42-391-30345

Final Completion

WILLIAMS, MAUDE ET AL "A"

REFUGIO County · District 2 · HILCORP ENERGY COMPANY

Permits

5

Max Depth

7,147 ft

First Permit

1991-03-26

Latest Activity

2006-12-15

Lifespan

16 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

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.

production & DCA →

production & DCA →

production & DCA →

production & DCA →

production & DCA →

production & DCA →

Formation Tops (21) Elevation 67 ft

Formation	Top Depth (MD)	Subsea (+above / −below SL)
LARGARTO (Lagarto)	1,500 ft	-1,433 ft
SURFACE SAND CLAY	1,500 ft	-1,433 ft
LARGARTO (Lagarto)	2,750 ft	-2,683 ft
OAKVILLE	2,750 ft	-2,683 ft
CATAHOULA (MIOCENE) (Catahoula)	3,300 ft	-3,233 ft
CATAHOULA MIOCENE (Catahoula)	3,300 ft	-3,233 ft
OAKVILLE	3,300 ft	-3,233 ft
ANAHUAC (MIOCENE) (Anahuac)	4,100 ft	-4,033 ft
ANAHUAC MIOCENE (Anahuac)	4,100 ft	-4,033 ft
CATAHOULA	4,100 ft	-4,033 ft
FRIO GRETA OLIGOCENE (Frio)	4,365 ft	-4,298 ft
FRIO-GRETA (OLIGOCENE) (Frio)	4,365 ft	-4,298 ft
FRIO-GRETA (Frio)	4,785 ft	-4,718 ft
FRIO-GRETA (OLIGOCENE) (Frio)	4,785 ft	-4,718 ft
MIDDLE FRIO (SINTON) (Frio)	5,000 ft	-4,933 ft
MIDDLE FRIO SINTON (Frio)	5,000 ft	-4,933 ft
MIDDLE FRIO (SINTON) (Frio)	5,400 ft	-5,333 ft
MIDDLE FRIO(SINTON) (Frio)	5,400 ft	-5,333 ft
LOWER FRIO (OLIGOCENE) (Frio)	5,880 ft	-5,813 ft
LOWER FRIO OLIGOCENE (Frio)	5,880 ft	-5,813 ft
LOWER FRIO (OLIG) (Frio)	7,147 ft	-7,080 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
5,250–5,256 ft	Perforated
5,267–5,272 ft	Perforated
5,294–5,297 ft	Perforated
5,429–5,435 ft	Perforated
5,859–5,861 ft	Perforated
6,938–6,942 ft	Perforated

Casing (3)

Size	Set Depth	Cement
9.625"	1,539 ft	650 sx
9.625"	1,540 ft	670 sx
5.5"	7,130 ft	1,600 sx

Permit History (5)

#630242 Recompletion Final Completion

WILLIAMS, MAUDE ET AL "A" · 7,147 ft

2006-12-15

Spud 2006-11-29

#619811 Recompletion Final Completion

WILLIAMS, MAUDE ET AL "A" · 7,147 ft

2006-05-25

Spud 2006-05-11

#417877 Recompletion Final Completion

WILLIAMS, MAUDE ET AL "A" · 7,147 ft

1993-11-08

Spud 1993-11-11

#411194 Recompletion Final Completion

WILLIAMS, MAUDE ET AL "A" · 7,147 ft

1993-05-04

Spud 1993-04-20

#386026 Recompletion

WILLIAMS, MAUDE ET AL "A" · 7,147 ft

1991-03-26

Applications (5)

#630242 A HILCORP ENERGY COMPANY

received 2006-12-08

#619811 A HILCORP ENERGY COMPANY

received 2006-05-24

#417877 A QUINTANA PET. CORP.

received 1993-11-04

#411194 A QUINTANA PET. CORP.

received 1993-04-29

#386026 A QUINTANA PET. CORP.

received 1991-03-22

Records & Logs

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

W-2/G-1 2007-01-08 log on file

W-2/G-1 2006-06-21 log on file

W-2/G-1 2007-03-26

W-2/G-1 2006-12-07

W-2/G-1 1996-01-22

W-2/G-1 1996-02-26

+5 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: D 77
Max Depth: 7,147 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: 3,429