42-163-31887

Final Completion

RIGGS E

FRIO County · District 1 · SOUTH TEXAS OPERATING COMPANY · PEARSALL (AUSTIN CHALK)

Permits

Max Depth

6,500 ft

First Permit

1980-12-08

Latest Activity

2006-04-24

Lifespan

25 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2006-09-01

Shut-In

—

Plugged

2020-08-06

EWA / Permit operator mismatch

Scheduling: SOUTH TEXAS OPERATING COMPANY ≠ Permit: U.S.A. PLUGGING COMPANY

Resolved via: scheduling → SOUTH TEXAS OPERATING COMPANY

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

MINERAL DEVELOPMENT, INC. 1993-1995→ U.S.A. PLUGGING COMPANY 2006-2012→ SOUTH TEXAS OPERATING COMPANY 2012-2018

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Formation Tops (1)

CSV

Formation	Top Depth (MD)
AUSTIN CHALK	5,433 ft

As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. View filings & logs at RRC ↗

Perforations (2)

Interval	Type
5,433–5,760 ft	Perforated
5,433–5,760 ft	Open hole

Casing (3)

Size	Set Depth	Cement
9.625"	355 ft	175 sx
7"	5,433 ft	900 sx
5.5"	5,433 ft	900 sx

Permit History (2)

#617692 Reenter Final Completion

RIGGS "E" · 5,760 ft

2006-04-24

Spud 2006-05-02

#101267 Drill Final Completion

RIGGS "E" · 6,500 ft

1980-12-08

Applications (2)

#617692 A U.S.A. PLUGGING COMPANY

received 2006-04-17

#101267 A CROWN PRODUCTION CO., INC.

received 1980-12-08

Records & Logs

3 completion filings on record · 1 with log images at RRC.

W-2/G-1 2006-10-17 log on file

W-2/G-1 2006-11-27

W-2/G-1 1981-03-06

Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.

No GPS coordinates yet

Coordinates come from the RRC GIS backfill and usually appear within days of permit issuance. Located in FRIO County.

Well Details

Well Number: 2
Max Depth: 6,500 ft
Drill Type: Vertical
County: FRIO
District: 1
Operator: SOUTH TEXAS OPERATING COMPANY
Completed: 2006-09-01

Operator

Name: SOUTH TEXAS OPER CO
Location: SAN ANTONIO
P-5 Status: Active (filed 2026-02-24)
Cum Oil (all leases): 327,774 bbl
Cum Gas (all leases): 2,837,818 mcf
Activities: OPRS/G, OPRS/O
Total Permits: 18