42-391-01527

Final Completion

TOM OCONNOR (5800 SD) FLD. UNIT

REFUGIO County · District 2 · HILCORP ENERGY COMPANY · TOM OCONNOR (5800)

Permits

Max Depth

5,925 ft

First Permit

1979-01-04

Latest Activity

1985-10-25

Lifespan

7 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

2008-12-16

EWA / Permit operator mismatch

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

Resolved via: production → HILCORP ENERGY COMPANY

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

W-14 Disposal Plugged 2009-01-20 UIC #000039181 permitted 2008-10-20

Permitted Volume

15,000 bbl/d

Max Pressure

1,600 psi

Injection Interval

3,260–3,876 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 50 ft

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
LARGARTO (Lagarto)	1,500 ft	-1,450 ft
OAKVVLLE	2,750 ft	-2,700 ft
CATAHOULA (MIOCENE) (Catahoula)	3,300 ft	-3,250 ft
ANAHUAC (MIOCENE) (Anahuac)	4,100 ft	-4,050 ft
FRIO-GRETA (OLIGOCENE) (Frio)	4,365 ft	-4,315 ft
MIDDLE FRIO (SINTON) (Frio)	5,000 ft	-4,950 ft
LOWER FRIO (OLIGOCENE) (Frio)	5,880 ft	-5,830 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 (2)

Interval	Type
3,846–3,876 ft	Perforated
5,185–5,213 ft	Perforated

Casing (5)

Size	Set Depth	Cement
9.625"	1,119 ft	350 sx
2.875"	5,208 ft	—
50"	5,923 ft	500 sx
5"	5,923 ft	500 sx
5"	5,929 ft	500 sx

Permit History (2)

#290201 Recompletion Final Completion

O'CONNOR, THOMAS "A" · 5,925 ft

1985-10-25

#40179 Recompletion Final Completion

O'CONNOR, THOMAS "A" · 5,923 ft

1979-01-04

Applications (2)

#290201 A QUINTANA PET. CORP.

received 1985-10-24

#40179 A QUINTANA PET. CORP.

received 1979-01-04

Records & Logs

4 completion filings on record.

W-2/G-1 2001-01-19

W-2/G-1 1986-04-07

W-2/G-1 1979-04-11

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: 72
Max Depth: 5,925 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: 3,428