42-507-32403

Final Completion Horizontal

PORTER FLOYD R.

ZAVALA County · District 1 · TRINITY OPERATING (USG) LLC · PEARSALL (AUSTIN CHALK)

Permits

Max Depth

10,550 ft

First Permit

1991-01-24

Latest Activity

2004-09-08

Lifespan

14 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2004-10-01

Shut-In

—

Plugged

2021-04-30

EWA / Production operator mismatch

Scheduling: TRINITY OPERATING (USG) LLC ≠ Production: TEXAS AMERICAN RESOURCES COMPANY (reported 2009-11)

EWA / Permit operator mismatch

Scheduling: TRINITY OPERATING (USG) LLC ≠ Permit: TEXAS AMERICAN RESOURCES COMPANY

Resolved via: scheduling → TRINITY OPERATING (USG) LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2021-07

Operator History

Chain of Custody

ORYX ENERGY COMPANY 1993-1997→ TEXAS AMERICAN RESOURCES COMPANY 2004-2009

Lease Production

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

Oil

production & DCA →

Formation Tops (7) Elevation 588 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
MIDWAY	2,858 ft	-2,270 ft
SAN MIGUEL	5,343 ft	-4,755 ft
ANACACHO	5,978 ft	-5,390 ft
AUSTIN CHALK	6,238 ft	-5,650 ft
AUSTIN CHALK	6,283 ft	-5,695 ft
LOWER CHALK	6,658 ft	-6,070 ft
BASE CHALK	6,857 ft	-6,269 ft

As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗

Perforations (2)

Interval	Type
6,375–10,122 ft	Perforated
6,375–10,473 ft	Perforated

Casing (2)

Size	Set Depth	Cement
13.375"	812 ft	565 sx
9.625"	6,375 ft	1,200 sx

Permit History (2)

#550645 Recompletion Final Completion

PORTER UNIT · 6,800 ft

2004-09-08

Spud 2004-09-15

#383818 Drill Final Completion

PORTER, FLOYD R. · 10,550 ft

1991-01-24

Spud 1991-02-25

Applications (2)

#550645 A TEXAS AMERICAN RESOURCES COMPANY

received 2004-09-08

#383818 A ORYX ENERGY COMPANY

received 1991-01-24

Records & Logs

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

W-2/G-1 2009-10-28

W-2/G-1 1991-04-24 log on file

W-2/G-1 1991-07-18

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 ZAVALA County.

Well Details

Well Number: 3
Max Depth: 10,550 ft
Drill Type: Horizontal
County: ZAVALA
District: 1
Operator: TRINITY OPERATING (USG) LLC
Completed: 2004-10-01

Operator

Name: TRINITY OPER (USG), LLC
Location: HOUSTON
P-5 Status: Active (filed 2026-01-28)
Cum Oil (all leases): 22,515,031 bbl
Cum Gas (all leases): 284,930,581 mcf
Activities: OPRS/G, OPRS/O
Total Permits: 391