← Wells

42-391-01771

Final Completion

LAMBERT, M. F.

REFUGIO County · District 2 · HILCORP ENERGY COMPANY

Permits

4

Max Depth

6,500 ft

First Permit

2007-03-30

Latest Activity

2018-10-23

Lifespan

12 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→ PENNZENERGY EXP. & PROD., L.L.C. 1999-2000→ DEVON ENERGY PRODUCTION CO, L.P. 2000-2002→ HILCORP ENERGY COMPANY 2002-2026

Lease Production

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

Gas
production & DCA →
Oil
production & DCA →
Oil
production & DCA →
Oil
production & DCA →

Formation Tops (4) Elevation 46 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
CATAHOULA 3,613 ft-3,567 ft
FRIO 4,432 ft-4,386 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 ↗

Offset Well Tops (nearest 8 wells with tops)

What nearby completed wells reported.

Cross-section
✓ 42-391-33052 M. F. LAMBERT 'A' · HILCORP ENERGY COMPANY
0.5 mi
SURFACE 1,500'Catahoula 2,585'Lagarto 2,750'Oakville 2,900'Oakville 3,300'Catahoula 3,600'Anahuac 4,100'Catahoula 4,100'Greta 4,300'Anahuac 4,365'Frio 4,430'Frio 4,785' +4 more
✓ 42-391-01328 LAMBERT, M.F. · HILCORP ENERGY COMPANY
0.5 mi
Lagarto 1,500'Oakville 2,750'Catahoula 3,300'Catahoula 3,300'Anahuac 4,100'Jackson 4,265'Frio 4,365'Frio 5,000'Frio 5,000'Frio 5,880'Frio 6,200'
✓ 42-391-01646 TOM O'CONNOR (5800 SD) FLD. UNIT · HILCORP ENERGY COMPANY
0.7 mi
Oakville 2,057'Catahoula 3,650'Greta 4,411'Frio 5,020'Lagarto —
✓ 42-391-32692 TOM O'CONNOR (5800 SD) FLD. UNIT · HILCORP ENERGY COMPANY
0.8 mi
Lagarto 2,750'Oakville 2,900'Oakville 3,300'Catahoula 3,600'Catahoula 3,640'Catahoula 4,100'Catahoula 4,100'Anahuac 4,100'Greta 4,300'Anahuac 4,365'Anahuac 4,365'Frio 4,457' +9 more
✓ 42-391-01345 TOM O'CONNOR (5800 SD) FLD. UNIT · PENNZOIL PRODUCING CO.
1.1 mi
Catahoula 3,647'Frio 4,370'Jackson —NO CHANGE —
✓ 42-391-01347 LAMBERT, M.F. · HILCORP ENERGY COMPANY
1.1 mi
SURFACE SAND CLAY 1,500'Lagarto 2,750'Oakville 2,900'Oakville 3,300'Catahoula 3,300'Anahuac 4,100'Catahoula 4,100'Frio 4,265'Anahuac 4,365'Frio 4,785'Frio 5,400'Frio 6,150'
✓ 42-391-01349 LAMBERT, M.F. · HILCORP ENERGY COMPANY
1.2 mi
Lagarto 2,750'Oakville 2,900'Oakville 3,300'Catahoula 3,600'Anahuac 4,100'Catahoula 4,100'Anahuac 4,100'Frio 4,265'Greta 4,300'Anahuac 4,365'Frio 4,785'Frio 5,000' +3 more
✓ 42-391-31888 TOM O'CONNOR (5800 SD) FLD UNIT · QUINTANA PET. CORP.
1.4 mi
Lagarto 1,500'Oakville 2,750'Catahoula 3,300'Catahoula 3,656'Anahuac 4,100'Frio 4,365'Frio 4,406'Frio 5,000'Frio 5,880'NO CHANGE —Jackson —

Nearest wells within 10 mi (surface locations). Click wells to select them, then open the cross-section to compare tops side by side (max 6 wells per section, including this one).

Perforations (5)

IntervalType
4,208–4,220 ftPerforated
4,375–4,384 ftPerforated
5,440–5,445 ftPerforated
5,487–5,493 ftPerforated
5,844–5,851 ftPerforated

Casing (2)

SizeSet DepthCement
10.75"766 ft375 sx
5.75"6,300 ft325 sx

Permit History (4)

#845815 Recompletion Final Completion

LAMBERT, M. F. · 6,500 ft

2018-10-23

Spud 2009-06-17

#681860 Recompletion

M. F. LAMBERT "A" · 6,500 ft

2009-06-16

#640854 Recompletion Final Completion

LAMBERT, M. F. "A" · 6,500 ft

2007-06-28

Spud 2007-06-18

#635765 Recompletion Final Completion

LAMBERT, M. F. "A" · 6,500 ft

2007-03-30

Spud 2007-03-19

Applications (4)

#845815 A HILCORP ENERGY COMPANY
received 2018-10-17
#681860 A HILCORP ENERGY COMPANY
received 2009-06-04
#640854 A HILCORP ENERGY COMPANY
received 2007-06-15
#635765 A HILCORP ENERGY COMPANY
received 2007-03-22

Records & Logs

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

W-2/G-1 2018-11-06 log on file
W-2/G-1 2007-10-23 log on file
W-2/G-1 2008-01-25
W-2/G-1 2007-04-30 log on file
W-2/G-1 2007-06-20
W-2/G-1 2007-06-12

+1 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.

Google Maps → Explorer Map →
Lat 28.325267
Lon -97.211136

Well Details

Well Number
A 4
Max Depth
6,500 ft
Drill Type
Vertical
County
REFUGIO
District
2
Operator
HILCORP ENERGY COMPANY

Operator

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