42-391-31248

Final Completion

OCONNOR THOMAS C

REFUGIO County · District 2 · QUINTANA PET. CORP. · TOM OCONNOR (6600)

Permits

3

Max Depth

8,500 ft

First Permit

1978-04-24

Latest Activity

2024-03-05

Lifespan

46 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1985-02-15

Shut-In

Plugged

!

EWA / Production operator mismatch

Scheduling: QUINTANA PET. CORP. ≠ Production: HILCORP ENERGY COMPANY (reported 2026-04)

!

EWA / Permit operator mismatch

Scheduling: QUINTANA PET. CORP. ≠ Permit: HILCORP ENERGY COMPANY

Resolved via: productionHILCORP ENERGY COMPANY

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

1993-01

Last Production

2026-07

Lease Production

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

Formation Tops (11) Elevation 59 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
LARGARTO (Lagarto)1,500 ft-1,441 ft
LARGARTO (Lagarto)2,750 ft-2,691 ft
OAKVILLE 2,750 ft-2,691 ft
CATAHOULA 3,300 ft-3,241 ft
CATAHOULA (MIOCENE) (Catahoula)3,300 ft-3,241 ft
ANAHUAC (MIOCENE) (Anahuac)4,100 ft-4,041 ft
FRIO 4,362 ft-4,303 ft
FRIO-GRETA (OLIGOCENE) (Frio)4,365 ft-4,306 ft
MIDDLE FRIO (SINTO) (Frio)5,000 ft-4,941 ft
MIDDLE FRIO (SINTON) (Frio)5,000 ft-4,941 ft
LOWER FRIO (OLIGOCENE) (Frio)5,880 ft-5,821 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 ↗

Offset Well Tops (nearest 8 wells with tops)

What nearby completed wells reported.

Cross-section
42-391-31860 TOM O'CONNOR (5800'SAND)FIELD UT · QUINTANA PET. CORP.
0.1 mi
Lagarto 1,500'Lagarto 2,750'Oakville 2,750'Catahoula 3,300'Catahoula 3,300'Anahuac 4,100'Frio 4,365'Frio 4,365'Frio 5,000'Frio 5,880'Frio 5,880'NO CHANGE
42-391-01132 THOMAS O'CONNOR -C- · QUINTANA PET. CORP.
0.1 mi
Lagarto 1,500'Oakville 2,750'Catahoula 3,300'Catahoula 3,563'Anahuac 4,100'Anahuac 4,100'Frio 4,322'Frio 4,365'Frio 4,365'Frio 5,000'Frio 5,880'Jackson
42-391-32518 HEARD, CLEMENT · HILCORP ENERGY COMPANY
0.2 mi
Lagarto 2,750'Oakville 3,300'Catahoula 3,560'Catahoula 3,563'Oakville 4,100'Frio 4,316'Anahuac 4,365'Anahuac 4,365'ANANHUAC 4,365'Frio 4,785'Frio 4,785'Frio 5,400' +4 more
42-391-31609 TOM O'CONNOR (5800'SD)FIELD UNIT · QUINTANA PET. CORP.
0.2 mi
Lagarto 1,500'Oakville 2,750'Catahoula 3,300'Catahoula 3,609'Anahuac 4,100'Frio 4,365'Frio 5,000'Frio 5,068'Frio 5,880'NO CHANGE
42-391-32533 TOM O'CONNOR (4150 FT. SD.) UNIT · HILCORP ENERGY COMPANY
0.2 mi
Lagarto 2,750'Oakville 3,300'Catahoula 3,566'Catahoula 4,100'Catahoula 4,100'Greta 4,300'Frio 4,318'Anahuac 4,365'Frio 4,785'Frio 5,000'Frio 5,400'Frio 5,800' +2 more
42-391-31839 TOM O'CONNOR(5800SAND)FIELD UNIT · QUINTANA PET. CORP.
0.2 mi
Lagarto 1,500'SURFACE SAND CLAY 1,500'Lagarto 2,750'Oakville 2,750'Oakville 3,300'Catahoula 3,300'Catahoula 3,543'Catahoula 4,100'Anahuac 4,100'Frio 4,358'ANAHAUC 4,365'ANAHAUA 4,365' +9 more
42-391-33211 CLEMENT HEARD 42 · HILCORP ENERGY COMPANY
0.3 mi
Catahoula 3,544'Frio 4,320'Jackson
42-391-00842 HEARD, CLEMENT · HILCORP ENERGY COMPANY
0.3 mi
Lagarto 1,500'Oakville 2,750'Catahoula 3,300'Catahoula 3,589'Anahuac 4,100'Frio 4,354'Frio 4,365'Frio 5,000'Frio 5,880'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 (7)

IntervalType
5,458–5,464 ftPerforated
5,466–5,474 ftPerforated
5,480–5,487 ftPerforated
5,716–5,724 ftPerforated
5,828–5,836 ftPerforated
5,912–5,916 ftPerforated
6,606–6,612 ftPerforated

Casing (4)

SizeSet DepthCement
9.625"1,498 ft890 sx
1.5"5,884 ft
1.5"6,559 ft
5.5"6,957 ft1,150 sx

Permit History (3)

Applications (3)

#897846 A HILCORP ENERGY COMPANY
received 2024-03-01
#549312 A HILCORP ENERGY COMPANY
received 2004-08-09
#23395 A QUINTANA PET. CORP.
received 1978-04-24

Records & Logs

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

W-2/G-1 2024-06-28
W-2/G-1 2023-11-09
W-2/G-1 2004-10-08 log on file
W-2/G-1 2004-10-28
W-2/G-1 1985-05-17
W-2/G-1 1978-08-02

+1 more 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.

Lat 28.372972
Lon -97.155010

Well Details

Well Number
Q279
Max Depth
8,500 ft
Drill Type
Vertical
County
REFUGIO
District
2
Completed
1985-02-15

Operator

Location
REFUGIO
P-5 Status
Inactive (filed 2000-08-16)
Cum Oil (all leases)
27,323,168 bbl
Cum Gas (all leases)
96,000,536 mcf
Total Permits
1,589