WELL · 42-047-31518 · DISTRICT 4
Alexander /400 Ac./ #12
Brooks County · Palo Blanco (FB-S) field · Vertical
Alexander /400 AC./ #12 (API 42-047-31518) is a well in Brooks County operated by Nylo Oil & Gas LLC, completed March 9, 1988.
The RRC has issued 2 drilling permits between 1988 and 1989, permitted to 5,011 ft.
It was permitted by Hunter & Hedrick Production, Inc and has since transferred to Nylo Oil & Gas LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Oakville, Frio, Sejita.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Hunter & Hedrick Production, Inc; the EWA schedule now lists a different operator.
San Antonio, TX · P-5 Y, filed Dec 22, 2025 · (210) 821-6169
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Nylo Oil & Gas LLC |
| Production reports | D.Y. Exploration, Inc.through Jul 1995 |
| Latest permit | Hunter & Hedrick Production, IncMay 18, 1989 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,011
- total depth, ft
- 2
- permits on file
- May 18, 1989
- last permit issued
- Mar 9, 1988
- completed
- 0
- cumulative oil, bbl
- 27.5K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 9, 1988
- Shut in
- —
- Plugged
- —
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 |
|---|---|---|---|---|---|---|
| Alexander 400 Ac. G-4-131140 | Palo Blanco (3950) | Nylo Oil & Gas LLC | 1 | 0 | 27.5K | 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.
- 1Cimarron Engineering Corp.Jan 1993 → Apr 1993
- 2D.Y. Exploration, Inc.May 1993 → Jul 1995
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 359276-99 | Recompletion | Hunter & Hedrick Production, Inc | May 15, 1989 | May 18, 1989 | — | 5,011 |
| 342508-99 | Drill | Hunter & Hedrick Production, Inc | Feb 10, 1988 | Feb 11, 1988 | — | 5,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-131140 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 365 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,941 | 3,946 | Perforated |
| 4,818 | 4,824 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 622 | 12.25 | 240 S |
| 5.5 | 4,996 | 7.875 | 330 S |
| 5.5 | 5,005 | 7.875 | 330 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 | Aug 10, 1989 | Jun 21, 1989 | Yes |
| 00 | Jul 12, 1989 | — | — |
| 00 | Jun 28, 1989 | May 17, 1989 | Yes |
| 00 | Jun 21, 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 42-047-31518 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-047-31518 → 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/04731518, documented in the API reference.