TEXAS · WELLS · UPTON COUNTY · MCELROY RANCH CO. LEASE · API 42-461-35306 · DISTRICT 6E
McElroy Ranch Co. #23
Upton County · Wilshire (Consolidated) field · Temp Abandoned · Vertical
Mcelroy Ranch CO. #23 (API 42-461-35306) is a well in Upton County operated by Xto Energy Inc., completed June 6, 2007 and listed as temp abandoned on the RRC schedule, shut in March 1, 2026.
The RRC has issued one drilling permit, issued March 19, 2007, permitted to 11,835 ft.
It was permitted by Encore Operating, L.P. and has since transferred to Xto Energy Inc. on the wellbore schedule.
Completion filings report 4 formation tops, including Woodford, Devonian, Silurian (undifferentiated), Fusselman.
Its lease has reported 12.6K barrels of oil and 465K mcf of gas since June 2007, last reporting volume in February 2026.
Operator of record
Permitted by Encore Operating, L.P.; 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 Feb 2026 |
| Latest permit | Encore Operating, L.P.Mar 19, 2007 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,835
- total depth, ft
- 1
- permits on file
- Mar 19, 2007
- last permit issued
- Jun 6, 2007
- completed
- 12.6K
- cumulative oil, bbl
- 465K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · JUN 2007 THROUGH FEB 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jun 6, 2007
- Shut in
- Mar 1, 2026
- 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.
Wells nearby
Every well with a location on file around this well, in any state, nearest first.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| McElroy Ranch Co. G-9-244442 | Wilshire (Consolidated) | XTO Energy Inc. | 1 | 12.6K | 465K | Jun 2007 – Feb 2026 |
Gas, mcf lease total
Last 12 months 11,253 · prior 12 5,547(+103%)
Wells named McElroy Ranch Co.
XTO Energy Inc.'s other wells filed under this lease name in Upton County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.
Loading the lease's wellsChain of custody
Every operator that reported production on this well's lease, in order.
- 1Encore Operating, L.P.Jun 2007 → Mar 2009
- 2Exxon Mobil CorporationApr 2009 → Dec 2011
- 3XTO Energy Inc.Jan 2012 → Feb 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 635042-99 | Drill | Encore Operating, L.P. | Mar 12, 2007 | Mar 19, 2007 | Mar 31, 2007 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 6, 2007 | McElroy Ranch Co. G-9-244442 | Wilshire (Consolidated) | XTO Energy Inc. | Temp Abandoned · shut in Mar 1, 2026 | 11,835 |
Formation tops
As filed on W-2/G-1. Subsea from 2,842 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Woodford | 10,586 | -7,744 |
| Devonian | 10,757 | -7,915 |
| Silurian (undifferentiated)SILURIAN | 11,564 | -8,722 |
| Fusselman | 11,614 | -8,772 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,012 | 11,110 | Perforated |
| 11,210 | 11,350 | Perforated |
| 11,456 | 11,576 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 468 | 17.5 | 450 S |
| 9.625 | 5,340 | 12.25 | 700 S |
| 4.5 | 11,835 | 8.75 | 2,250 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 | Feb 18, 2009 | Jul 31, 2007 | Yes |
| 00 | Jan 29, 2009 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received May 17, 2010. Density, 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/DENSITY POROSITYSpans Woodford, Devonian, Silurian (undifferentiated), Fusselman | TIFF | 190 to 11,830 | May 17, 2010run Apr 30, 2007 | 6.12 |
"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 42-461-35306 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-35306 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it. The University Lands library has no per-well link: then paste it into its 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/46135306, documented in the API reference.