42-391-00914

Final Completion

OBRIEN J. J. -B-

REFUGIO County · District 2 · GRETA OPERATING COMPANY LLC · GRETA (4400)

Permits

Max Depth

4,398 ft

First Permit

1990-01-25

Latest Activity

1991-01-28

Lifespan

1 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

EWA / Permit operator mismatch

Scheduling: GRETA OPERATING COMPANY LLC ≠ Permit: CHILTON ENERGY

Resolved via: production → GRETA OPERATING COMPANY LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

CHILTON ENERGY 1993-2001→ ACOCK ENGINEERING & ASSOC., INC. 2001-2002→ ACOCK/ANAQUA OPERATING CO., LC 2002-2004→ ACOCK/ANAQUA OPERATING CO., LP 2004-2006→ GRETA OPERATING COMPANY LLC 2024-2026

Lease Production

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

Formation Tops (3) Elevation 100 ft

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
GRETA (OAKVILLE) (Greta)	2,800 ft	-2,700 ft
GRETA (CATAHOULA) (Greta)	3,400 ft	-3,300 ft
GRETA (4400) (Greta)	4,330 ft	-4,230 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 (3)

Interval	Type
2,443–2,448 ft	Perforated
3,122–3,134 ft	Perforated
?–4,398 ft	Perforated

Casing (2)

Size	Set Depth	Cement
10.75"	1,280 ft	550 sx
7"	4,376 ft	650 sx

Permit History (2)

#382502 Recompletion Final Completion

O'BRIEN, J.J. "B" · 4,398 ft

1991-01-28

Spud 1990-12-05

#368935 Recompletion Final Completion

O'BRIEN, J. J. "B" · 4,398 ft

1990-01-25

Applications (2)

#382502 A CHILTON ENERGY

received 1990-12-18

#368935 A CHILTON ENERGY

received 1990-01-22

Records & Logs

5 completion filings on record · 2 with log images at RRC.

W-2/G-1 1990-12-21 log on file

W-2/G-1 1991-04-25

W-2/G-1 1990-01-22 log on file

W-2/G-1 1990-02-13

W-2/G-1 1984-01-12

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 REFUGIO County.

Well Details

Well Number: 2
Max Depth: 4,398 ft
Drill Type: Vertical
County: REFUGIO
District: 2
Operator: GRETA OPERATING COMPANY LLC

Operator

Name: GRETA OPER CO LLC
Location: REFUGIO
P-5 Status: Active (filed 2025-08-26)
Cum Oil (all leases): 198,312 bbl
Cum Gas (all leases): 507,958 mcf
Activities: OPRS/G, OPRS/O
Total Permits: 3