WELL · 42-501-33298 · DISTRICT 8
West M. M. #9
Yoakum County · West (Devonian) field · Shut IN · Vertical
West M. M. #9 (API 42-501-33298) is a well in Yoakum County operated by Riley Permian Operating CO LLC, completed March 3, 2022 and listed as shut in on the RRC schedule.
The RRC has issued one drilling permit, issued October 16, 1987, permitted to 11,300 ft.
It was permitted by Amoco Production Company and has since transferred to Riley Permian Operating CO LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Rustler, San Andres, Wolfcamp, Devonian.
Its lease has reported 1.17M barrels of oil and 190K mcf of gas since January 1993, last reporting in July 2026. The lease carries 5 wells, so these are lease totals, not this well alone.
Operator of record
Riley Permian Operating Co LLC
Permitted by Amoco Production Company; the EWA schedule now lists a different operator.
- Based in
- Oklahoma City, OK
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Apr 16, 2026
- Permits on file
- 294
- Phone
- (405) 415-8699
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Riley Permian Operating Co LLC |
| Production reports | Grizzly OP of Delaware, LLCthrough Mar 2020 |
| Latest permit | Amoco Production CompanyOct 16, 1987 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,300
- total depth, ft
- 1
- permits on file
- Oct 16, 1987
- last permit issued
- Mar 3, 2022
- completed
- 1.17M
- cumulative oil, bbl
- 190K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 3, 2022
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
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; they carry 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| West, M. M. O-11-61675 | West (Devonian) | Riley Permian Operating Co, LLC | 5 | 1.17M | 190K | Jan 1993 – Jul 2026 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1MW Petroleum CorporationJan 1993 → Aug 1998
- 2Apache CorporationSep 1998 → Feb 2008
- 3Vanguard Permian, LLCMar 2008 → Apr 2015
- 4Vanguard Operating, LLCMay 2015 → Aug 2019
- 5Grizzly OP of Delaware, LLCSep 2019 → Mar 2020
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 337415-99 | Drill | Amoco Production Company | Oct 15, 1987 | Oct 16, 1987 | — | 11,300 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-11-61675 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,650 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rustler | 2,204 | 1,446 |
| San Andres | 4,592 | -942 |
| Wolfcamp | 8,903 | -5,253 |
| Devonian | 11,063 | -7,413 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,074 | 11,100 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 410 | 17.5 | 550 S |
| 9.625 | 4,625 | 12.25 | 1,350 S |
| 7 | 11,200 | 8.75 | 1,600 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 25, 2022 | Mar 15, 2022 | — |
| 00 | Mar 4, 1988 | Feb 22, 1988 | Yes |
| 00 | Mar 1, 1988 | — | — |
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 42-501-33298 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-501-33298 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). 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/50133298, documented in the API reference.