TEXAS · WELLS · UPTON COUNTY · API 42-461-03918 · DISTRICT 6E
McElroy Ranch Co. #129 #23
Upton County · Wilshire (Ellenburger) field · Shut In · Vertical
Mcelroy Ranch CO. #129 #23 (API 42-461-03918) is a well in Upton County operated by Xto Energy Inc., completed August 27, 2008 and listed as shut in on the RRC schedule, shut in May 1, 2022.
The RRC has issued 2 drilling permits between 1995 and 2008, permitted to 12,158 ft.
It was permitted by Exxon Mobil Corporation and has since transferred to Xto Energy Inc. on the wellbore schedule.
Completion filings report 6 formation tops, including Rustler, San Andres, Wolfcamp, Devonian.
Its 2 leases have reported 64.4K barrels of oil and 3.74M mcf of gas since January 1993, last reporting in July 2026. The leases carry 4 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Exxon Mobil Corporation; the EWA schedule now lists a different operator.
- Based in
- Spring, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Apr 8, 2026
- Permits on file
- 16,156
- Phone
- (346) 502-1572
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | XTO Energy Inc. |
| Production reports | XTO Energy Inc.through Apr 2022 |
| Latest permit | Exxon Mobil CorporationAug 14, 2008 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,158
- total depth, ft
- 2
- permits on file
- Aug 14, 2008
- last permit issued
- —
- completed
- 64.4K
- cumulative oil, bbl
- 3.74M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- —
- Shut in
- May 1, 2022
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 4 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| McElroy Ranch Co 129 G-9-161840 | Wilshire (Consolidated) | XTO Energy Inc. | 1 | 0 | 3.68M | Dec 1996 – Jul 2026 |
| McElroy Ranch Co. #129 O-9-2136 | Wilshire (Ellenburger) | XTO Energy Inc. | 3 | 64.4K | 61.4K | 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.
- 1Exxon Corp.Jan 1993 → Mar 2000
- 2Exxon Mobil CorporationApr 2000 → Dec 2011
- 3XTO Energy Inc.Jan 2012 → Apr 2022
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 667828-99 | Recompletion | Exxon Mobil Corporation | Jul 29, 2008 | Aug 14, 2008 | — | 11,254 |
| 439927-99 | Recompletion | Exxon Corp. | Sep 15, 1995 | Sep 18, 1995 | Jun 10, 1996 | 12,158 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Aug 27, 2008 | McElroy Ranch Co 129 G-9-161840 | Wilshire (Consolidated) | XTO Energy Inc. | Temp Abandoned · shut in May 1, 2022 | 12,158 |
| — | McElroy Ranch Co. #129 O-9-2136 | Wilshire (Ellenburger) | XTO Energy Inc. | Shut In · shut in Mar 1, 2020 | 12,158 |
Formation tops
As filed on W-2/G-1. Subsea from 2,809 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rustler | 1,483 | 1,326 |
| San Andres | 4,680 | -1,871 |
| Wolfcamp | 7,510 | -4,701 |
| Devonian | 10,303 | -7,494 |
| Fusselman | 11,191 | -8,382 |
| Ellenburger | 11,995 | -9,186 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,310 | 9,410 | Perforated |
| 10,370 | 10,800 | Perforated |
| 10,850 | 10,976 | Perforated |
| 11,166 | 11,254 | Perforated |
| — | 11,995 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 605 | 17.25 | 500 S |
| 9.625 | 4,982 | 12.25 | 2,770 S |
| 7 | 12,018 | 8.625 | 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 27, 2009 | Nov 20, 2008 | — |
| 00 | Mar 20, 1997 | Feb 19, 1997 | Yes |
| 00 | Mar 6, 1997 | — | — |
| 00 | Jan 12, 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 42-461-03918 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-03918 → 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/46103918, documented in the API reference.