WELL · 42-461-30243 · DISTRICT 8
McElroy Ranch Co. G #12
Upton County · McElroy North (Silurian) field · Vertical
Mcelroy Ranch CO. G #12 (API 42-461-30243) is a plugged well in Upton County, plugged March 29, 2017, last operated by Diamondback E&P LLC.
The RRC has issued one drilling permit, issued April 27, 1983, permitted to 12,080 ft.
It was permitted by Gulf Oil Corp. and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report one formation top, including Red Bed.
Its lease has reported 286K barrels of oil and 806K mcf of gas since January 1993, last reporting in July 2026. The lease carries 6 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Gulf Oil Corp.; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 4, 2026
- Permits on file
- 5,237
- Phone
- (432) 221-7400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Diamondback E&P LLC |
| Production reports | Diamondback E&P LLCthrough Apr 2026 |
| Latest permit | Gulf Oil Corp.Apr 27, 1983 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,080
- total depth, ft
- 1
- permits on file
- Apr 27, 1983
- last permit issued
- Mar 28, 1990
- completed
- 286K
- cumulative oil, bbl
- 806K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 28, 1990
- Shut in
- —
- Plugged
- Mar 29, 2017
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 6 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| McElroy Ranch Co. "G" O-10-23086 | McElroy, North (Silurian) | Diamondback E&P LLC | 6 | 286K | 806K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 3,975 · prior 12 4,841(-18%)
Gas, mcf lease total
Last 12 months 4,787 · prior 12 5,430(-12%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Pennzoil Petroleum CompanyJul 1993 → Jan 1995
- 2Pennzoil Exploration & Prod. Co.Feb 1995 → Sep 1995
- 3Umc Petroleum CorporationOct 1995 → Jul 1998
- 4Ocean Energy, Inc.Aug 1998 → Aug 2003
- 5Devon Louisiana CorporationSep 2003 → Dec 2005
- 6Devon Energy Production Co, L.P.Jan 2006 → Jul 2016
- 7FDL Operating, LLCAug 2016 → Jun 2019
- 8Firebird Energy LLCJul 2019 → Nov 2022
- 9Diamondback E&P LLCDec 2022 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 192774-99 | Recompletion | Gulf Oil Corp. | Apr 27, 1983 | Apr 27, 1983 | — | 12,080 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-23086 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,707 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Red Bed | 240 | 2,467 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,012 | 11,015 | Perforated |
| 11,012 | 11,080 | Perforated |
| 11,013 | 11,122 | Perforated |
| 11,080 | 11,019 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 415 | 17.5 | 300 S |
| 13.375 | 415 | — | 300 S |
| 9.625 | 4,200 | 12.25 | 1,200 S |
| 9.625 | 4,200 | — | 1,200 S |
| 2.375 | 10,540 | — | — |
| 7 | 12,075 | 8.75 | 1,100 S |
| 7 | 12,075 | — | 1,100 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 | Jun 26, 1990 | May 16, 1990 | — |
| 00 | May 18, 1984 | Aug 2, 1983 | — |
| 00 | Jan 12, 1984 | Aug 2, 1983 | — |
| 00 | Jan 12, 1984 | Apr 8, 1974 | — |
| 00 | Jan 12, 1984 | Mar 27, 1974 | — |
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 42-461-30243 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-30243 → 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/46130243, documented in the API reference.