WELL · 42-497-34379 · DISTRICT 9
Slay #12
Wise County · Morris (Consolidated Congl.) field · Producing · Vertical
Slay #12 (API 42-497-34379) is a well in Wise County operated by Large Operating LLC, completed August 10, 1999 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued June 14, 1999, permitted to 6,000 ft.
It was permitted by JW Energy CO., Ltd and has since transferred to Large Operating LLC on the wellbore schedule.
Completion filings report 2 formation tops, including Caddo, Marble Falls.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by JW Energy Co., Ltd; the EWA schedule now lists a different operator.
Stinnett, TX · P-5 Y, filed Sep 4, 2025 · 2 permits on file · (806) 681-5952
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Large Operating LLC |
| Production reports | Large Operating LLCthrough Apr 2026 |
| Latest permit | JW Energy Co., LtdJun 14, 1999 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,000
- total depth, ft
- 1
- permits on file
- Jun 14, 1999
- last permit issued
- Aug 10, 1999
- completed
- 0
- cumulative oil, bbl
- 130K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 1999 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 10, 1999
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Slay G-13-174956 | Morris (Consolidated Congl.) | Large Operating LLC | 1 | 0 | 130K | Jul 1999 – Jul 2026 |
Gas, mcf lease total
Last 12 months 1,952 · prior 12 1,936(+1%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1JW Energy Co., LtdAug 1999 → Nov 2000
- 2WG Operating, Inc.Dec 2000 → Nov 2010
- 3Milagro Exploration, LLCDec 2010 → Oct 2015
- 4White Oak Operating Company LLCNov 2015 → Oct 2018
- 5Big Mountain Operating LLCNov 2018 → Jul 2020
- 6Everest Energy LLCAug 2020 → May 2021
- 7Large Operating LLCJun 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 485187-99 | Drill | JW Energy Co., Ltd | Jun 14, 1999 | Jun 14, 1999 | Jun 22, 1999 | 6,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-13-174956 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 756 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| CaddoTOP OF CADDO | 5,182 | -4,426 |
| Marble FallsTOP OF MARBLE FALLS | 5,790 | -5,034 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,182 | 5,188 | Perforated |
| 5,246 | 5,250 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 413 | 12.25 | 300 S |
| 5.5 | 5,892 | 7.875 | 120 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 19, 2000 | Nov 1, 1999 | Yes |
| 00 | Dec 8, 1999 | — | — |
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 42-497-34379 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-497-34379 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). 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/49734379, documented in the API reference.