TEXAS · WELLS · MARTIN COUNTY · ALLAR "27" LEASE · API 42-317-35031 · DISTRICT 7B
Allar 27 #1
Martin County · Spraberry (Trend Area) field · Vertical
Allar 27 #1 (API 42-317-35031) is a plugged well in Martin County, plugged January 9, 2026, last operated by Pioneer Natural Res. USA Inc..
The RRC has issued one drilling permit, issued September 10, 2007, permitted to 10,200 ft.
Completion filings report 3 formation tops, including Spraberry, Dean, Wolfcamp.
Its lease has reported 34.3K barrels of oil and 36.2K mcf of gas since March 2008, last reporting volume in November 2023.
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 Nov 2023 |
| Latest permit | Pioneer Natural Res. USA, Inc.Sep 10, 2007 |
- 10,200
- total depth, ft
- 1
- permits on file
- Sep 10, 2007
- last permit issued
- Jun 30, 2025
- completed
- 34.3K
- cumulative oil, bbl
- 36.2K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Mar 2008 THROUGH Nov 2023
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jun 30, 2025
- Shut in
- —
- Plugged
- Jan 9, 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.
Wells nearby
Every well with a location on file around this well, in any state, nearest first.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
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 |
|---|---|---|---|---|---|---|
| Allar "27" O-10-38750 | Spraberry (Trend Area) | Pioneer Natural Res. USA, Inc. | 1 | 34.3K | 36.2K | Mar 2008 – Nov 2023 |
Oil, barrels lease total
Last 12 months 0 · prior 12 0
Wells named Allar 27
Pioneer Natural Res. USA Inc.'s other wells filed under this lease name in Martin County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.
Loading the lease's wellsChain of custody
Every operator that reported production on this well's lease, in order.
- 1Pioneer Natural Res. USA, Inc.Mar 2008 → Nov 2023
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 645663-99 | Drill | Pioneer Natural Res. USA, Inc. | Sep 6, 2007 | Sep 10, 2007 | Jan 16, 2008 | 10,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 30, 2025 | Allar 27 O-10-38750 | Spraberry (Trend Area) | Pioneer Natural Res. USA Inc. | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,736 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| SpraberryTOP OF UPPER SPRABERRY | 7,322 | -4,586 |
| SpraberryTOP UPPER SPRABERRY | 7,322 | -4,586 |
| SpraberryUPPER SPRABERRY | 7,322 | -4,586 |
| SpraberryLOWER SPRABERRY | 7,828 | -5,092 |
| SpraberryTOP LOWER SPRABERRY | 7,828 | -5,092 |
| SpraberryTOP OF LOWER SPRABERRY | 7,828 | -5,092 |
| Dean | 8,672 | -5,936 |
| DeanTOP DEAN | 8,672 | -5,936 |
| DeanTOP OF DEAN | 8,672 | -5,936 |
| WolfcampTOP OF WOLFCAMP | 8,888 | -6,152 |
| WolfcampTOP WOLFCAMP | 8,888 | -6,152 |
| Wolfcamp | 8,888 | -6,152 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,400 | 7,438 | Perforated |
| 7,400 | 9,566 | Perforated |
| 8,090 | 8,194 | Perforated |
| 8,790 | 8,883 | Perforated |
| 8,798 | 9,251 | Perforated |
| 8,978 | 9,251 | Perforated |
| 9,298 | 9,302 | Perforated |
| 9,298 | 9,566 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 319 | 11 | 300 S |
| 4.5 | 10,296 | 7.875 | 1,000 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 | Sep 5, 2025 | Aug 25, 2025 | — |
| 00 | Nov 30, 2016 | Oct 18, 2016 | — |
| 00 | Jan 21, 2014 | Apr 10, 2013 | — |
| 00 | Jun 28, 2012 | Sep 13, 2011 | — |
| 00 | Nov 10, 2008 | May 16, 2008 | Yes |
| 00 | Nov 3, 2008 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Dec 5, 2008. 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 Spraberry, Dean, Wolfcamp | TIFF | 3,820 to 10,222 | Dec 5, 2008run Feb 6, 2008 | 4.23 |
"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 42-317-35031 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-35031 → 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/31735031, documented in the API reference.