WELL · 42-371-37227 · DISTRICT 8
West Ranch #603
Pecos County · Pinon (Overthrust) field · Producing · Vertical
West Ranch #603 (API 42-371-37227) is a well in Pecos County operated by Longfellow Energy LP, completed September 25, 2017 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued January 3, 2003, permitted to 12,000 ft.
It was permitted by Riata Energy, Inc. and has since transferred to Longfellow Energy LP on the wellbore schedule.
Completion filings report 6 formation tops, including Base Cretaceous (marker), Dimple, Tesnus, 1st Caballos.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Riata Energy, Inc.; the EWA schedule now lists a different operator.
Dallas, TX · P-5 Y, filed Dec 4, 2025 · 37 permits on file · (405) 306-6169
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Longfellow Energy LP |
| Production reports | Longfellow Energy, LPthrough Mar 2026 |
| Latest permit | Riata Energy, Inc.Jan 3, 2003 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,000
- total depth, ft
- 1
- permits on file
- Jan 3, 2003
- last permit issued
- Sep 25, 2017
- completed
- 0
- cumulative oil, bbl
- 857K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2003 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 25, 2017
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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 |
|---|---|---|---|---|---|---|
| West Ranch G-10-197929 | Pinon (Overthrust) | Longfellow Energy, LP | 1 | 0 | 857K | Aug 2003 – Jul 2026 |
Gas, mcf lease total
Last 12 months 836 · prior 12 3,335(-75%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Riata Energy, Inc.Aug 2003 → Nov 2006
- 2Sandridge Energy, Inc.Dec 2006 → May 2009
- 3Sandridge Expl. and Prod., LLCJun 2009 → Jan 2016
- 4Occidental W TX Overthrust, Inc.Mar 2016 → Dec 2021
- 5Longfellow Energy, LPJan 2022 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 526791-99 | Drill | Riata Energy, Inc. | Dec 30, 2002 | Jan 3, 2003 | Apr 19, 2003 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-10-197929 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,919 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Base Cretaceous (marker)BASE CRETACEOUS | 2,100 | 1,819 |
| Dimple | 3,520 | 399 |
| Tesnus | 4,863 | -944 |
| 1ST Caballos | 5,898 | -1,979 |
| 2ND Caballos | 6,935 | -3,016 |
| 3RD Caballos | 8,740 | -4,821 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,930 | 6,190 | Perforated |
| 7,638 | 8,167 | Perforated |
| 8,792 | 8,842 | Perforated |
| 9,040 | 9,068 | Perforated |
| 9,142 | 9,165 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,394 | 12.25 | 635 S |
| 4.5 | 9,418 | 6.125 | 475 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 →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Apr 1, 2020 | Jan 29, 2020 | — |
| 00 | Dec 30, 2003 | Sep 18, 2003 | Yes |
| 00 | Dec 9, 2003 | — | — |
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 42-371-37227 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-371-37227 → scanned completion filings
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/37137227, documented in the API reference.