42-391-04009

Final Completion

O CONNOR DENNIS ET AL N

REFUGIO County · District 2 · T - C OIL COMPANY · OCONNOR-MCFADDIN

Permits

Max Depth

4,419 ft

First Permit

1985-10-25

Latest Activity

2002-09-11

Lifespan

17 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1985-10-28

Shut-In

—

Plugged

—

EWA / Production operator mismatch

Scheduling: T - C OIL COMPANY ≠ Production: T-C OIL COMPANY, LLC (reported 2026-04)

Resolved via: production → T-C OIL COMPANY, LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

T - C OIL COMPANY 1993-2011→ T-C OIL COMPANY, LLC 2012-2026

Lease Production

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

Formation Tops (8) Elevation 70 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
LAGARTO	1 ft	+69 ft
EOCENE	2,135 ft	-2,065 ft
MIOCENE (Miocene (undifferentiated))	2,920 ft	-2,850 ft
MIOCENE (Miocene (undifferentiated))	3,185 ft	-3,115 ft
CATAHOULA	3,745 ft	-3,675 ft
GRETA	4,375 ft	-4,305 ft
GRETA	4,378 ft	-4,308 ft
LAGARTO	—	—

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
2,957–2,962 ft	Perforated
3,128–3,132 ft	Perforated
?–4,394 ft	Perforated

Casing (2)

Size	Set Depth	Cement
9.625"	1,363 ft	450 sx
5.5"	4,417 ft	1,090 sx

Permit History (2)

#523584 Recompletion Final Completion

O'CONNOR, DENNIS ET AL -N- · 3,023 ft

2002-09-11

Spud 2002-09-03

#288475 Recompletion Final Completion

O'CONNOR, DENNIS ET AL -N- · 4,419 ft

1985-10-25

Applications (2)

#523584 A T - C OIL COMPANY

received 2002-09-11

#288475 A T - C OIL COMPANY

received 1985-10-25

Records & Logs

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

W-2/G-1 2019-01-21

W-2/G-1 2007-04-10

W-2/G-1 2002-09-16

W-2/G-1 2002-09-16 log on file

W-2/G-1 2002-10-04

W-2/G-1 1985-11-07 log on file

+2 more filings

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: N 9
Max Depth: 4,419 ft
Drill Type: Vertical
County: REFUGIO
District: 2
Operator: T - C OIL COMPANY
Completed: 1985-10-28

Operator

Name: T - C OIL CO
Location: REFUGIO
P-5 Status: Inactive (filed 2011-11-07)
Cum Oil (all leases): 15,292,994 bbl
Cum Gas (all leases): 112,873,669 mcf
Total Permits: 1,009