42-391-00198

MAUDE WILLIAMS ET AL "A"

REFUGIO County · District 2 · HILCORP ENERGY COMPANY

Permits

Max Depth

5,822 ft

First Permit

1988-05-06

Latest Activity

2009-07-15

Lifespan

21 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 2000-2007

Lease Production

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

Gas

production & DCA →

Formation Tops (7) Elevation 56 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
LARGARTO (Lagarto)	1,500 ft	-1,444 ft
OAKVILLE	2,750 ft	-2,694 ft
CATAHOULA	3,300 ft	-3,244 ft
ANAHUAC SHALE (Anahuac)	4,100 ft	-4,044 ft
FRIO-GRETA (Frio)	4,365 ft	-4,309 ft
MIDDLE FRIO (Frio)	5,000 ft	-4,944 ft
LOWER FRIO (Frio)	5,400 ft	-5,344 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 (2)

Interval	Type
4,426–4,436 ft	Perforated
4,498–4,508 ft	Perforated

Casing (3)

Size	Set Depth	Cement
8.625"	1,527 ft	475 sx
1.5"	4,402 ft	—
2.875"	5,822 ft	1,085 sx

Permit History (2)

#683078 Recompletion

MAUDE WILLIAMS ET AL "A" · 5,822 ft

2009-07-15

#346080 Recompletion Final Completion

WILLIAMS, MAUDE ET AL "A" · 5,822 ft

1988-05-06

Applications (2)

#683078 A HILCORP ENERGY COMPANY

received 2009-07-15

#346080 A QUINTANA PET. CORP.

received 1988-05-04

Records & Logs

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

W-2/G-1 1988-05-26 log on file

W-2/G-1 1988-07-12

W-2/G-1 1980-01-25

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 80
Max Depth: 5,822 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