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42-391-00522

Final Completion

TOM O'CONNOR (5730 FT. SD.) UNIT

REFUGIO County · District 2 · HILCORP ENERGY COMPANY

Permits

5

Max Depth

5,919 ft

First Permit

1979-07-09

Latest Activity

2009-08-28

Lifespan

30 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 Inactive UIC #000119019 permitted 2019-08-14

Permitted Volume

10,000 bbl/d

Max Pressure

2,720 psi

Injection Interval

5,480–5,780 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 →
Oil
production & DCA →
Oil
production & DCA →

Formation Tops (8) Elevation 59 ft

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

Perforations (3)

IntervalType
5,705–5,711 ftPerforated
5,758–5,771 ftPerforated
5,852–5,857 ftPerforated

Casing (3)

SizeSet DepthCement
9.625"1,017 ft350 sx
2.375"5,695 ft—
5.5"5,919 ft500 sx

Permit History (5)

#684485 Recompletion Final Completion

TOM O'CONNOR (5730 FT. SD.) UNIT · 5,919 ft

2009-08-28

Spud 2002-08-02

#522046 Recompletion

TOM O'CONNOR (5730 FT. SD.) UNIT · 5,919 ft

2002-07-24

#365409 Recompletion Final Completion

TOM O'CONNOR(5800SAND)FIELD UNIT · 5,919 ft

1989-10-23

Spud 1991-09-05

#93393 Recompletion Final Completion

WILLIAMS, MAUDE ET AL "B" · 5,919 ft

1980-09-17

#52413 Recompletion

WILLIAMS, MAUDE ET AL "B" · 5,919 ft

1979-07-09

Applications (5)

#684485 A HILCORP ENERGY COMPANY
received 2009-08-25
#522046 A HILCORP ENERGY COMPANY
received 2002-07-22
#365409 A QUINTANA PET. CORP.
received 1989-10-20
#93393 A QUINTANA PET. CORP.
received 1980-09-17
#52413 A QUINTANA PET. CORP.
received 1979-07-09

Records & Logs

9 completion filings on record · 2 with log images at RRC.

W-2/G-1 2009-09-02 log on file
W-2/G-1 2009-10-21
W-2/G-1 1991-09-25 log on file
W-2/G-1 1992-10-07
W-2/G-1 1992-08-25
W-2/G-1 1980-12-01

+3 more filings

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
B 20
Max Depth
5,919 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