42-391-01131

TOM O'CONNOR(5600 FOOT SAND)UNIT

REFUGIO County · District 2 · HILCORP ENERGY COMPANY

Permits

2

Max Depth

8,655 ft

First Permit

1991-04-17

Latest Activity

2009-07-31

Lifespan

18 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 #000116424 permitted 2018-06-27

Permitted Volume

10,000 bbl/d

Max Pressure

2,875 psi

Injection Interval

5,750–5,860 ft

Injected (12mo)

Lease Production

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

Formation Tops (7) Elevation 58 ft

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
LARGARTO (Lagarto)1,500 ft-1,442 ft
OAKVILLE 2,750 ft-2,692 ft
CATAHOULA (MIOCENE) (Catahoula)3,300 ft-3,242 ft
ANAHUAC (MIOCENE) (Anahuac)4,100 ft-4,042 ft
FRIO-GRETA (OLIGOCENE) (Frio)4,365 ft-4,307 ft
MIDDLE FRIO (SINTON) (Frio)5,000 ft-4,942 ft
LOWER FRIO (OLIGOCENE) (Frio)5,880 ft-5,822 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 (1)

IntervalType
5,778–5,785 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"1,435 ft600 sx
5.5"6,123 ft800 sx

Permit History (2)

Applications (2)

#683356 A HILCORP ENERGY COMPANY
received 2009-07-22
#386642 A QUINTANA PET. CORP.
received 1991-04-11

Records & Logs

4 completion filings on record · 1 with log images at RRC.

W-2/G-1 1991-06-11 log on file
W-2/G-1 1991-07-05
W-2/G-1 1984-05-25
W-2/G-1 1984-01-12

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
W253B
Max Depth
8,655 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