WELL · 42-173-38303 · DISTRICT 8
Bigby North a 10-3 #4201H
Glasscock County · Spraberry (Trend Area) field · Shut IN · Horizontal
Bigby North A 10-3 #4201H (API 42-173-38303) is a horizontal well in Glasscock County operated by Pioneer Natural Res. USA Inc., completed September 8, 2020 and listed as shut in on the RRC schedule.
The RRC has issued one drilling permit, issued January 30, 2020, permitted to 9,500 ft.
It was permitted by De3 Operating LLC and has since transferred to Pioneer Natural Res. USA Inc. on the wellbore schedule.
Completion filings report 10 formation tops, including Santa Rosa, Rustler, Yates, Seven Rivers.
Its lease has reported 288K barrels of oil and 3.08M mcf of gas since August 2020, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by DE3 Operating LLC; the EWA schedule now lists a different operator.
Spring, TX · P-5 Y, filed May 4, 2026 · 15,619 permits on file · (972) 598-8150
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 Apr 2026 |
| Latest permit | DE3 Operating LLCJan 30, 2020 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,500
- total depth, ft
- 1
- permits on file
- Jan 30, 2020
- last permit issued
- Sep 8, 2020
- completed
- 288K
- cumulative oil, bbl
- 3.08M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2020 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 8, 2020
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
31.803656, -101.716537
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Glasscock County.
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 |
|---|---|---|---|---|---|---|
| Bigby North a 10-3 O-10-54608 | Spraberry (Trend Area) | Pioneer Natural Res. USA, Inc. | 2 | 288K | 3.08M | Aug 2020 – Jul 2026 |
Gas, mcf lease total
Last 12 months 49,724 · prior 12 487,463(-90%)
Oil, barrels lease total
Last 12 months 3,760 · prior 12 11,153(-66%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1DE3 Operating LLCSep 2020 → May 2021
- 2Pioneer Natural Res. USA, Inc.Jun 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 861400-99 | Drill | DE3 Operating LLC | Jan 28, 2020 | Jan 30, 2020 | Mar 2, 2020 | 9,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-54608 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,624 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa Rosa | 1,000 | 1,624 |
| Rustler | 1,369 | 1,255 |
| Yates | 2,191 | 433 |
| Seven Rivers | 2,430 | 194 |
| Glorieta | 2,450 | 174 |
| Queen | 3,127 | -503 |
| Grayburg | 3,625 | -1,001 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 3,734 | -1,110 |
| Clear ForkCLEARFORK | 5,713 | -3,089 |
| Spraberry | 6,805 | -4,181 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,795 | 16,276 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 421 | 17.5 | 425 S |
| 9.625 | 7,801 | 12.25 | 640 S |
| 5.5 | 16,389 | 8.5 | 2,380 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 | Nov 16, 2020 | Oct 23, 2020 | Yes |
| 00 | Oct 5, 2020 | Sep 8, 2020 | 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 42-173-38303 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-173-38303 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
Bigby North a 10-342-173-38302
0.0 KM · DE3 Operating LLC · Section with this well →
| Santa Rosa | 1,000 | 1,624 |
| Rustler | 1,358 | 1,266 |
| Yates | 2,193 | 431 |
| Seven Rivers | 2,445 | 179 |
| Glorieta | 2,450 | 174 |
| Queen | 3,127 | -503 |
| Grayburg | 3,627 | -1,003 |
| San Andres | 3,740 | -1,116 |
10 TOPS · FIRST 8
Bigby North B 10-342-173-38304
0.0 KM · DE3 Operating LLC · Section with this well →
| Santa Rosa | 1,000 | 1,624 |
| Rustler | 1,349 | 1,275 |
| Yates | 2,191 | 433 |
| Seven Rivers | 2,443 | 181 |
| Glorieta | 2,450 | 174 |
| Queen | 3,125 | -501 |
| Grayburg | 3,625 | -1,001 |
| San Andres | 3,734 | -1,110 |
10 TOPS · FIRST 8
Bigby North C 10-342-173-38305
0.0 KM · DE3 Operating LLC · Section with this well →
| Santa Rosa | 1,000 | 1,624 |
| Rustler | 1,352 | 1,272 |
| Yates | 2,191 | 433 |
| Seven Rivers | 2,447 | 177 |
| Glorieta | 2,450 | 174 |
| Queen | 3,127 | -503 |
| Grayburg | 3,629 | -1,005 |
| San Andres | 3,734 | -1,110 |
10 TOPS · FIRST 8
Bigby North C 10-342-173-38306
0.1 KM · DE3 Operating LLC · Section with this well →
| Santa Rosa | 1,000 | 1,622 |
| Rustler | 1,347 | 1,275 |
| Yates | 2,183 | 439 |
| Seven Rivers | 2,443 | 179 |
| Glorieta | 2,450 | 172 |
| Queen | 3,123 | -501 |
| Grayburg | 3,619 | -997 |
| San Andres | 3,728 | -1,106 |
10 TOPS · FIRST 8
Bigby North D 10-342-173-38307
0.2 KM · DE3 Operating LLC · Section with this well →
| Santa Rosa | 1,000 | 1,622 |
| Rustler | 1,347 | 1,275 |
| Yates | 2,189 | 433 |
| Seven Rivers | 2,437 | 185 |
| Glorieta | 2,450 | 172 |
| Queen | 3,125 | -503 |
| Grayburg | 3,619 | -997 |
| San Andres | 3,728 | -1,106 |
13 TOPS · FIRST 8
Bigby North D 10-342-173-38308
0.2 KM · DE3 Operating LLC · Section with this well →
| Santa Rosa | 1,000 | 1,622 |
| Rustler | 1,347 | 1,275 |
| Yates | 2,186 | 436 |
| Seven Rivers | 2,439 | 183 |
| Glorieta | 2,450 | 172 |
| Queen | 3,117 | -495 |
| Grayburg | 3,619 | -997 |
| San Andres | 3,726 | -1,104 |
10 TOPS · FIRST 8
Bigby North E 10-342-173-38309
0.2 KM · DE3 Operating LLC · Section with this well →
| Santa Rosa | 1,000 | 1,622 |
| Rustler | 1,350 | 1,272 |
| Yates | 2,186 | 436 |
| Seven Rivers | 2,437 | 185 |
| Glorieta | 2,450 | 172 |
| Queen | 3,123 | -501 |
| Grayburg | 3,613 | -991 |
| San Andres | 3,720 | -1,098 |
12 TOPS · FIRST 8
Bigby South a 10-1542-173-38735
0.2 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Santa Rosa | 806 | 1,855 |
| Rustler | 1,358 | 1,303 |
| Yates | 2,194 | 467 |
| Seven Rivers | 2,454 | 207 |
| Queen | 3,091 | -430 |
| Grayburg | 3,556 | -895 |
| San Andres | 3,727 | -1,066 |
| Clear Fork | 5,692 | -3,031 |
10 TOPS · FIRST 8
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/17338303, documented in the API reference.