← Wells

42-391-01444

Final Completion

TOM OCONNOR (5800 SD) FLD. UNIT

REFUGIO County · District 2 · HILCORP ENERGY COMPANY · TOM OCONNOR (5800)

Permits

6

Max Depth

5,840 ft

First Permit

2002-11-12

Latest Activity

2023-06-07

Lifespan

21 yrs

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

PENNZOIL EXPLORATION & PROD. CO. 1993-1999→ QUINTANA PET. CORP. 1993-2000→ PENNZENERGY EXP. & PROD., L.L.C. 1999-2000→ DEVON ENERGY PRODUCTION CO, L.P. 2000-2002→ HILCORP ENERGY COMPANY 2000-2026

Lease Production

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

Oil
production & DCA →
Oil
production & DCA →
Oil
production & DCA →
Oil
production & DCA →
Oil
production & DCA →

Formation Tops (10) Elevation 51 ft

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
LARGARTO (Lagarto)2,750 ft-2,699 ft
CATAHOULA 3,618 ft-3,567 ft
OAKVILLE 4,100 ft-4,049 ft
ANAHUAC 4,365 ft-4,314 ft
4400 SAND4,374 ft-4,323 ft
FRIO 4,374 ft-4,323 ft
GRETA 5,120 ft-5,069 ft
FRIO 5,840 ft-5,789 ft
JACKSON/YEGUA (Jackson)——
NO CHANGE——

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
✓ 42-391-01388 M. F. LAMBERT · HILCORP ENERGY COMPANY
0.1 mi
Catahoula 3,627'Frio 4,375'TOM O'CONNOR (5200, EAST) 5,159'TOM O'CONNOR (5900 SAND) 5,858'Jackson —
✓ 42-391-01394 TOM O'CONNOR (5800 SD) FLD. UNIT · HILCORP ENERGY COMPANY
0.2 mi
Lagarto 2,750'Oakville 3,300'Catahoula 3,624'Catahoula 4,100'Anahuac 4,365'Frio 4,367'Frio 4,785'Frio 5,400'Frio 5,845'Jackson —
✓ 42-391-01433 TOM O'CONNOR (5800 SD) FLD. UNIT · HILCORP ENERGY COMPANY
0.2 mi
Lagarto 2,750'Catahoula 3,627'Oakville 4,100'Anahuac 4,365'Frio 4,400'Frio 5,915'Jackson —NO CHANGE —
✓ 42-391-33297 LAMBERT, M.F. · HILCORP ENERGY COMPANY
0.3 mi
Catahoula 3,300'Frio —Jackson —
✓ 42-391-33298 LAMBERT, M.F. · HILCORP ENERGY COMPANY
0.3 mi
Catahoula 3,300'Frio 4,365'Jackson —
✓ 42-391-32794 TOM O'CONNOR (5800 SD) FLD. UNIT · HILCORP ENERGY COMPANY
0.3 mi
Lagarto 2,750'Oakville 3,300'Catahoula 3,614'Catahoula 4,100'Oakville 4,100'Anahuac 4,365'ANANHUAC 4,365'Frio 4,389'Frio 4,785'Frio 5,400'Frio 8,220'Frio 8,220' +4 more
✓ 42-391-01446 M. F. LAMBERT · PENNZOIL PRODUCING CO.
0.3 mi
Catahoula 3,609'Frio 4,362'Greta 5,068'5675' 5,642'5800' 5,807'5900' 5,886'NO CHANGE —
✓ 42-391-01449 TOM O'CONNOR (5800 SD) FLD. UNIT · QUINTANA PET. CORP.
0.3 mi
Lagarto 1,500'Lagarto 2,750'Oakville 2,750'Catahoula 3,300'Oakville 3,300'Anahuac 3,300'Anahuac 4,100'Frio 4,365'Frio 4,365'Anahuac 4,365'4600 4,498'Frio 4,785' +5 more

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 (6)

IntervalType
4,371–4,387 ftPerforated
5,219–5,225 ftPerforated
5,538–5,546 ftPerforated
5,591–5,600 ftPerforated
5,743–5,747 ftPerforated
5,750–5,754 ftPerforated

Casing (2)

SizeSet DepthCement
10.75"1,030 ft460 sx
7"5,840 ft500 sx

Permit History (6)

#891096 Recompletion Final Completion

LAMBERT, M.F. · 5,840 ft

2023-06-07

#700529 Recompletion Final Completion

TOM O'CONNOR (5800 SD) FLD. UNIT · 5,840 ft

2010-08-19

Spud 2010-10-28

#619425 Recompletion Final Completion

LAMBERT, M. F. · 5,840 ft

2006-05-31

Spud 2008-01-28

#619425 Recompletion

LAMBERT, M. F. · 5,840 ft

2006-05-31

#603125 Recompletion Final Completion

LAMBERT, M. F. · 5,840 ft

2005-07-08

Spud 2005-11-30

#525199 Recompletion Final Completion

LAMBERT, M. F. · 5,840 ft

2002-11-12

Spud 2002-11-05

Applications (6)

#891096 A HILCORP ENERGY COMPANY
received 2023-06-02
#700529 A HILCORP ENERGY COMPANY
received 2010-08-11
#619425 A HILCORP ENERGY COMPANY
received 2008-01-23
#619425 A HILCORP ENERGY COMPANY
received 2006-05-17
#603125 A HILCORP ENERGY COMPANY
received 2005-07-07
#525199 A HILCORP ENERGY COMPANY
received 2002-11-04

Records & Logs

10 completion filings on record · 3 with log images at RRC.

W-2/G-1 2023-08-22
W-2/G-1 2019-09-13
W-2/G-1 2010-12-07
W-2/G-1 2008-02-13 log on file
W-2/G-1 2008-03-17
W-2/G-1 2006-02-01 log on file

+4 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.

Google Maps → Explorer Map →
Lat 28.336747
Lon -97.174914

Well Details

Well Number
103
Max Depth
5,840 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
3,435