WELL · 42-507-30475 · DISTRICT 1
Frost National #4
Zavala County · Pearsall (Austin Chalk) field · Vertical
Frost National #4 (API 42-507-30475) is a plugged well in Zavala County, plugged March 2, 2011, last operated by Plano Petroleum Corporation.
The RRC has issued one drilling permit, issued August 11, 1994, permitted to 5,450 ft.
Completion filings report 5 formation tops, including Carrizo, Wilcox, Olmos, San Miguel.
Operator of record
McKinney, TX · P-5 Y, filed Jan 8, 2016 · 10 permits on file · (214) 704-5137
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Plano Petroleum Corporation |
| Production reports | Plano Petroleum Corporationthrough Sep 2004 |
| Latest permit | Plano Petroleum CorporationAug 11, 1994 |
- 5,450
- total depth, ft
- 1
- permits on file
- Aug 11, 1994
- last permit issued
- Apr 20, 1977
- completed
- 0
- cumulative oil, bbl
- 95.7K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2013
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 20, 1977
- Shut in
- —
- Plugged
- Mar 2, 2011
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 3 leases this well is completed on; they carry 4 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Frost National Bank G-1-150992 | Leta (San Miguel) | Bhec Corporation | 1 | 0 | 95.7K | Aug 1994 – Jul 2013 |
| Frost National Bank O-1-5193 | Pearsall (Austin Chalk) | Gould Energy Co. | 2 | 0 | 0 | Jan 1993 – Aug 2003 |
| Frost National O-1-13380 | Pearsall (Austin Chalk) | Plano Petroleum Corporation | 1 | 0 | 0 | Jan 1993 – Dec 1994 |
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.
- 1Plano Petroleum CorporationSep 1994 → Sep 2004
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 426368-99 | Recompletion | Plano Petroleum Corporation | Aug 10, 1994 | Aug 11, 1994 | Mar 13, 1994 | 5,450 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-1-150992 | — | — | — | — |
| — | — O-1-5193 | — | — | — | — |
| — | — O-1-13380 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 650 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Carrizo | 1,495 | -845 |
| WilcoxBASE WILCOX | 3,055 | -2,405 |
| OlmosOLMOS A | 4,529 | -3,879 |
| San Miguel | 4,950 | -4,300 |
| Austin Chalk | 6,145 | -5,495 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,265 | 5,275 | Perforated |
| 6,108 | 6,482 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 344 | 12.25 | 265 S |
| — | 3,017 | — | — |
| 4.5 | 6,989 | 7.875 | 800 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 | Feb 24, 1995 | Sep 16, 1994 | Yes |
| 00 | Sep 28, 1994 | — | — |
| 00 | Feb 13, 1992 | Jul 5, 1977 | — |
| 00 | Jan 12, 1984 | Jul 5, 1977 | — |
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 42-507-30475 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-507-30475 → 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/50730475, documented in the API reference.