TEXAS · WELLS · PECOS COUNTY · ALLISON LEASE · API 42-371-37973 · DISTRICT 7B

Allison #2115

Shut in

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

Allison #2115 (API 42-371-37973) is a well in Pecos County operated by Longfellow Energy LP, completed December 30, 2007 and listed as producing on the RRC schedule, shut in February 1, 2026.

The RRC has issued one drilling permit (amended once), issued June 29, 2007, permitted to 5,170 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 Sand.

Its lease has reported 286 barrels of oil and 1.86M mcf of gas since December 2007, last reporting volume in January 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 Jan 2026
Latest permitSandridge Energy, Inc.Jun 29, 2007

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

5,170
total depth, ft
2
permits on file
Jun 29, 2007
last permit issued
Dec 30, 2007
completed
286
cumulative oil, bbl
1.86M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Dec 2007 THROUGH Jan 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Dec 30, 2007
Shut in
Feb 1, 2026
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-10-239362Pinon (Overthrust)Longfellow Energy, LP12861.86MDec 2007 – Jan 2026

Gas, mcf lease total

Last 12 months 118 · prior 12 65(+82%)

01K2K3K202420252026

Chain of custody

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

  1. 1Sandridge Energy, Inc.Dec 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 → Jan 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
640911-98DrillSandridge Energy, Inc.Oct 11, 2007Jun 29, 2007Nov 9, 20079,000
640911-99DrillSandridge Energy, Inc.Jun 18, 2007Jun 29, 2007Nov 9, 20079,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Dec 30, 2007Allison G-10-239362Pinon (Overthrust)Longfellow Energy LPProducing · shut in Feb 1, 20265,170

Formation tops

As filed on W-2/G-1. Subsea from 4,379 ft elevation.Download CSV →

FormationMD ftSubsea
WolfcampWOLFCAMP LIMESTONE2,6541,725
WolfcampWOLFCAMP SANDSTONE2,8121,567
Tesnus Sand4,101278

Perforations

Perforated and open-hole intervals.

FromToType
4,1104,164Perforated
4,4804,677Perforated
4,7364,992Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,44612.25900 S
4.55,1598.751,165 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
00Oct 8, 2008Mar 10, 2008Yes
00Oct 1, 2008——

Well logs

1 log loaded from the RRC's log index, the latest received Dec 14, 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 Wolfcamp, Tesnus SandTIFF1,446 to 5,115Dec 14, 2010run Nov 25, 20076.66

"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/37137973, documented in the API reference.