |
| Production reports | Pioneer Natural Res. USA, Inc.through May 2023 |
| Latest permit | JM Cox Resources, L.P.Oct 6, 2015 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,000
- total depth, ft
- 1
- permits on file
- Oct 6, 2015
- last permit issued
- Mar 6, 2016
- completed
- 72.2K
- cumulative oil, bbl
- 159K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 6, 2016
- Shut in
- —
- Plugged
- Apr 14, 2026
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 |
|---|---|---|---|---|---|---|
| Bigby O-10-23290 | Spraberry (Trend Area) | Pioneer Natural Res. USA, Inc. | 3 | 72.2K | 159K | Jan 1993 – Apr 2026 |
Oil, barrels lease total
Last 12 months 0 · prior 12 0
Gas, mcf lease total
Last 12 months 0 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Cox, John L.Jan 1993 → Sep 2003
- 2JM Cox Resources, L.P.Oct 2003 → Jul 2018
- 3DE3 Operating LLCAug 2018 → May 2021
- 4Pioneer Natural Res. USA, Inc.Jun 2021 → May 2023
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 810761-99 | Drill | JM Cox Resources, L.P. | Sep 29, 2015 | Oct 6, 2015 | Nov 22, 2015 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-23290 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,660 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 1,000 | 1,660 |
| Yates | 1,250 | 1,410 |
| Seven Rivers | 1,300 | 1,360 |
| Queen | 1,500 | 1,160 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 1,850 | 810 |
| Glorieta | 2,450 | 210 |
| Grayburg | 2,850 | -190 |
| Clear ForkCLEARFORK | 5,670 | -3,010 |
| Spraberry | 6,790 | -4,130 |
| Wichita-AlbanyWICHITA ALBANY | 7,400 | -4,740 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,365 | 8,500 | Perforated |
| 8,600 | 8,695 | Perforated |
| 8,785 | 8,905 | Perforated |
| 9,100 | 9,120 | Perforated |
| 9,165 | 9,250 | Perforated |
| 9,300 | 9,385 | Perforated |
| 9,450 | 9,555 | Perforated |
| 9,670 | 9,850 | Perforated |
| 9,924 | 10,105 | Perforated |
| 10,224 | 10,377 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 364 | 17.5 | 400 S |
| 9.625 | 5,004 | 12.25 | 1,380 S |
| 5.5 | 10,538 | 7.875 | 1,400 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 | Aug 10, 2018 | Jun 29, 2018 | 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 42-173-37269 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-173-37269 → 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/17337269, documented in the API reference.