WELL · 42-417-36891 · DISTRICT 7
Nail-125 North #J21B
Shackelford County · Roark (Tannehill) field · Shut IN · Vertical
Nail-125 North #J21B (API 42-417-36891) is a well in Shackelford County operated by M & K Operating LLC, completed April 25, 1989 and listed as shut in on the RRC schedule.
The RRC has issued one drilling permit, issued May 22, 1986, permitted to 1,750 ft.
It was permitted by One Madison Energy, Inc. and has since transferred to M & K Operating LLC on the wellbore schedule.
Completion filings report 6 formation tops, including Frye, Tannehill, Saddle Creek, Bluff Creek.
Its lease has reported 1.48K barrels of oil and 21.7K mcf of gas since January 1993, last reporting in July 2026. The lease carries 5 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by One Madison Energy, Inc.; the EWA schedule now lists a different operator.
Albany, TX · P-5 Y, filed Sep 4, 2025 · 11 permits on file · (325) 668-6618
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | M & K Operating LLC |
| Production reports | B P Operating Companythrough Jul 2003 |
| Latest permit | One Madison Energy, Inc.May 22, 1986 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 1,750
- total depth, ft
- 1
- permits on file
- May 22, 1986
- last permit issued
- Apr 25, 1989
- completed
- 1.48K
- cumulative oil, bbl
- 21.7K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 25, 1989
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Delinquent
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 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Nail-125 "North" O-8-25294 | Roark (Tannehill) | M & K Operating LLC | 5 | 1.48K | 21.7K | 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.
- 1O'Leary's Oil & Gas Inc.Jan 1993 → Feb 2000
- 2B P Operating CompanyMar 2000 → Jul 2003
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 302445-99 | Drill | One Madison Energy, Inc. | Mar 11, 1986 | May 22, 1986 | — | 1,750 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-8-25294 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 1,596 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Frye | 1,160 | 436 |
| Tannehill | 1,282 | 314 |
| Saddle Creek | 1,332 | 264 |
| Bluff Creek | 1,368 | 228 |
| Flippen | 1,394 | 202 |
| Brecken Ridge | 1,600 | -4 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 1,280 | 1,292 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 4.5 | 1,621 | 6.75 | 352 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 15, 1989 | Apr 28, 1989 | Yes |
| 00 | Jun 7, 1989 | — | — |
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 42-417-36891 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-417-36891 → 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/41736891, documented in the API reference.