42-391-00727

Final Completion

TOM OCONNOR (5800 SD) FLD. UNIT

REFUGIO County · District 2 · HILCORP ENERGY COMPANY

Permits

3

Max Depth

5,985 ft

First Permit

1989-05-01

Latest Activity

2020-08-25

Lifespan

31 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

Lease Production

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

Formation Tops (11) Elevation 55 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
LARGARTO (Lagarto)1,500 ft-1,445 ft
OAKVILLE 2,750 ft-2,695 ft
CATAHOULA (MIOCENE) (Catahoula)3,300 ft-3,245 ft
CATAHOULA 3,568 ft-3,513 ft
ANAHUAC (MIOCENE) (Anahuac)4,100 ft-4,045 ft
ANAHUAC (MIOCENE) (Anahuac)4,150 ft-4,095 ft
FRIO 4,318 ft-4,263 ft
FRIO-GRETA (OLIGOCENE) (Frio)4,365 ft-4,310 ft
MIDDLE FRIO (SINTON) (Frio)5,000 ft-4,945 ft
LOWER FRIO (OLIGOCENE) (Frio)5,880 ft-5,825 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
42-391-32675 TOM OCONNOR (5800 SD) FLD. UNIT · HILCORP ENERGY COMPANY
0.1 mi
Lagarto 2,750'Oakville 3,300'Catahoula 3,575'Catahoula 4,100'Frio 4,319'Anahuac 4,365'Frio 4,785'Frio 5,400'5800 FRIO 5,740'Frio 6,200'Jackson
42-391-31890 O'CONNOR, TOM (5600 FT. SD.)UNIT · QUINTANA PET. CORP.
0.2 mi
Lagarto 1,500'Oakville 2,750'Catahoula 3,300'Catahoula 3,560'Catahoula 3,562'Anahuac 4,100'Frio 4,310'Frio 4,365'Frio 5,000'Frio 5,880'NO CHANGE Jackson
42-391-33203 HEARD, FANNIE V. W., MRS. · HILCORP ENERGY COMPANY
0.2 mi
Catahoula 3,578'Frio 4,321'Jackson
42-391-00563 HEARD, MRS FANNIE V.W. · HILCORP ENERGY COMPANY
0.2 mi
Lagarto 1,500'Oakville 2,750'Catahoula 3,300'
42-391-00557 TOM O'CONNOR (5800 SD) FLD. UNIT · HILCORP ENERGY COMPANY
0.2 mi
Lagarto 1,500'Oakville 2,750'Catahoula 3,300'Catahoula 3,300'Anahuac 4,100'Frio 4,365'Frio 4,365'Frio 5,000'Frio 5,880'
42-391-00558 MRS. FANNIE V. W. HEARD · QUINTANA PET. CORP.
0.2 mi
Lagarto 1,500'Oakville 2,750'Catahoula 3,300'Anahuac 4,100'Frio 4,365'Frio 4,365'Frio 5,000'Frio 5,000'Frio 5,880'Frio 5,925'
42-391-00685 TOM O'CONNOR (5800 SD) FLD. UNIT · HILCORP ENERGY COMPANY
0.3 mi
Lagarto 1,500'Oakville 2,750'Catahoula 3,300'Catahoula 3,567'Catahoula 3,569'Anahuac 4,100'Frio 4,319'Frio 4,362'Frio 4,365'Frio 5,000'Frio 5,880'Jackson
42-391-00696 MRS. FANNIE V. W. HEARD · HILCORP ENERGY COMPANY
0.3 mi
Lagarto 1,500'Oakville 2,750'Catahoula 3,300'Catahoula 3,583'Anahuac 4,100'Frio 4,316'Frio 4,365'TOP OF 4500 4,387'Frio 5,000'Frio 5,880'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 (5)

IntervalType
5,035–5,047 ftPerforated
5,237–5,245 ftPerforated
5,702–5,714 ftPerforated
5,836–5,842 ftPerforated
5,848–5,852 ftPerforated

Casing (4)

SizeSet DepthCement
10.75"1,185 ft350 sx
10.75"1,220 ft350 sx
7"5,967 ft672 sx
7"5,968 ft672 sx

Permit History (3)

Applications (3)

#864763 A HILCORP ENERGY COMPANY
received 2020-08-18
#514074 A HILCORP ENERGY COMPANY
received 2001-10-01
#358735 A QUINTANA PET. CORP.
received 1989-04-28

Records & Logs

8 completion filings on record.

W-2/G-1 2023-07-26
W-2/G-1 2022-10-27
W-2/G-1 2020-11-10
W-2/G-1 2020-10-21
W-2/G-1 1994-05-24
W-2/G-1 1975-11-25

+2 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 28.393131
Lon -97.134002

Well Details

Well Number
Q306 G
Max Depth
5,985 ft
Drill Type
Vertical
County
REFUGIO
District
2

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