42-391-01529

O'CONNOR, THOMAS "A"

REFUGIO County · District 2 · HILCORP ENERGY COMPANY

Permits

Max Depth

4,525 ft

First Permit

1978-02-03

Latest Activity

2001-12-17

Lifespan

24 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

W-14 Disposal Plugged 2004-08-11 UIC #000001987 permitted 1993-07-14

Permitted Volume

5,000 bbl/d

Max Pressure

1,600 psi

Injection Interval

3,284–3,302 ft

Injected (12mo)

—

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 →

Formation Tops (8) Elevation 51 ft

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
LARGARTO (Lagarto)	1,500 ft	-1,449 ft
LARGARTO (Lagarto)	2,750 ft	-2,699 ft
OAKVILLE	2,750 ft	-2,699 ft
CATAHOULA (MIOCENE) (Catahoula)	3,300 ft	-3,249 ft
CATAHOULA(MIOCENE) (Catahoula)	3,300 ft	-3,249 ft
ANAHUAC (MIOCENE) (Anahuac)	4,100 ft	-4,049 ft
ANAHUAC(MIOCENE) (Anahuac)	4,100 ft	-4,049 ft
FRIO-GRETA (OLIGOCENE) (Frio)	4,365 ft	-4,314 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 ↗

Perforations (5)

Interval	Type
3,284–3,302 ft	Perforated
3,348–3,358 ft	Perforated
3,760–3,790 ft	Perforated
4,390–4,396 ft	Perforated
?–4,388 ft	Perforated

Casing (2)

Size	Set Depth	Cement
9.625"	1,222 ft	375 sx
5.5"	4,499 ft	880 sx

Permit History (4)

#516092 Recompletion

O'CONNOR, THOMAS "A" · 4,525 ft

2001-12-17

#388922 Recompletion

O'CONNOR, THOMAS "A" · 4,525 ft

1991-06-17

Spud 1989-03-14

#356959 Recompletion

TOM O'CONNOR(5800SAND)FIELD UNIT · 4,525 ft

1989-03-14

#17640 Recompletion

O'CONNOR,TOM(5800 SAND)FLD UNIT · 4,525 ft

1978-02-03

Applications (4)

#516092 A HILCORP ENERGY COMPANY

received 2001-12-13

#388922 A QUINTANA PET. CORP.

received 1991-06-13

#356959 A QUINTANA PET. CORP.

received 1989-03-13

#17640 A QUINTANA PET. CORP.

received 1978-02-03

Records & Logs

4 completion filings on record.

W-2/G-1 1993-06-23

W-2/G-1 1993-10-26

W-2/G-1 1978-04-07

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.

No GPS coordinates yet

Coordinates come from the RRC GIS backfill and usually appear within days of permit issuance. Located in REFUGIO County.

Well Details

Well Number: 110
Max Depth: 4,525 ft
Drill Type: Vertical
County: REFUGIO
District: 2
Operator: HILCORP ENERGY COMPANY

Operator

Name: HILCORP ENGY CO
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: 3,429