42-351-30652

Final Completion Horizontal

JONES UNIT A-423

NEWTON County · District 6 · TEXAS OIL AND GAS OPERATING LLC · BROOKELAND (AUSTIN CHALK 8800)

Permits

Max Depth

12,280 ft

First Permit

1996-04-11

Latest Activity

2016-05-31

Lifespan

20 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1996-07-15

Shut-In

—

Plugged

—

EWA / Production operator mismatch

Scheduling: TEXAS OIL AND GAS OPERATING LLC ≠ Production: COPESTONE OPERATING, LLC (reported 2016-08)

EWA / Permit operator mismatch

Scheduling: TEXAS OIL AND GAS OPERATING LLC ≠ Permit: COPESTONE OPERATING, LLC

Resolved via: scheduling → TEXAS OIL AND GAS OPERATING LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1996-07

Last Production

2026-07

Operator History

Chain of Custody

SONAT EXPLORATION COMPANY -TYLER 1996-1998→ SWIFT ENERGY COMPANY 1998-2002→ COPESTONE OPERATING, LLC 2016-2016

Lease Production

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

Formation Tops (9) Elevation 230 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
FRIO - DISPOSAL (Frio)	3,120 ft	-2,890 ft
VICKSBURG - DISPOSAL (Vicksburg)	3,930 ft	-3,700 ft
HET - DISPOSAL	4,010 ft	-3,780 ft
TOP OF WILCOX (Wilcox)	4,937 ft	-4,707 ft
WILCOX - DISPOSAL (Wilcox)	4,937 ft	-4,707 ft
NODOSARIA - DISPOSAL	5,170 ft	-4,940 ft
AUSTIN CHALK - BROOKLAND FIELD ( (Austin Chalk)	11,646 ft	-11,416 ft
TOP AUSTIN CHALK (Austin Chalk)	11,647 ft	-11,417 ft
MIOCENE - DISPOSAL (Miocene (undifferentiated))	—	—

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 (3)

Interval	Type
11,695–14,800 ft	Perforated
11,695–15,570 ft	Perforated
12,094–15,400 ft	Open hole

Casing (2)

Size	Set Depth	Cement
10.75"	2,458 ft	860 sx
7.625"	11,695 ft	910 sx

Permit History (3)

#815926 Recompletion Final Completion

JONES UNIT A-423 · 12,100 ft

2016-05-31

#446899 Drill Final Completion

JONES UNIT A-423 · 12,280 ft

1996-08-22

Spud 1996-05-05

#446899 Drill

JONES UNIT A-423 · 12,233 ft

1996-04-11

Spud 1996-05-05

Applications (3)

#815926 A COPESTONE OPERATING, LLC

received 2016-05-26

#446899 A SONAT EXPLORATION COMPANY -TYLER

received 1996-08-22

#446899 A SONAT EXPLORATION COMPANY -TYLER

received 1996-04-11

Records & Logs

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

W-2/G-1 2017-11-03

W-2/G-1 2001-02-15

W-2/G-1 2001-03-08

W-2/G-1 1996-08-20 log on file

W-2/G-1 1996-10-02

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 NEWTON County.

Well Details

Well Number: 1ST
Max Depth: 12,280 ft
Drill Type: Horizontal
County: NEWTON
District: 6
Operator: TEXAS OIL AND GAS OPERATING LLC
Completed: 1996-07-15

Operator

Name: TEXAS OIL AND GAS OPER, LLC
Location: FRIENDSWOOD
P-5 Status: Delinquent (filed 2025-08-06)
Cum Oil (all leases): 122,675 bbl
Cum Gas (all leases): 25,710 mcf
Activities: OPRS/G, OPRS/O
Total Permits: 7