WELL · 42-371-38697 · DISTRICT 8

Allison #2021

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

Allison #2021 (API 42-371-38697) is a well in Pecos County operated by Longfellow Energy LP, completed August 29, 2010 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued May 26, 2010, permitted to 14,000 ft.

It was permitted by Sandridge Expl. And Prod., LLC and has since transferred to Longfellow Energy LP on the wellbore schedule.

Completion filings report 3 formation tops, including 1st Caballos, Base K, Tesnus 1a.

No lease production has been reported under this well’s leases.

Operator of record

Longfellow Energy LP

Permitted by Sandridge Expl. and Prod., LLC; 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
37
Phone
(972) 590-9900

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleLongfellow Energy LP
Production reportsLongfellow Energy, LPthrough Apr 2024
Latest permitSandridge Expl. and Prod., LLCMay 26, 2010

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

14,000
total depth, ft
1
permits on file
May 26, 2010
last permit issued
Aug 29, 2010
completed
0
cumulative oil, bbl
3.22M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Aug 2010 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Aug 29, 2010
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-10-259802Pinon (Overthrust)Longfellow Energy, LP103.22MAug 2010 – Jul 2026

Gas, mcf lease total

Last 12 months 0 · prior 12 0

05K10K202420252026

Chain of custody

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

  1. 1Sandridge Expl. and Prod., LLCAug 2010 → Feb 2016
  2. 2Occidental W TX Overthrust, Inc.Mar 2016 → Dec 2021
  3. 3Longfellow Energy, LPJan 2022 → Apr 2024

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
696379-99DrillSandridge Expl. and Prod., LLCMay 20, 2010May 26, 2010Jun 17, 201014,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-10-259802————

Formation tops

As filed on W-2/G-1. Subsea from 4,538 ft elevation.Download CSV →

FormationMD ftSubsea
1ST Caballos——
Base K——
Tesnus 1A——

Perforations

Perforated and open-hole intervals.

FromToType
7,4868,064Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,58512.25980 S
77,8548.75390 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 →

SuffixFiledW-2 / G-1 dateLogs referenced
00May 24, 2011Feb 23, 2011Yes

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.

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/37138697, documented in the API reference.