TEXAS · WELLS · UPTON COUNTY · SOUTHWEST MCELROY UNIT LEASE · API 42-461-32095 · DISTRICT 7B
Southwest McElroy Unit #51
Upton County · McElroy field · Vertical
Southwest Mcelroy Unit #51 (API 42-461-32095) is a plugged well in Upton County, plugged November 2, 2021, last operated by United Oil & Shale LLC.
The RRC has issued one drilling permit, issued November 21, 1983, permitted to 3,300 ft.
It was permitted by Sun Expl. & Prod. CO.-Midland and has since transferred to United Oil & Shale LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Rustler, Yates, Grayburg, San Andres.
Its lease has reported 703K barrels of oil and 127K mcf of gas since January 1993, last reporting in July 2026. The lease carries 54 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Sun Expl. & Prod. Co.-Midland; the EWA schedule now lists a different operator.
- Based in
- Woodward, OK
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Mar 31, 2026
- Phone
- (806) 440-4844
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | United Oil & Shale LLC |
| Production reports | United Oil & Shale LLCthrough Mar 2026 |
| Latest permit | Sun Expl. & Prod. Co.-MidlandNov 21, 1983 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 3,300
- total depth, ft
- 1
- permits on file
- Nov 21, 1983
- last permit issued
- Aug 23, 1984
- completed
- 703K
- cumulative oil, bbl
- 127K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Aug 23, 1984
- Shut in
- —
- Plugged
- Nov 2, 2021
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 54 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Southwest McElroy Unit O-10-20273 | McElroy | United Oil & Shale LLC | 54 | 703K | 127K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 179 · prior 12 1,541(-88%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Walsh & Watts, Inc.Jan 1993 → Nov 2025
- 2United Oil & Shale LLCMar 2026 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 223229-99 | Drill | Sun Expl. & Prod. Co.-Midland | Nov 14, 1983 | Nov 21, 1983 | Nov 25, 1983 | 3,300 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Aug 23, 1984 | Southwest McElroy Unit O-10-20273 | McElroy | United Oil & Shale LLC | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,808 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rustler | 1,134 | 1,674 |
| Yates | 2,045 | 763 |
| Grayburg | 2,818 | -10 |
| San Andres | 2,981 | -173 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,984 | 3,144 | Perforated |
| 3,150 | 3,170 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 595 | 12.25 | 450 sx |
| 5.5 | 3,200 | 7.875 | 900 sx |
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 | Sep 26, 1984 | Sep 17, 1984 | — |
| 00 | Sep 21, 1984 | Sep 17, 1984 | — |
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 42-461-32095 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-32095 → 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/46132095, documented in the API reference.