42-391-31799

Final Completion

T-C OIL CO.- O CONNOR

REFUGIO County · District 2 · T-C OIL COMPANY LLC · LAKE PASTURE (H-440 SAND)

Permits

Max Depth

4,600 ft

First Permit

1984-09-28

Latest Activity

2004-03-03

Lifespan

19 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1984-11-21

Shut-In

—

Plugged

2011-11-28

EWA / Permit operator mismatch

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

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 (5) Elevation 59 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
LARGARTO (Lagarto)	1 ft	+58 ft
EOCENE	2,475 ft	-2,416 ft
MIOCENE (Miocene (undifferentiated))	3,030 ft	-2,971 ft
CATAHOULA	3,690 ft	-3,631 ft
GRETA	4,375 ft	-4,316 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 (4)

Interval	Type
4,382–4,390 ft	Perforated
4,392–4,396 ft	Perforated
4,398–4,408 ft	Perforated
4,529–4,537 ft	Perforated

Casing (2)

Size	Set Depth	Cement
9.625"	1,511 ft	700 sx
5.5"	4,613 ft	873 sx

Permit History (2)

#542754 Recompletion Final Completion

O'CONNOR, T-C OIL CO. · 4,490 ft

2004-03-03

Spud 2004-06-08

#253140 Drill Final Completion

T-C OIL CO.-O'CONNOR · 4,600 ft

1984-09-28

Spud 1984-10-06

Applications (2)

#542754 A T - C OIL COMPANY

received 2004-03-02

#253140 A T - C OIL COMPANY

received 1984-09-28

Records & Logs

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

W-2/G-1 2004-09-27 log on file

W-2/G-1 2005-03-10

W-2/G-1 1984-12-14

W-2/G-1 1985-01-05

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: 79
Max Depth: 4,600 ft
Drill Type: Vertical
County: REFUGIO
District: 2
Operator: T-C OIL COMPANY LLC
Completed: 1984-11-21

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: 282