← Wells

42-391-01552

Final Completion

TOM O'CONNOR (5800 SD) FLD UNIT

REFUGIO County · District 2 · HILCORP ENERGY COMPANY

Permits

5

Max Depth

5,918 ft

First Permit

1978-05-17

Latest Activity

2023-07-14

Lifespan

45 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

Injection / Disposal

H-1 Injection Active UIC #000126375 permitted 2024-01-17

Permitted Volume

10,000 mcf/d

Max Pressure

—

Injection Interval

5,833–5,890 ft

Injected (12mo)

—

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

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 →

Formation Tops (5) Elevation 55 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
ANAHUAC 2,252 ft-2,197 ft
ANAHUAC (MIOCENE) (Anahuac)2,252 ft-2,197 ft
CATAHOULA 3,609 ft-3,554 ft
FRIO 4,265 ft-4,210 ft
FRIO ——

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
✓ 42-391-01553 TOM O'CONNOR (5800 SD) FLD UNIT · HILCORP ENERGY COMPANY
0.2 mi
Catahoula 3,672'Frio 4,419'M. FRIO SINTON 5,030'NO CHANGE —Jackson —
✓ 42-391-01551 TOM OCONNOR (5800 SD) FLD. UNIT · QUINTANA PET. CORP.
0.2 mi
Lagarto 1,500'Lagarto 2,750'Oakville 2,750'Oakville 2,880'Catahoula 3,300'Oakville 3,300'Catahoula 3,655'Catahoula 4,100'Anahuac 4,100'Anahuac 4,230'Frio 4,365'Anahuac 4,365' +9 more
✓ 42-391-01539 TOM O'CONNOR (5800 SD) FLD UNIT · HILCORP ENERGY COMPANY
0.2 mi
Catahoula 3,650'Greta 4,362'Frio 4,402'Frio 5,068'Frio 5,891'Jackson —NO CHANGE —
✓ 42-391-01579 TOM OCONNOR (5800SD) 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'
✓ 42-391-01546 O'CONNOR, THOMAS 'A' · QUINTANA PET. CORP.
0.3 mi
Lagarto 1,500'Oakville 2,750'Catahoula 3,300'Catahoula 3,676'Anahuac 4,100'Frio 4,365'Frio 4,452'Frio 5,000'Frio 5,880'Jackson —
✓ 42-391-02036 TOM OCONNOR (5800SD) FLD. UNIT · QUINTANA PET. CORP.
0.4 mi
Lagarto 1,500'SURFACE SD CLAY 1,500'Lagarto 2,750'Oakville 2,750'Catahoula 3,300'Oakville 3,300'Catahoula 4,100'Anahuac 4,100'Anahuac 4,365'Frio 4,365'Frio 4,785'Frio 5,000' +3 more
✓ 42-391-32502 TOM OCONNOR (5800 SD) FLD. UNIT · HILCORP ENERGY COMPANY
0.5 mi
Lagarto 2,750'Oakville 3,300'Catahoula 3,688'Catahoula 3,690'Catahoula 4,100'Anahuac 4,365'Greta 4,420'Frio 4,421'Frio 4,785'SINTON 5,200'Frio 5,400'5500 5,650' +3 more
✓ 42-391-01564 OCONNOR, THOMAS -C- · HILCORP ENERGY COMPANY
0.5 mi
Oakville 2,750'Catahoula 3,300'Frio 4,365'

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
5,501–5,506 ftPerforated
5,833–5,842 ftPerforated
5,847–5,867 ftPerforated
?–5,800 ftPerforated

Casing (5)

SizeSet DepthCement
9.625"1,062 ft317 sx
9.625"1,062 ft350 sx
2.375"5,466 ft—
5.5"5,914 ft500 sx
5.5"5,915 ft500 sx

Permit History (5)

#891800 Recompletion Final Completion

TOM O'CONNOR (5800 SD) FLD UNIT · 5,918 ft

2023-07-14

Spud 2023-06-07

#517280 Recompletion

O'CONNOR, THOMAS "A" · 5,918 ft

2002-02-04

#487390 Recompletion

O'CONNOR, THOMAS 'A' · 5,918 ft

1999-09-15

#29885 Recompletion

O'CONNER, THOMAS "A" · 5,918 ft

1978-07-17

#24446 Recompletion

O'CONNOR, THOMAS "A" · 5,918 ft

1978-05-17

Applications (5)

#891800 A HILCORP ENERGY COMPANY
received 2023-07-03
#517280 A HILCORP ENERGY COMPANY
received 2002-02-01
#487390 A QUINTANA PET. CORP.
received 1999-09-09
#29885 A QUINTANA PET. CORP.
received 1978-07-17
#24446 A QUINTANA PET. CORP.
received 1978-05-17

Records & Logs

4 completion filings on record.

W-2/G-1 2024-08-21
W-2/G-1 2023-08-24
W-2/G-1 1978-07-24
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 28.358195
Lon -97.138086

Well Details

Well Number
Q085
Max Depth
5,918 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