WELL · 42-317-38912 · DISTRICT 8
Robb A #4
Martin County · Spraberry (Trend Area) field · Shut IN · Vertical
Robb A #4 (API 42-317-38912) is a well in Martin County operated by Pioneer Natural Res. USA Inc., completed February 10, 2025 and listed as shut in on the RRC schedule, shut in April 1, 2023.
The RRC has issued one drilling permit, issued September 17, 2013, permitted to 10,272 ft.
Completion filings report 17 formation tops, including Yates, Grayburg, San Andres, Spraberry.
Its lease has reported 170K barrels of oil and 500K mcf of gas since November 2012, last reporting in July 2026. The lease carries 8 wells, so these are lease totals, not this well alone.
Operator of record
- 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 Feb 2024 |
| Latest permit | Pioneer Natural Res. USA, Inc.Sep 17, 2013 |
- 10,272
- total depth, ft
- 1
- permits on file
- Sep 17, 2013
- last permit issued
- Feb 10, 2025
- completed
- 170K
- cumulative oil, bbl
- 500K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 2012 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 10, 2025
- Shut in
- Apr 1, 2023
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 8 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Robb 'A' O-10-43448 | Spraberry (Trend Area) | Pioneer Natural Res. USA, Inc. | 8 | 170K | 500K | Nov 2012 – Jul 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.
- 1Pioneer Natural Res. USA, Inc.Nov 2012 → Feb 2024
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 769848-99 | Drill | Pioneer Natural Res. USA, Inc. | Sep 11, 2013 | Sep 17, 2013 | Mar 10, 2014 | 10,685 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 10, 2025 | Robb A O-10-43448 | Spraberry (Trend Area) | Pioneer Natural Res. USA Inc. | Shut IN · shut in Apr 1, 2023 | 10,272 |
Formation tops
As filed on W-2/G-1. Subsea from 2,582 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,041 | 541 |
| Grayburg | 3,674 | -1,092 |
| San Andres | 3,745 | -1,163 |
| Spraberry | 6,678 | -4,096 |
| Dean | 7,966 | -5,384 |
| Wolfcamp | 8,136 | -5,554 |
| Strawn | 9,901 | -7,319 |
| Atoka | 9,984 | -7,402 |
| Mississippian | 10,170 | -7,588 |
| Cisco | — | — |
| Devonian | — | — |
| Ellenburger | — | — |
| Fusselman | — | — |
| Pennsylvanian | — | — |
| Queen | — | — |
| Santa Rosa | — | — |
| Silurian (undifferentiated)SILURIAN | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,204 | 10,164 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 323 | 17.5 | 370 S |
| 8.625 | 4,356 | 11 | 840 S |
| 5.5 | 10,272 | 7.875 | 900 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 | Oct 2, 2025 | Aug 27, 2025 | — |
| 00 | Dec 4, 2014 | Sep 5, 2014 | 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 42-317-38912 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-38912 → 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.
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/31738912, documented in the API reference.