WELL · 42-461-31843 · DISTRICT 8
McElroy Penn Unit #25
Upton County · Wildcat field · Vertical
Mcelroy Penn Unit #25 (API 42-461-31843) is a well in Upton County operated by Chevron U. S. A. Inc., completed April 27, 1982.
The RRC has issued 2 drilling permits between 1981 and 1983, permitted to 9,600 ft.
It was permitted by Aminoil USA Inc. and has since transferred to Chevron U. S. A. Inc. on the wellbore schedule.
Its lease has reported 277K barrels of oil and 206K mcf of gas since January 1993, last reporting in July 2026. The lease carries 27 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Aminoil USA Inc.; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Nov 4, 2025 · 9,291 permits on file · (800) 231-0623
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Chevron U. S. A. Inc. |
| Production reports | Q Natural Resources, LLCthrough Apr 2026 |
| Latest permit | Aminoil USA Inc.Feb 14, 1983 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,600
- total depth, ft
- 2
- permits on file
- Feb 14, 1983
- last permit issued
- Apr 27, 1982
- completed
- 277K
- cumulative oil, bbl
- 206K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 27, 1982
- 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 lease this well is completed on; they carry 27 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| University-AI O-10-8252 | McElroy | Q Natural Resources, LLC | 27 | 277K | 206K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 83 · prior 12 121(-31%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Phillips Petroleum CompanyJan 1993 → Oct 1994
- 2Coastal Management CorporationNov 1994 → Jul 2001
- 3Cambrian Management LtdAug 2001 → Sep 2007
- 4Cambrian Management, Ltd.Oct 2007 → Jul 2019
- 5Arch Oil & Gas, LLCAug 2019 → Apr 2022
- 6Q Natural Resources, LLCMay 2022 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 221027-99 | Recompletion | Aminoil USA Inc. | Dec 27, 1982 | Feb 14, 1983 | — | 9,358 |
| 141601-99 | Drill | Gulf Oil Corp. | Nov 30, 1981 | Nov 30, 1981 | — | 9,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-8252 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,434 | 3,798 | Perforated |
| 7,690 | 9,276 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 11.75 | 490 | 14.75 | 325 S |
| 2.375 | 3,829 | — | — |
| 8.625 | 4,212 | 11 | 1,100 S |
| 5.5 | 9,358 | 7.875 | 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 | Jan 12, 1984 | Nov 15, 1983 | — |
| 00 | Jan 12, 1984 | Jul 22, 1982 | — |
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 42-461-31843 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-31843 → 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/46131843, documented in the API reference.