← Wells

42-391-01646

TOM O'CONNOR (5800 SD) FLD. UNIT

REFUGIO County · District 2 · HILCORP ENERGY COMPANY

Permits

1

Max Depth

5,891 ft

First Permit

2017-08-14

Latest Activity

2017-08-14

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

COPANO COMPANY 1993-1998→ T - C OIL COMPANY 2005-2010

Lease Production

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

Oil
production & DCA →

Formation Tops (5) Elevation 46 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
OAKVILLE 2,057 ft-2,011 ft
CATAHOULA 3,650 ft-3,604 ft
GRETA 4,411 ft-4,365 ft
FRIO 5,020 ft-4,974 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
✓ 42-391-01771 M. F. LAMBERT "A" · HILCORP ENERGY COMPANY
0.7 mi
Catahoula 3,613'Frio 4,432'Jackson —NO CHANGE —
✓ 42-391-01328 LAMBERT, M.F. · HILCORP ENERGY COMPANY
1.1 mi
Lagarto 1,500'Oakville 2,750'Catahoula 3,300'Catahoula 3,300'Anahuac 4,100'Jackson 4,265'Frio 4,365'Frio 5,000'Frio 5,000'Frio 5,880'Frio 6,200'
✓ 42-391-33052 M. F. LAMBERT 'A' · HILCORP ENERGY COMPANY
1.2 mi
SURFACE 1,500'Catahoula 2,585'Lagarto 2,750'Oakville 2,900'Oakville 3,300'Catahoula 3,600'Anahuac 4,100'Catahoula 4,100'Greta 4,300'Anahuac 4,365'Frio 4,430'Frio 4,785' +4 more
✓ 42-391-32692 TOM O'CONNOR (5800 SD) FLD. UNIT · HILCORP ENERGY COMPANY
1.3 mi
Lagarto 2,750'Oakville 2,900'Oakville 3,300'Catahoula 3,600'Catahoula 3,640'Catahoula 4,100'Catahoula 4,100'Anahuac 4,100'Greta 4,300'Anahuac 4,365'Anahuac 4,365'Frio 4,457' +9 more
✓ 42-391-01345 TOM O'CONNOR (5800 SD) FLD. UNIT · PENNZOIL PRODUCING CO.
1.4 mi
Catahoula 3,647'Frio 4,370'Jackson —NO CHANGE —
✓ 42-391-01347 LAMBERT, M.F. · HILCORP ENERGY COMPANY
1.6 mi
SURFACE SAND CLAY 1,500'Lagarto 2,750'Oakville 2,900'Oakville 3,300'Catahoula 3,300'Anahuac 4,100'Catahoula 4,100'Frio 4,265'Anahuac 4,365'Frio 4,785'Frio 5,400'Frio 6,150'
✓ 42-391-01349 LAMBERT, M.F. · HILCORP ENERGY COMPANY
1.8 mi
Lagarto 2,750'Oakville 2,900'Oakville 3,300'Catahoula 3,600'Anahuac 4,100'Catahoula 4,100'Anahuac 4,100'Frio 4,265'Greta 4,300'Anahuac 4,365'Frio 4,785'Frio 5,000' +3 more
✓ 42-391-31888 TOM O'CONNOR (5800 SD) FLD UNIT · QUINTANA PET. CORP.
1.8 mi
Lagarto 1,500'Oakville 2,750'Catahoula 3,300'Catahoula 3,656'Anahuac 4,100'Frio 4,365'Frio 4,406'Frio 5,000'Frio 5,880'NO CHANGE —Jackson —

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 (1)

IntervalType
?–5,828 ftPerforated

Casing (2)

SizeSet DepthCement
10.75"1,079 ft600 sx
5.5"5,891 ft600 sx

Permit History (1)

#829558 Recompletion

TOM O'CONNOR (5800 SD) FLD. UNIT · 5,891 ft

2017-08-14

Applications (1)

#829558 A HILCORP ENERGY COMPANY
received 2017-08-04

Records & Logs

2 completion filings on record.

W-2/G-1 2017-08-14
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.

Google Maps → Explorer Map →
Lat 28.314589
Lon -97.210812

Well Details

Well Number
C423
Max Depth
5,891 ft
Drill Type
Vertical
County
REFUGIO
District
2
Operator
HILCORP ENERGY COMPANY

Operator

Location
HOUSTON
P-5 Status
X (filed 2026-03-27)
Cum Oil (all leases)
75,699,281 bbl
Cum Gas (all leases)
1,779,939,645 mcf
Activities
CSGD/G, CSGD/P, G/PUR, GTHS/C, GTHS/G, GTHS/O, OPRS/G, OPRS/O
Total Permits
3,428