← Wells

42-391-31702

Final Completion

OCONNOR DENNIS ETAL -L-

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

Permits

3

Max Depth

4,650 ft

First Permit

1984-01-31

Latest Activity

2018-12-07

Lifespan

35 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1984-02-22

Shut-In

—

Plugged

—

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.

Gas
production & DCA →
Oil
production & DCA →

Formation Tops (9) Elevation 54 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
LAGARTO 1 ft+53 ft
MIOCENE (Miocene (undifferentiated))2,114 ft-2,060 ft
EOCENE2,410 ft-2,356 ft
MIOCENE (Miocene (undifferentiated))3,020 ft-2,966 ft
CATAHOULA 3,730 ft-3,676 ft
CATAHOULA 3,735 ft-3,681 ft
GRETA 4,370 ft-4,316 ft
GRETA 4,390 ft-4,336 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 ↗

Offset Well Tops (nearest 8 wells with tops)

What nearby completed wells reported.

Cross-section
✓ 42-391-33296 DENNIS O'CONNOR ET AL -L- · T-C OIL COMPANY, LLC
0.2 mi
Miocene (undifferentiated) 2,400'Catahoula 3,720'Greta 4,390'Jackson —Frio —
✓ 42-391-04014 WILLIAMS, MAUDE, ETAL "A" · QUINTANA PET. CORP.
0.3 mi
Lagarto 1,500'E-264 2,660'Oakville 2,750'Catahoula 3,300'Catahoula 3,690'Anahuac 4,100'Frio 4,365'Frio 4,365'Frio 5,000'Frio 5,800'Jackson —NO CHANGE —
✓ 42-391-31685 WILLIAMS, MAUDE ETAL -A- · QUINTANA PET. CORP.
0.4 mi
RECENT (WATER SANDS) 1'Lagarto 1,400'Oakville 2,800'Oakville 3,300'Catahoula 3,500'Catahoula 3,672'ANAGUAC 4,050'Greta 4,300'Frio 4,399'Jackson —NO CHANGE —
✓ 42-391-31770 WILLIAMS, MAUDE ET AL 'A' · QUINTANA PET. CORP.
0.5 mi
Lagarto 1,500'Oakville 2,750'Catahoula 3,300'Catahoula 3,676'Anahuac 4,100'Frio 4,361'Frio 4,365'Frio 5,000'Frio 5,880'Jackson —
✓ 42-391-31665 O'CONNOR, DENNIS ET AL -L- · T-C OIL COMPANY, LLC
0.6 mi
Lagarto 1'EOCENE 2,240'Miocene (undifferentiated) 2,240'Miocene (undifferentiated) 2,835'CATHOULA 3,600'Catahoula 3,600'Greta 4,385'Lagarto —
✓ 42-391-00330 WILLIAMS, MAUDE ETAL -A- · QUINTANA PET. CORP.
0.6 mi
Lagarto 1,500'Oakville 2,750'Catahoula 3,300'Catahoula 3,300'Anahuac 4,100'Frio 4,365'Frio 5,000'Frio 5,880'NO CHANGE —
✓ 42-391-32037 WILLIAMS, MAUDE ETAL -A- · QUINTANA PET. CORP.
0.6 mi
Lagarto 1,500'Lagarto 1,500'Oakville 2,750'Catahoula 3,300'Catahoula 3,662'Anahuac 4,100'Frio 4,353'Frio 4,365'Frio 5,000'Frio 5,880'Jackson —
✓ 42-391-04013 WILLIAMS, MAUDE ETAL -A- · HILCORP ENERGY COMPANY
0.6 mi
Lagarto 1,500'Oakville 2,750'Catahoula 3,300'Anahuac 4,100'Frio 4,365'Frio 4,365'Frio 5,000'Frio 5,400'

Nearest wells within 10 mi (surface locations). Click wells to select them, then open the cross-section to compare tops side by side (max 6 wells per section, including this one).

Perforations (5)

IntervalType
4,392–4,404 ftPerforated
4,412–4,426 ftPerforated
4,445–4,457 ftPerforated
4,460–4,466 ftPerforated
4,503–4,507 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"1,521 ft700 sx
5.5"4,606 ft880 sx

Permit History (3)

#847542 Recompletion Final Completion

DENNIS O'CONNOR ET AL -L- · 4,650 ft

2018-12-07

Spud 2018-11-16

#612076 Recompletion Final Completion

DENNIS O'CONNOR ET AL -L- · 4,436 ft

2006-01-09

#228945 Drill Final Completion

O'CONNOR, DENNIS ET AL -L- · 4,650 ft

1984-01-31

Applications (3)

#847542 A T-C OIL COMPANY, LLC
received 2018-12-06
#612076 A T - C OIL COMPANY
received 2006-01-09
#228945 A T - C OIL COMPANY
received 1984-01-31

Records & Logs

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

W-2/G-1 2022-12-18
W-2/G-1 2019-01-03
W-2/G-1 2006-01-12 log on file
W-2/G-1 2006-08-10
W-2/G-1 1984-03-09
W-2/G-1 1984-03-09
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.

Google Maps → Explorer Map →
Lat 28.403544
Lon -97.069508

Well Details

Well Number
L 57
Max Depth
4,650 ft
Drill Type
Vertical
County
REFUGIO
District
2
Operator
T-C OIL COMPANY LLC
Completed
1984-02-22

Operator

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