42-391-00338

Final Completion

OCONNOR DENNIS ET AL -L-

REFUGIO County · District 2 · T - C OIL COMPANY · LAKE PASTURE (M-348)

Permits

Max Depth

4,649 ft

First Permit

1979-10-10

Latest Activity

2005-05-04

Lifespan

26 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1979-10-21

Shut-In

—

Plugged

2021-12-15

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 (7) Elevation 53 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
LAGARTO	1 ft	+52 ft
EOCENE	2,250 ft	-2,197 ft
MIOCENE (Miocene (undifferentiated))	2,252 ft	-2,199 ft
MIOCENE (Miocene (undifferentiated))	3,000 ft	-2,947 ft
CATAHOULA	3,700 ft	-3,647 ft
GRETA	4,400 ft	-4,347 ft
GRETA	4,403 ft	-4,350 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 (9)

Interval	Type
2,796–2,802 ft	Perforated
3,513–3,515 ft	Perforated
4,406–4,408 ft	Perforated
4,411–4,415 ft	Perforated
4,423–4,427 ft	Perforated
4,431–4,433 ft	Perforated
4,468–4,478 ft	Perforated
4,500–4,504 ft	Perforated
?–4,464 ft	Perforated

Casing (4)

Size	Set Depth	Cement
8.625"	1,511 ft	591 sx
2.375"	2,792 ft	—
2.375"	3,482 ft	—
4.5"	4,644 ft	645 sx

Permit History (4)

#600163 Recompletion Final Completion

O'CONNOR, DENNIS ET AL -L- · 4,490 ft

2005-05-04

Spud 2005-04-25

#515488 Recompletion Final Completion

DENNIS O'CONNOR ET AL -L- · 4,441 ft

2001-11-20

Spud 2001-11-26

#219489 Recompletion Final Completion

O'CONNOR, DENNIS ET AL -L- · 4,649 ft

1983-09-14

#60171 Recompletion Final Completion

O'CONNOR, DENNIS, ET AL "L" · 4,649 ft

1979-10-10

Applications (4)

#600163 A T - C OIL COMPANY

received 2005-05-04

#515488 A T - C OIL COMPANY

received 2001-11-20

#219489 A T - C OIL COMPANY

received 1983-08-24

#60171 A T - C OIL COMPANY

received 1979-10-10

Records & Logs

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

W-2/G-1 2005-05-12

W-2/G-1 2005-05-20

W-2/G-1 2001-12-18 log on file

W-2/G-1 2002-04-30

W-2/G-1 1983-10-19

+3 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: L 11
Max Depth: 4,649 ft
Drill Type: Vertical
County: REFUGIO
District: 2
Operator: T - C OIL COMPANY
Completed: 1979-10-21

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