42-391-01827

Final Completion

THOMAS O'CONNOR "B"

REFUGIO County · District 2 · HILCORP ENERGY COMPANY

Permits

Max Depth

6,800 ft

First Permit

1979-06-26

Latest Activity

2009-12-31

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

2021-10

Injection / Disposal

H-1 Injection Plugged 2018-08-27 UIC #000097385 permitted 2010-04-20

Permitted Volume

5,000 bbl/d

Max Pressure

1,500 psi

Injection Interval

5,000–5,730 ft

Injected (12mo)

—

Monthly injected volume (bbl, from H-10 filings through 2018-10-01)

Operator History

Chain of Custody

QUINTANA PET. CORP. 1993-2000→ HILCORP ENERGY COMPANY 2000-2018

Lease Production

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

Formation Tops (7) Elevation 13 ft

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
LARGARTO (Lagarto)	1,500 ft	-1,487 ft
OAKVILLE	2,750 ft	-2,737 ft
CATAHOULA (MIOCENE) (Catahoula)	3,300 ft	-3,287 ft
ANAHUAC (MIOCENE) (Anahuac)	4,100 ft	-4,087 ft
FRIO-GRETA (OLIGOCENE) (Frio)	4,365 ft	-4,352 ft
MIDDLE FRIO (SINTON) (Frio)	5,000 ft	-4,987 ft
LOWER FRIO (OLIGOCENE) (Frio)	5,880 ft	-5,867 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 (6)

Interval	Type
5,265–5,272 ft	Perforated
5,497–5,501 ft	Perforated
5,700–5,710 ft	Perforated
5,845–5,850 ft	Perforated
?–5,415 ft	Perforated
?–5,702 ft	Perforated

Casing (3)

Size	Set Depth	Cement
9.625"	1,349 ft	500 sx
2.375"	5,236 ft	—
5.5"	5,939 ft	1,050 sx

Permit History (4)

#689124 Recompletion Final Completion

THOMAS O'CONNOR "B" · 6,800 ft

2009-12-31

Spud 2009-12-16

#363903 Recompletion Final Completion

O'CONNOR, THOMAS "B" · 5,939 ft

1989-09-13

#99016 Recompletion Final Completion

O'CONNOR, THOMAS "B" · 5,937 ft

1980-10-21

#52020 Recompletion

O'CONNOR, THOMAS "B" · 5,937 ft

1979-06-26

Applications (4)

#689124 A HILCORP ENERGY COMPANY

received 2009-12-29

#363903 A QUINTANA PET. CORP.

received 1989-09-13

#99016 A QUINTANA PET. CORP.

received 1980-10-21

#52020 A QUINTANA PET. CORP.

received 1979-06-26

Records & Logs

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

W-2/G-1 2010-05-14

W-2/G-1 2010-07-01

W-2/G-1 1989-09-20 log on file

W-2/G-1 1989-10-10

W-2/G-1 1980-12-29

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: 15
Max Depth: 6,800 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