WELL · 42-507-30419 · DISTRICT 1

Frost National Bank #1

N

Zavala County  · Vertical

Frost National Bank #1 (API 42-507-30419) is a permitted well in Zavala County filed by Chaparrosa Oil Company; no completion report is on file yet.

The RRC has issued one drilling permit, issued March 14, 1978, permitted to 6,700 ft.

Operator of record

Chaparrosa Oil Company

San Antonio, TX · P-5 Y, filed Dec 13, 1985 · 33 permits on file

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedulenone
Production reportsnone
Latest permitChaparrosa Oil CompanyMar 14, 1978
6,700
total depth, ft
1
permits on file
Mar 14, 1978
last permit issued
—
completed
0
cumulative oil, bbl
0
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Aug 2003

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
—
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; they carry 2 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Frost National Bank O-1-5193Pearsall (Austin Chalk)Gould Energy Co.200Jan 1993 – Aug 2003

No volumes reported on these leases in the last three years.

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
20056-99RecompletionChaparrosa Oil CompanyMar 14, 1978Mar 14, 1978Apr 5, 19786,700

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-1-5193————

Perforations

Perforated and open-hole intervals.

FromToType
6,1206,482Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62529112.25262 S
—2,890——
4.56,4827.8751,250 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 →

SuffixFiledW-2 / G-1 dateLogs referenced
00Jan 12, 1984Feb 4, 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.

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/50730419, documented in the API reference.