WELL · 42-047-00543 · DISTRICT 4
Alexander 400 Acre #4
Brooks County · Palo Blanco(fb-S Frio 4000) field · Vertical
Alexander 400 Acre #4 (API 42-047-00543) is a well in Brooks County operated by Herschap Bros., completed May 2, 1984.
The RRC has issued one drilling permit, issued May 15, 1984, permitted to 6,038 ft.
It was permitted by Hunt, N. B. and has since transferred to Herschap Bros. on the wellbore schedule.
Completion filings report 3 formation tops, including Frio, Sejita, Yegua.
Its 2 leases have reported 7.19K barrels of oil and 36.3K mcf of gas since January 1993, last reporting in July 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Hunt, N. B.; the EWA schedule now lists a different operator.
Bruni, TX · P-5 Y, filed Jan 5, 2024 · 12 permits on file · (817) 915-0134
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Herschap Bros. |
| Production reports | Messy Oil and Gas, LLCthrough Feb 2025 |
| Latest permit | Hunt, N. B.May 15, 1984 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,038
- total depth, ft
- 1
- permits on file
- May 15, 1984
- last permit issued
- May 2, 1984
- completed
- 7.19K
- cumulative oil, bbl
- 36.3K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 2, 1984
- 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 2 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Alexander 400 Acre O-4-13466 | Palo Blanco(fb-S, Frio 4000) | Nylo Oil & Gas LLC | 1 | 7.19K | 0 | Jun 2007 – Jul 2026 |
| Alexander 400 Acre G-4-116136 | Palo Blanco(fb-S, Frio 4000) | Herschap Bros. | 1 | 0 | 36.3K | Jan 1993 – Jun 2007 |
Oil, barrels lease total
Last 12 months 0 · prior 12 5(-100%)
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
- 3Herschap Bros.Jun 2007 → Oct 2023
- 4Messy Oil and Gas, LLCNov 2023 → Feb 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 238896-99 | Recompletion | Hunt, N. B. | May 14, 1984 | May 15, 1984 | — | 6,038 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-116136 | — | — | — | — |
| — | — O-4-13466 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 356 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,048 | 4,052 | Perforated |
| — | 4,790 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 508 | 15 | 325 S |
| 9.625 | 515 | — | — |
| 4.5 | 4,041 | — | — |
| 2 | 4,820 | — | — |
| 5.5 | 4,945 | — | — |
| 5.5 | 4,995 | 8.625 | 250 S |
| 4.5 | 4,995 | 8.625 | 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. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jun 19, 2008 | Feb 8, 2008 | — |
| 00 | May 16, 2008 | Feb 8, 2008 | — |
| 00 | Mar 11, 2008 | — | — |
| 00 | May 8, 1985 | Apr 24, 1985 | — |
| 00 | May 7, 1985 | — | — |
| 00 | Jan 12, 1984 | — | — |
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 42-047-00543 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-047-00543 → 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/04700543, documented in the API reference.