42-391-01383

M. F. LAMBERT

REFUGIO County · District 2 · HILCORP ENERGY COMPANY

Permits

Max Depth

6,010 ft

First Permit

1979-07-18

Latest Activity

2015-05-27

Lifespan

36 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

PENNZOIL EXPLORATION & PROD. CO. 1993-1999→ QUINTANA PET. CORP. 1993-2000→ PENNZENERGY EXP. & PROD., L.L.C. 1999-2000→ DEVON ENERGY PRODUCTION CO, L.P. 2000-2002→ 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.

Formation Tops (4) Elevation 50 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
LARGARTO (Lagarto)	2,750 ft	-2,700 ft
OAKVILLE	4,100 ft	-4,050 ft
ANAHUAC	4,365 ft	-4,315 ft
FRIO	6,010 ft	-5,960 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 (3)

Interval	Type
5,709–5,724 ft	Perforated
5,756–5,766 ft	Perforated
?–5,714 ft	Perforated

Casing (4)

Size	Set Depth	Cement
10.75"	1,203 ft	500 sx
2.375"	5,692 ft	—
7"	5,899 ft	528 sx
7"	5,899 ft	528 sx

Permit History (3)

#806745 Recompletion

M. F. LAMBERT · 6,010 ft

2015-05-27

#713101 Recompletion Final Completion

TOM O'CONNOR (5800 SD) FLD. UNIT · 6,010 ft

2011-04-15

Spud 2011-04-07

#53186 Recompletion Final Completion

LAMBERT, M. F. · 6,010 ft

1979-07-18

Applications (3)

#806745 A HILCORP ENERGY COMPANY

received 2015-05-20

#713101 A HILCORP ENERGY COMPANY

received 2011-03-29

#53186 A PENNZOIL PRODUCING CO.

received 1979-07-18

Records & Logs

3 completion filings on record.

W-2/G-1 2011-05-04

W-2/G-1 1979-10-03

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: 45
Max Depth: 6,010 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