WELL · 42-383-40962 · DISTRICT 7
Mustang West a 8-27 #4301H
Reagan County · Spraberry (Trend Area) field · Producing · Horizontal
Mustang West A 8-27 #4301H (API 42-383-40962) is a horizontal well in Reagan County operated by Pioneer Natural Res. USA Inc., completed August 31, 2021 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued March 2, 2021, permitted to 9,710 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 8 formation tops, including Queen, Grayburg, San Andres, Clear Fork.
Its lease has reported 294K barrels of oil and 1.95M mcf of gas since August 2021, last reporting in July 2026.
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 · 15,618 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 LLCMar 2, 2021 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,710
- total depth, ft
- 1
- permits on file
- Mar 2, 2021
- last permit issued
- Aug 31, 2021
- completed
- 294K
- cumulative oil, bbl
- 1.95M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2021 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 31, 2021
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
31.401523, -101.535414
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Reagan 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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mustang West a 8-27 O-9-21402 | Spraberry (Trend Area) | Pioneer Natural Res. USA, Inc. | 1 | 294K | 1.95M | Aug 2021 – Jul 2026 |
Gas, mcf lease total
Last 12 months 364,443 · prior 12 227,956(+60%)
Oil, barrels lease total
Last 12 months 11,236 · prior 12 19,554(-43%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Pioneer Natural Res. USA, Inc.Aug 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 867949-99 | Drill | DE3 Operating LLC | Feb 25, 2021 | Mar 2, 2021 | Mar 25, 2021 | 9,710 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-21402 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,580 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen | 2,447 | 133 |
| Grayburg | 2,848 | -268 |
| San AndresSAN ANDRES - SALTWATER FLOW, POS | 2,986 | -406 |
| Clear ForkCLEARFORK | 4,840 | -2,260 |
| Spraberry | 5,833 | -3,253 |
| Ellenburger | — | — |
| Fusselman | — | — |
| Strawn | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,103 | 18,124 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 638 | 17.5 | 545 S |
| 9.625 | 7,358 | 12.25 | 530 S |
| 9.625 | 7,538 | 12.25 | 1,010 S |
| 5.5 | 18,305 | 8.5 | 2,140 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 | Dec 8, 2021 | Nov 29, 2021 | — |
| 00 | Nov 9, 2021 | Oct 15, 2021 | 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 42-383-40962 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-383-40962 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. 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.
Mustang West C 8-2742-383-40964
0.0 KM · DE3 Operating LLC · Section with this well →
| Queen | 2,443 | 137 |
| Grayburg | 2,839 | -259 |
| San Andres | 2,891 | -311 |
| Clear Fork | 4,880 | -2,300 |
| Spraberry | 5,825 | -3,245 |
| Fusselman | — | |
| Strawn | — | |
| Ellenburger | — |
Mustang West C 8-2742-383-40963
0.0 KM · DE3 Operating LLC · Section with this well →
| Queen | 2,450 | 130 |
| Grayburg | 2,834 | -254 |
| San Andres | 2,985 | -405 |
| Clear Fork | 4,832 | -2,252 |
| Spraberry | 5,827 | -3,247 |
| Fusselman | — | |
| Strawn | — | |
| Ellenburger | — |
Mustang West D 8-2742-383-40965
0.0 KM · DE3 Operating LLC · Section with this well →
| Queen | 2,448 | 132 |
| Grayburg | 2,842 | -262 |
| San Andres | 2,979 | -399 |
| Clear Fork | 4,883 | -2,303 |
| Spraberry | 5,811 | -3,231 |
| Strawn | — | |
| Ellenburger | — | |
| Fusselman | — |
Brynn J42-383-41225
1.7 KM · Hibernia Resources III, LLC · Section with this well →
| San Andres | 300 | 2,220 |
| Queen | 2,354 | 166 |
| Grayburg | 2,625 | -105 |
| Clear Fork | 4,949 | -2,429 |
| Spraberry | 5,833 | -3,313 |
| Wolfcamp | 7,407 | -4,887 |
| Ellenburger | — | |
| Strawn | — |
9 TOPS · FIRST 8
Brynn I42-383-41224
1.7 KM · Hibernia Resources III, LLC · Section with this well →
| Queen | 2,351 | 169 |
| Grayburg | 2,623 | -103 |
| San Andres | 2,996 | -476 |
| Clear Fork | 4,946 | -2,426 |
| Spraberry | 5,840 | -3,320 |
| Wolfcamp | 7,407 | -4,887 |
| Strawn | — | |
| Fusselman | — |
9 TOPS · FIRST 8
Brynn H42-383-41223
1.7 KM · Hibernia Resources III, LLC · Section with this well →
| Queen | 2,357 | 163 |
| Grayburg | 2,632 | -112 |
| San Andres | 3,005 | -485 |
| Clear Fork | 4,961 | -2,441 |
| Spraberry | 5,845 | -3,325 |
| Wolfcamp | 8,115 | -5,595 |
| Ellenburger | — | |
| Fusselman | — |
9 TOPS · FIRST 8
Brynn G42-383-41222
1.7 KM · Hibernia Resources III, LLC · Section with this well →
| Queen | 2,358 | 162 |
| Grayburg | 2,627 | -107 |
| San Andres | 2,980 | -460 |
| Clear Fork | 4,977 | -2,457 |
| Spraberry | 5,867 | -3,347 |
| Wolfcamp | 7,435 | -4,915 |
| Strawn | — | |
| Fusselman | — |
9 TOPS · FIRST 8
Brynn F42-383-41221
1.7 KM · Hibernia Resources III, LLC · Section with this well →
| Queen | 2,358 | 163 |
| Grayburg | 2,653 | -132 |
| San Andres | 2,990 | -469 |
| Clear Fork | 4,991 | -2,470 |
| Spraberry | 5,879 | -3,358 |
| Wolfcamp | 7,438 | -4,917 |
| Fusselman | — | |
| Ellenburger | — |
9 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/38340962, documented in the API reference.