TEXAS · WELLS · PECOS COUNTY · ALLISON LEASE · API 42-371-38009 · DISTRICT 7B

Allison #2005

Y

Pecos County · Pinon (Overthrust) field · Producing  · Vertical

Fields on the latest permit · any of 2
Allison Ranch (Wolfcamp) · Pinon (Overthrust)
Not one formation; the well must be completed in one of them, and no target formation is stated.

Allison #2005 (API 42-371-38009) is a well in Pecos County operated by Longfellow Energy LP, completed November 16, 2007 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued August 3, 2007, permitted to 6,100 ft.

It was permitted by Sandridge Energy, Inc. and has since transferred to Longfellow Energy LP on the wellbore schedule.

Completion filings report 2 formation tops, including Wolfcamp, Tesnus.

Its lease has reported 55 barrels of oil and 246K mcf of gas since November 2007, last reporting volume in March 2026.

Operator of record

Longfellow Energy LP

Permitted by Sandridge Energy, Inc.; the EWA schedule now lists a different operator.

Based in
Dallas, TX
P-5 status
Active (A)
P-5 last filed
Mar 26, 2026
Permits on file
38
Phone
(972) 590-9900

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleLongfellow Energy LP
Production reportsLongfellow Energy, LPthrough Mar 2026
Latest permitSandridge Energy, Inc.Aug 3, 2007

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

6,100
total depth, ft
1
permits on file
Aug 3, 2007
last permit issued
Nov 16, 2007
completed
55
cumulative oil, bbl
246K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Nov 2007 THROUGH Mar 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Nov 16, 2007
Shut in
—
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; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Allison G-10-237928Pinon (Overthrust)Longfellow Energy, LP155246KNov 2007 – Mar 2026

Gas, mcf lease total

Last 12 months 677 · prior 12 305(+122%)

0100200202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1Sandridge Energy, Inc.Nov 2007 → May 2009
  2. 2Sandridge Expl. and Prod., LLCJun 2009 → Feb 2016
  3. 3Occidental W TX Overthrust, Inc.Mar 2016 → Dec 2021
  4. 4Longfellow Energy, LPJan 2022 → Mar 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
643156-99DrillSandridge Energy, Inc.Jul 24, 2007Aug 3, 2007Sep 5, 200712,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Nov 16, 2007Allison G-10-237928Pinon (Overthrust)Longfellow Energy LPProducing6,100

Formation tops

As filed on W-2/G-1. Subsea from 4,350 ft elevation.Download CSV →

FormationMD ftSubsea
Wolfcamp2,1802,170
Tesnus4,900-550
Tesnus5,710-1,360

Perforations

Perforated and open-hole intervals.

FromToType
4,9145,986Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,49312.251,648 S
5.56,1008.751,050 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 →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Sep 10, 2008Mar 7, 2008Yes
00Aug 14, 2008——

Well logs

1 log loaded from the RRC's log index, the latest received Oct 19, 2010. 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 describedFiles Intervalft, as filedDatereceivedSizeMB
RESISTIVITYSpans WolfcampTIFF1,490 to 4,857Oct 19, 2010run Sep 30, 20076.94

"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.

Find logs withinmiles of this well:List →Map →

Search the well logs loaded into Petrora →

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.

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/37138009, documented in the API reference.