TEXAS · WELLS · MARTIN COUNTY · STUBBLEFIELD "26A" LEASE · API 42-317-38997 · DISTRICT 7B
Stubblefield 26A #2
Martin County · Spraberry (Trend Area) field · Shut In · Vertical
- Fields on the latest permit · any of 3
- Mon Bak (Strawn) · Paul Page (Atoka) · Spraberry (Trend Area)
- Not one formation; the well must be completed in one of them, and no target formation is stated.
Stubblefield 26a #2 (API 42-317-38997) is a well in Martin County operated by Pioneer Natural Res. USA Inc., completed June 5, 2014 and listed as shut in on the RRC schedule, shut in May 1, 2025.
The RRC has issued one drilling permit, issued December 5, 2013, permitted to 10,751 ft.
Completion filings report 10 formation tops, including Yates, Grayburg, San Andres, Spraberry.
Its lease has reported 120K barrels of oil and 238K mcf of gas since February 2008, last reporting volume in March 2025. The lease carries 2 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
- 15,633
- 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 Mar 2025 |
| Latest permit | Pioneer Natural Res. USA, Inc.Dec 5, 2013 |
- 10,751
- total depth, ft
- 1
- permits on file
- Dec 5, 2013
- last permit issued
- Jun 5, 2014
- completed
- 120K
- cumulative oil, bbl
- 238K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Mar 2008 THROUGH Mar 2025
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jun 5, 2014
- Shut in
- May 1, 2025
- 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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Stubblefield "26A" O-10-38737 | Spraberry (Trend Area) | Pioneer Natural Res. USA, Inc. | 2 | 120K | 238K | Feb 2008 – Mar 2025 |
Oil, barrels lease total
Last 12 months 0 · prior 12 1,748(-100%)
Gas, mcf lease total
Last 12 months 0 · prior 12 2,432(-100%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Pioneer Natural Res. USA, Inc.Mar 2008 → Mar 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 771792-99 | Drill | Pioneer Natural Res. USA, Inc. | Oct 15, 2013 | Dec 5, 2013 | Apr 11, 2014 | 11,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 5, 2014 | Stubblefield 26A O-10-38737 | Spraberry (Trend Area) | Pioneer Natural Res. USA Inc. | Shut In · shut in May 1, 2025 | 10,751 |
Formation tops
As filed on W-2/G-1. Subsea from 2,688 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,362 | 326 |
| Grayburg | 4,157 | -1,469 |
| San AndresSAN ANDRES - ACTIVE CO2 FLOOD; H | 4,406 | -1,718 |
| Spraberry | 7,248 | -4,560 |
| Dean | 8,569 | -5,881 |
| Wolfcamp | 8,787 | -6,099 |
| Cisco | — | — |
| Pennsylvanian | — | — |
| Queen | — | — |
| Santa Rosa | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,626 | 10,608 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 334 | 17.5 | 370 S |
| 8.625 | 4,530 | 11 | 830 S |
| 5.5 | 10,751 | 7.875 | 727 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Nov 20, 2014 | Aug 28, 2014 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Jan 23, 2015. Neutron. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| NEUTRON POROSITYSpans Yates, Grayburg, San Andres, Spraberry, Dean, Wolfcamp | TIFF | 3,661 to 10,694 | Jan 23, 2015run Apr 24, 2014 | 7.58 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-317-38997 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-38997 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it. The University Lands library has no per-well link: then paste it into its 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/31738997, documented in the API reference.