TEXAS · WELLS · YOAKUM COUNTY · WEST SAN ANDRES UNIT LEASE · API 42-501-33578 · DISTRICT 7B
West San Andres Unit #42
Yoakum County · West field · Vertical
West San Andres Unit #42 (API 42-501-33578) is a plugged well in Yoakum County, plugged June 26, 2008, last operated by Riley Permian Operating CO LLC.
The RRC has issued one drilling permit, issued June 20, 1990, permitted to 5,400 ft.
It was permitted by Greenhill Petroleum Corporation and has since transferred to Riley Permian Operating CO LLC on the wellbore schedule.
Completion filings report one formation top, including San Andres.
Its lease has reported 485K barrels of oil and 177K mcf of gas since January 1993, with no volume in the three years through April 2026. The lease carries 41 wells, so these are lease totals, not this well alone.
Operator of record
Riley Permian Operating Co LLC
Permitted by Greenhill Petroleum Corporation; 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
- 295
- Phone
- (405) 415-8699
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Riley Permian Operating Co LLC |
| Production reports | Riley Permian Operating Co, LLCthrough Nov 2021 |
| Latest permit | Greenhill Petroleum CorporationJun 20, 1990 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,400
- total depth, ft
- 1
- permits on file
- Jun 20, 1990
- last permit issued
- Sep 25, 1990
- completed
- 485K
- cumulative oil, bbl
- 177K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Nov 2021
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 25, 1990
- Shut in
- —
- Plugged
- Jun 26, 2008
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 41 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| West San Andres Unit O-11-60392 | West | Riley Permian Operating Co, LLC | 41 | 485K | 177K | Jan 1993 – Nov 2021 |
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.
- 1Greenhill Petroleum CorporationJan 1993 → Nov 1997
- 2Titan Resources I, Inc.Dec 1997 → May 2000
- 3Pure Resources, L.P.Jun 2000 → Oct 2000
- 4Permian Resources, Inc.Nov 2000 → Sep 2003
- 5OK Arena Operating CompanyOct 2003 → May 2007
- 6Thompson, J. CleoJul 2007 → Jul 2019
- 7Riley Permian Operating Co, LLCAug 2019 → Nov 2021
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 374500-99 | Drill | Greenhill Petroleum Corporation | Jun 14, 1990 | Jun 20, 1990 | — | 5,400 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 25, 1990 | West San Andres Unit O-11-60392 | West | Riley Permian Operating Co LLC | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,666 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| San Andres | 5,143 | -1,477 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,144 | 5,282 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 408 | 12.25 | 300 S |
| 5.5 | 5,345 | 7.875 | 250 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 →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Nov 28, 1990 | Oct 12, 1990 | Yes |
| 00 | Nov 26, 1990 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Oct 9, 2008. Neutron. 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 described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| NEUTRON POROSITYSpans San Andres | TIFF | 3,328 to 5,330 | Oct 9, 2008run Sep 12, 1990 | 1.09 |
"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.
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 42-501-33578 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-501-33578 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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/50133578, documented in the API reference.