WELL · 42-371-36851 · DISTRICT 8
West Ranch #601
Pecos County · Bitterweed field · Vertical
West Ranch #601 (API 42-371-36851) is a well in Pecos County operated by Riata Energy Inc., completed October 12, 1998.
The RRC has issued 2 drilling permits between 1998 and 2002, permitted to 11,000 ft.
Completion filings report 7 formation tops, including Base Cretaceous (marker), Marathon Unconformity, Dimple, Tesnus.
No lease production has been reported under this well’s leases.
Operator of record
Oklahoma City, OK · P-5 Y, filed Apr 4, 2026 · 588 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Riata Energy Inc. |
| Production reports | Longfellow Energy, LPthrough Sep 2025 |
| Latest permit | Riata Energy, Inc.Sep 18, 2002 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,000
- total depth, ft
- 2
- permits on file
- Sep 18, 2002
- last permit issued
- Oct 12, 1998
- completed
- 0
- cumulative oil, bbl
- 1.33M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 1998 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 12, 1998
- Shut in
- —
- Plugged
- —
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 2 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| West Ranch G-10-192540 | Pinon (Overthrust) | Longfellow Energy, LP | 1 | 0 | 1.15M | Dec 2002 – Jul 2026 |
| West Ranch G-10-171831 | Bitterweed | Riata Energy, Inc. | 1 | 0 | 179K | Oct 1998 – May 2003 |
Gas, mcf lease total
Last 12 months 59 · prior 12 112(-47%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Riata Energy, Inc.Oct 1998 → Nov 2006
- 2Sandridge Energy, Inc.Dec 2006 → May 2009
- 3Sandridge Expl. and Prod., LLCJun 2009 → Feb 2016
- 4Occidental W TX Overthrust, Inc.Mar 2016 → Dec 2021
- 5Longfellow Energy, LPJan 2022 → Sep 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 523784-99 | Recompletion | Riata Energy, Inc. | Sep 18, 2002 | Sep 18, 2002 | Sep 25, 2002 | 11,000 |
| 477731-99 | Drill | Riata Energy, Inc. | Jul 6, 1998 | Jul 6, 1998 | Jul 22, 1998 | 9,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-10-171831 | — | — | — | — |
| — | — G-10-192540 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,966 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Base Cretaceous (marker)BASE CRETACEOUS | 2,080 | 1,886 |
| Marathon Unconformity | 2,475 | 1,491 |
| Dimple | 3,612 | 354 |
| Tesnus | 4,628 | -662 |
| 1ST Caballos | 5,165 | -1,199 |
| 2ND Caballos | 6,000 | -2,034 |
| 3RD Caballos | 8,512 | -4,546 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,186 | 5,488 | Perforated |
| 8,510 | 8,758 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,307 | 12.25 | 370 S |
| 9.625 | 1,340 | 12.25 | 370 S |
| 7 | 5,660 | 8.75 | 455 S |
| 7 | 5,700 | 8.75 | 455 S |
| 4.5 | 9,115 | 6.125 | 200 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 | Mar 13, 2003 | Jan 8, 2003 | Yes |
| 00 | Feb 4, 2003 | — | — |
| 00 | Apr 1, 2002 | Feb 22, 2002 | — |
| 00 | Mar 23, 1999 | Nov 25, 1998 | Yes |
| 00 | Feb 24, 1999 | — | — |
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 42-371-36851 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-371-36851 → 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/37136851, documented in the API reference.