WELL · 42-493-32290 · DISTRICT 1

Mattke O. #1

Plugged

Wilson County · LA Vernia (Austin Chalk) field  · Vertical

Mattke O. #1 (API 42-493-32290) is a plugged well in Wilson County, plugged July 27, 1998, last operated by Seguro Well Service Inc..

The RRC has issued one drilling permit (amended once), issued May 23, 1991, permitted to 2,990 ft.

It was permitted by Rollert CO., Inc., The and has since transferred to Seguro Well Service Inc. on the wellbore schedule.

Completion filings report 4 formation tops, including Navarro, Taylor, Pecan Gap, Austin Chalk.

Its lease has reported 223 barrels of oil and 8 mcf of gas since January 1993, last reporting in September 1998.

Operator of record

Seguro Well Service Inc.

Permitted by Rollert Co., Inc., The; the EWA schedule now lists a different operator.

Gonzales, TX · P-5 Y, filed Jul 4, 2026 · 1 permits on file · (830) 857-4042

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleSeguro Well Service Inc.
Production reportsCannan, Morristhrough May 1994
Latest permitRollert Co., Inc., TheMay 23, 1991

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

2,990
total depth, ft
2
permits on file
May 23, 1991
last permit issued
Jun 27, 1991
completed
223
cumulative oil, bbl
8
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Sep 1998

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Jun 27, 1991
Shut in
—
Plugged
Jul 27, 1998

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 →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Mattke, O. O-1-13121LA Vernia (Austin Chalk)Seguro Well Service, Inc.12238Jan 1993 – Sep 1998

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.

  1. 1Cannan, MorrisJan 1993 → May 1994

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
388230-98DrillRollert Co., Inc., TheJul 5, 1991May 23, 1991—2,990
388230-99DrillRollert Co., Inc., TheMay 23, 1991May 23, 1991Jun 2, 19912,990

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-1-13121————

Formation tops

As filed on W-2/G-1. Subsea from 450 ft elevation.Download CSV →

FormationMD ftSubsea
Navarro1,760-1,310
Taylor2,110-1,660
Pecan Gap2,580-2,130
Austin Chalk2,870-2,420

Perforations

Perforated and open-hole intervals.

FromToType
2,8732,874Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
5.52,9457.875405 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
00Jul 22, 1991Jun 12, 1991Yes
00Jul 19, 1991——

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/49332290, documented in the API reference.