← Wells

42-391-31896

Final Completion

O CONNOR THOMAS -C-

REFUGIO County · District 2 · HILCORP ENERGY COMPANY · TOM OCONNOR (5900 SAND)

Permits

3

Max Depth

8,500 ft

First Permit

1985-11-22

Latest Activity

2024-10-29

Lifespan

39 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1986-01-20

Shut-In

—

Plugged

—

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

QUINTANA PET. CORP. 1993-2000→ 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 →

Formation Tops (8) Elevation 55 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
LARGARTO (Lagarto)1,500 ft-1,445 ft
OAKVILLE 2,750 ft-2,695 ft
CATAHOULA (MIOCENE) (Catahoula)3,300 ft-3,245 ft
ANAHUAC (MIOCENE) (Anahuac)4,100 ft-4,045 ft
FRIO-GRETA (OLIGOCENE) (Frio)4,365 ft-4,310 ft
MIDDLE FRIO (SINTON) (Frio)5,000 ft-4,945 ft
LOWER FRIO (OLIGOCENE) (Frio)5,880 ft-5,825 ft
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
✓ 42-391-01171 TOM O'CONNOR (4150 FT. SD.) UNIT · HILCORP ENERGY COMPANY
0.3 mi
Lagarto 1,500'Oakville 2,750'Catahoula 3,300'Catahoula 3,559'Anahuac 4,100'Frio 4,332'Frio 4,365'Frio 5,000'Frio 5,880'Jackson —
✓ 42-391-31613 TOM O'CONNOR (5800 SAND) FIELD U · QUINTANA PET. CORP.
0.3 mi
SURFACE, SAND & CLAY 1,500'Lagarto 2,750'Oakville 3,300'Catahoula 3,560'Catahoula 4,100'Frio 4,325'Anahuac 4,365'Frio 4,785'Frio 5,400'Frio 6,110'Jackson —
✓ 42-391-01167 O'CONNOR, THOMAS 'C' · QUINTANA PET. CORP.
0.3 mi
Lagarto 1,500'Lagarto 2,750'Oakville 2,750'Oakville 3,300'Catahoula 3,300'Catahoula 3,565'Anahuac 4,100'Catahoula 4,100'Frio 4,329'Frio 4,365'Anahuac 4,365'Frio 4,785' +6 more
✓ 42-391-01515 TOM O'CONNOR "A" · QUINTANA PET. CORP.
0.4 mi
Lagarto 1,500'Oakville 2,750'Catahoula 3,300'Catahoula 3,300'Oakville 3,300'Catahoula 3,586'Anahuac 4,100'Anahuac 4,100'Frio 4,365'Frio 4,365'Frio 4,365'Frio 4,375' +6 more
✓ 42-391-01487 TOM O'CONNOR (5800 SD) FLD. UNIT · QUINTANA PET. CORP.
0.5 mi
Lagarto 1,500'Lagarto 2,750'Oakville 2,750'Catahoula 3,300'Catahoula 3,596'Oakville 4,100'Anahuac 4,100'Frio 4,341'Anahuac 4,365'Frio 4,365'Frio 4,365'Frio 5,000' +5 more
✓ 42-391-01460 THOMAS O'CONNOR 'A' · QUINTANA PET. CORP.
0.6 mi
Lagarto 1,500'Oakville 2,750'Catahoula 3,300'Catahoula 3,300'Catahoula 3,590'Anahuac 4,100'Anahuac 4,100'Frio 4,342'Frio 4,365'Frio 4,365'Frio 4,365'Frio 5,000' +2 more
✓ 42-391-01514 TOM OCONNOR(5800 SAND)FIELD UNIT · QUINTANA PET. CORP.
0.6 mi
Lagarto 1,500'SURFACE SAND CLAY 1,500'Lagarto 2,750'Oakville 2,750'Catahoula 3,300'Oakville 3,300'Catahoula 3,300'Catahoula 4,100'Anahuac 4,100'Greta 4,362'Frio 4,365'Anahuac 4,365' +8 more
✓ 42-391-01467 THOMAS O'CONNOR 'A' · QUINTANA PET. CORP.
0.6 mi
Lagarto 1,500'Oakville 2,750'Lagarto 2,750'Oakville 2,900'Oakville 3,300'Catahoula 3,300'Catahoula 3,600'Catahoula 3,602'Anahuac 4,100'Catahoula 4,100'Anahuac 4,100'Greta 4,300' +13 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 (3)

IntervalType
5,522–5,527 ftPerforated
5,747–5,753 ftPerforated
5,846–5,855 ftPerforated

Casing (2)

SizeSet DepthCement
10.75"1,499 ft690 sx
7"6,102 ft1,240 sx

Permit History (3)

#903197 Recompletion Final Completion

TOM OCONNOR (5800 SD) FLD. UNIT · 8,477 ft

2024-10-29

Spud 2024-10-04

#534914 Recompletion Final Completion

O'CONNOR, THOMAS "C" · 8,477 ft

2003-08-08

Spud 2003-08-14

#291088 Drill Final Completion

O'CONNOR, THOMAS "C" · 8,500 ft

1985-11-22

Applications (3)

#903197 A HILCORP ENERGY COMPANY
received 2024-10-11
#534914 A HILCORP ENERGY COMPANY
received 2003-08-04
#291088 A QUINTANA PET. CORP.
received 1985-11-08

Records & Logs

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

W-2/G-1 2024-11-21
W-2/G-1 2003-08-28 log on file
W-2/G-1 1986-02-25 log on file
W-2/G-1 1986-02-25 log on file
W-2/G-1 1986-04-04
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 28.363195
Lon -97.162790

Well Details

Well Number
Q291
Max Depth
8,500 ft
Drill Type
Vertical
County
REFUGIO
District
2
Operator
HILCORP ENERGY COMPANY
Completed
1986-01-20

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