42-391-01713

Final Completion

NORDAN & MORRIS OCONNOR THOMAS

REFUGIO County · District 2 · T-C OIL COMPANY LLC · TOM OCONNOR (5900 SAND)

Permits

Max Depth

5,925 ft

First Permit

1987-08-20

Latest Activity

2010-12-14

Lifespan

23 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

2016-07-29

EWA / Permit operator mismatch

Scheduling: T-C OIL COMPANY LLC ≠ Permit: T - C OIL COMPANY

Resolved via: scheduling → T-C OIL COMPANY LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2016-07

Operator History

Chain of Custody

NORDAN & COMPANY 1993-1998→ T - C OIL COMPANY 2010-2011→ T-C OIL COMPANY, LLC 2012-2012

Lease Production

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

Formation Tops (8) Elevation 49 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
LAGARO	1 ft	+48 ft
LARGARTO (Lagarto)	1 ft	+48 ft
EOCENE	2,500 ft	-2,451 ft
MIOCENE (Miocene (undifferentiated))	2,975 ft	-2,926 ft
CATAHOULA	3,635 ft	-3,586 ft
GRETA	4,390 ft	-4,341 ft
FRIO	5,100 ft	-5,051 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 (2)

Interval	Type
4,974–4,984 ft	Perforated
5,676–5,681 ft	Perforated

Casing (5)

Size	Set Depth	Cement
10.75"	1,206 ft	528 sx
10.75"	1,208 ft	528 sx
7"	5,909 ft	500 sx
7"	5,924 ft	500 sx
5"	5,925 ft	—

Permit History (2)

#706807 Recompletion Final Completion

COPANO GAS UNIT · 5,052 ft

2010-12-14

Spud 2010-11-19

#334777 Recompletion Final Completion

NORDAN & MORRIS-O'CONNOR, THOS. · 5,925 ft

1987-08-20

Applications (2)

#706807 A T - C OIL COMPANY

received 2010-12-09

#334777 A NORDAN & COMPANY

received 1987-08-19

Records & Logs

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

W-2/G-1 2013-01-02

W-2/G-1 2010-12-15 log on file

W-2/G-1 2011-01-27

W-2/G-1 1987-08-31 log on file

W-2/G-1 1987-09-05

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: 40
Max Depth: 5,925 ft
Drill Type: Vertical
County: REFUGIO
District: 2
Operator: T-C OIL COMPANY LLC

Operator

Name: T-C OIL CO, LLC
Location: REFUGIO
P-5 Status: Active (filed 2025-12-03)
Cum Oil (all leases): 13,683,333 bbl
Cum Gas (all leases): 22,912,895 mcf
Activities: CSGD/P, G/PUR, OPRS/G, OPRS/O
Total Permits: 283