TEXAS · WELLS · PECOS COUNTY · ALLISON LEASE · API 42-371-37428 · DISTRICT 7B
Allison #8
Pecos County · Pinon (Overthrust) field · Vertical
Allison #8 (API 42-371-37428) is a plugged well in Pecos County, plugged August 8, 2012, last operated by Sandridge Expl. And Prod. LLC.
The RRC has issued one drilling permit, issued July 8, 2004, permitted to 7,000 ft.
It was permitted by Riata Energy, Inc. and has since transferred to Sandridge Expl. And Prod. LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Base Cretaceous (marker), Tesnus, 1st Caballos.
Its lease has reported 33.5K mcf of gas since February 2005, with no volume in the three years through April 2026.
Operator of record
Permitted by Riata Energy, Inc.; the EWA schedule now lists a different operator.
- Based in
- Oklahoma City, OK
- P-5 status
- Active (A)
- P-5 last filed
- Sep 10, 2025
- Permits on file
- 3,454
- Phone
- (405) 429-5500
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Sandridge Expl. and Prod. LLC |
| Production reports | Sandridge Expl. and Prod., LLCthrough Aug 2011 |
| Latest permit | Riata Energy, Inc.Jul 8, 2004 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,000
- total depth, ft
- 1
- permits on file
- Jul 8, 2004
- last permit issued
- Feb 28, 2005
- completed
- 0
- cumulative oil, bbl
- 33.5K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Mar 2005 THROUGH Aug 2011
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 28, 2005
- Shut in
- —
- Plugged
- Aug 8, 2012
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Allison G-10-207798 | Pinon (Overthrust) | Sandridge Expl. and Prod., LLC | 1 | 0 | 33.5K | Feb 2005 – Aug 2011 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Riata Energy, Inc.Mar 2005 → Nov 2006
- 2Sandridge Energy, Inc.Dec 2006 → May 2009
- 3Sandridge Expl. and Prod., LLCJun 2009 → Aug 2011
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 548003-99 | Drill | Riata Energy, Inc. | Jul 9, 2004 | Jul 8, 2004 | Dec 24, 2004 | 7,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 28, 2005 | Allison G-10-207798 | Pinon (Overthrust) | Sandridge Expl. and Prod. LLC | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 4,260 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Base Cretaceous (marker)BASE CRETACEOUS | 2,310 | 1,950 |
| Tesnus | 5,100 | -840 |
| 1ST Caballos | 5,770 | -1,510 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,104 | 5,106 | Perforated |
| 5,180 | 5,194 | Perforated |
| 5,323 | 5,339 | Perforated |
| 5,376 | 5,382 | Perforated |
| 5,392 | 5,396 | Perforated |
| 5,402 | 5,422 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,801 | 12.25 | 2,450 S |
| 5.5 | 6,322 | 8.75 | 445 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 | Jul 8, 2005 | Mar 31, 2005 | Yes |
| 00 | Apr 27, 2005 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Aug 15, 2008. Resistivity. 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 |
|---|---|---|---|---|
| RESISTIVITYSpans Base Cretaceous (marker), Tesnus, 1st Caballos | TIFF | 1,801 to 5,996 | Aug 15, 2008run Jan 31, 2005 | 6.94 |
"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 42-371-37428 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-371-37428 → 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/37137428, documented in the API reference.