42-391-01425

LAMBERT GAS UNIT

REFUGIO County · District 2 · HILCORP ENERGY COMPANY

Permits

Max Depth

5,940 ft

First Permit

1982-07-14

Latest Activity

2006-02-01

Lifespan

24 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

W-14 Disposal Active UIC #000096439 permitted 2006-05-31

Permitted Volume

20,000 bbl/d

Max Pressure

1,430 psi

Injection Interval

2,875–4,025 ft

Injected (12mo)

—

Monthly injected volume (bbl, from H-10 filings through 2025-09-01)

Operator History

Chain of Custody

PENNZOIL EXPLORATION & PROD. CO. 1993-1999→ PENNZENERGY EXP. & PROD., L.L.C. 1999-2000→ DEVON ENERGY PRODUCTION CO, L.P. 2000-2002→ HILCORP ENERGY COMPANY 2002-2018

Lease Production

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

Oil

production & DCA →

Formation Tops (8) Elevation 64 ft (DF)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
LARGARTA (Lagarto)	1,617 ft	-1,553 ft
OAKVILLE	2,434 ft	-2,370 ft
CATAHOULA	3,666 ft	-3,602 ft
CATAHOULA	3,710 ft	-3,646 ft
FRIO	4,365 ft	-4,301 ft
FRIO	4,368 ft	-4,304 ft
JACKSON/YEGUA (Jackson)	—	—
NO CHANGE	—	—

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 (5)

Interval	Type
3,822–3,848 ft	Perforated
3,822–3,996 ft	Perforated
3,975–3,996 ft	Perforated
4,133–4,145 ft	Perforated
4,410–4,417 ft	Perforated

Casing (4)

Size	Set Depth	Cement
10.75"	1,191 ft	500 sx
2.375"	4,099 ft	—
7"	5,919 ft	500 sx
7"	5,931 ft	500 sx

Permit History (3)

#613176 Recompletion

LAMBERT GAS UNIT · 5,940 ft

2006-02-01

#533682 Recompletion

LAMBERT, M. F. · 5,940 ft

2003-07-03

#167810 Recompletion Final Completion

LAMBERT, M.F. · 5,940 ft

1982-07-14

Applications (3)

#613176 A HILCORP ENERGY COMPANY

received 2006-01-27

#533682 A HILCORP ENERGY COMPANY

received 2003-06-30

#167810 A PENNZOIL PRODUCING CO.

received 1982-07-14

Records & Logs

5 completion filings on record.

W-2/G-1 2020-05-12

W-2/G-1 2014-11-12

W-2/G-1 2008-07-07

W-2/G-1 1982-08-20

W-2/G-1 1970-03-13

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: 40
Max Depth: 5,940 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