TEXAS · WELLS · PECOS COUNTY · LONGFELLOW LEASE · API 42-371-37132 · DISTRICT 7B

Longfellow #421

Shut in

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

Longfellow #421 (API 42-371-37132) is a well in Pecos County operated by Longfellow Energy LP, completed March 9, 2002 and listed as producing on the RRC schedule, shut in April 1, 2026.

The RRC has issued one drilling permit, issued November 21, 2001, permitted to 4,500 ft.

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

Completion filings report 3 formation tops, including Base Cretaceous (marker), Dimple, Tesnus.

Its lease has reported 320 barrels of oil and 855K mcf of gas since March 2002, last reporting volume in March 2026.

Operator of record

Longfellow Energy LP

Permitted by Riata 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
41
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 permitRiata Energy, Inc.Nov 21, 2001

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

4,500
total depth, ft
1
permits on file
Nov 21, 2001
last permit issued
Mar 9, 2002
completed
320
cumulative oil, bbl
855K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Apr 2002 THROUGH Mar 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Mar 9, 2002
Shut in
Apr 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
Longfellow G-10-188448Pinon (Overthrust)Longfellow Energy, LP1320855KMar 2002 – Mar 2026

Gas, mcf lease total

Last 12 months 1,470 · prior 12 649(+127%)

05001K202420252026

Chain of custody

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

  1. 1Riata Energy, Inc.Apr 2002 → Nov 2006
  2. 2Sandridge Energy, Inc.Dec 2006 → May 2009
  3. 3Sandridge Expl. and Prod., LLCJun 2009 → Feb 2016
  4. 4Occidental W TX Overthrust, Inc.Mar 2016 → Dec 2021
  5. 5Longfellow Energy, LPJan 2022 → Mar 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
515491-99DrillRiata Energy, Inc.Nov 20, 2001Nov 21, 2001Jan 21, 20029,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Mar 9, 2002Longfellow G-10-188448Pinon (Overthrust)Longfellow Energy LPProducing · shut in Apr 1, 20264,500

Formation tops

As filed on W-2/G-1. Subsea from 4,222 ft elevation.Download CSV →

FormationMD ftSubsea
Base Cretaceous (marker)BASE CRETACEOUS2,1102,112
Dimple2,6741,548
Tesnus3,261961

Perforations

Perforated and open-hole intervals.

FromToType
3,2703,412Perforated
3,5703,706Perforated
4,1844,325Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.6251,45711670 S
5.54,5007.875460 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
00Jul 8, 2002Mar 25, 2002Yes
00May 9, 2002——

Well logs

The RRC's map lists this well among those with logs online. Its monthly inventories loaded here, which start in July 2006, list none for it, so none are itemized.

Open the RRC's log search for this well ↗

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/37137132, documented in the API reference.