42-391-31613

Final Completion

O CONNOR THOMAS -C-

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

Permits

3

Max Depth

7,000 ft

First Permit

1982-12-31

Latest Activity

2021-10-07

Lifespan

39 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1983-04-12

Shut-In

Plugged

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

H-1 Injection Active UIC #000109451 permitted 2021-11-19

Permitted Volume

15,000 bbl/d

Max Pressure

2,800 psi

Injection Interval

5,600–6,120 ft

Injected (12mo)

1,000,014 bbl

Monthly injected volume (bbl, from H-10 filings through 2025-09-01)

Seismicity: no M2+ earthquakes recorded within 10 km in the last 24 months · TexNet catalog

Lease Production

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

Formation Tops (11) Elevation 54 ft

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SURFACE, SAND & CLAY1,500 ft-1,446 ft
LARGARTO (Lagarto)2,750 ft-2,696 ft
OAKVILLE 3,300 ft-3,246 ft
CATAHOULA 3,560 ft-3,506 ft
CATAHOULA (MIOCENE) (Catahoula)4,100 ft-4,046 ft
FRIO 4,325 ft-4,271 ft
ANAHUAC (MIOCENE) (Anahuac)4,365 ft-4,311 ft
FRIO-GRETA (Frio)4,785 ft-4,731 ft
MIDDLE FRIO (SINTON) (Frio)5,400 ft-5,346 ft
LOWER FRIO (OLIGOCENE) (Frio)6,110 ft-6,056 ft
JACKSON/YEGUA (Jackson)

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
0.0 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
42-391-01167 O'CONNOR, THOMAS 'C' · QUINTANA PET. CORP.
0.1 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'Anahuac 4,365'Frio 4,365'Frio 4,785' +6 more
42-391-31896 TOM OCONNOR (5800 SD) FLD. UNIT · QUINTANA PET. CORP.
0.3 mi
Lagarto 1,500'Oakville 2,750'Catahoula 3,300'Anahuac 4,100'Frio 4,365'Frio 5,000'Frio 5,880'NO CHANGE
42-391-01147 THOMAS O'CONNOR 'C' · QUINTANA PET. CORP.
0.4 mi
Lagarto 1,500'Oakville 2,750'Lagarto 2,750'Oakville 3,300'Catahoula 3,300'Catahoula 3,538'Anahuac 4,100'Catahoula 4,100'Frio 4,321'Frio 4,365'Anahuac 4,365'Frio 4,785' +5 more
42-391-01132 THOMAS O'CONNOR -C- · QUINTANA PET. CORP.
0.4 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
42-391-31839 TOM O'CONNOR(5800SAND)FIELD UNIT · QUINTANA PET. CORP.
0.5 mi
Lagarto 1,500'SURFACE SAND CLAY 1,500'Lagarto 2,750'Oakville 2,750'Catahoula 3,300'Oakville 3,300'Catahoula 3,543'Anahuac 4,100'Catahoula 4,100'Frio 4,358'ANAHAUA 4,365'ANAHAUC 4,365' +9 more
42-391-31860 TOM O'CONNOR (5800'SAND)FIELD UT · QUINTANA PET. CORP.
0.5 mi
Lagarto 1,500'Oakville 2,750'Lagarto 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
42-391-01158 THOMAS O'CONNOR 'C' · HILCORP ENERGY COMPANY
0.5 mi
Oakville 2,900'Catahoula 3,548'Catahoula 3,600'Anahuac 4,100'Greta 4,300'Frio 4,330'Frio 5,000'Frio 5,800'Jackson 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 (4)

IntervalType
4,896–4,904 ftPerforated
5,693–5,733 ftPerforated
5,727–5,733 ftPerforated
5,824–5,832 ftPerforated

Casing (4)

SizeSet DepthCement
10.75"1,489 ft745 sx
2.375"4,840 ft
2.375"5,796 ft
7.625"6,110 ft1,100 sx

Records & Logs

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

W-2/G-1 2022-07-28
W-2/G-1 2020-01-27
W-2/G-1 2020-01-03
W-2/G-1 2014-11-17
W-2/G-1 1996-11-22 log on file
W-2/G-1 1996-12-12

+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 28.365552
Lon -97.158260

Well Details

Well Number
85
Max Depth
7,000 ft
Drill Type
Vertical
County
REFUGIO
District
2
Completed
1983-04-12

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