42-391-01400

Final Completion

LAMBERT M. F.

REFUGIO County · District 2 · HILCORP ENERGY COMPANY · TOM OCONNOR (5500 SAND)

Permits

Max Depth

5,845 ft

First Permit

1983-09-06

Latest Activity

1985-05-28

Lifespan

2 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

EWA / Permit operator mismatch

Scheduling: HILCORP ENERGY COMPANY ≠ Permit: PENNZOIL PRODUCING CO.

Resolved via: production → HILCORP ENERGY COMPANY

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.

Oil

production & DCA →

Formation Tops (3) Elevation 63 ft (KB)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
4,400	4,400 ft	-4,337 ft
5,250	5,228 ft	-5,165 ft
5,500	5,543 ft	-5,480 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 (4)

Interval	Type
4,392–4,397 ft	Perforated
4,400–4,405 ft	Perforated
5,220–5,225 ft	Perforated
5,228–5,233 ft	Perforated

Casing (2)

Size	Set Depth	Cement
10.75"	1,021 ft	604 sx
7"	5,845 ft	732 sx

Permit History (2)

#276227 Recompletion Final Completion

LAMBERT, M. F. · 5,845 ft

1985-05-28

#209992 Recompletion Final Completion

LAMBERT, M. F. · 5,845 ft

1983-09-06

Applications (2)

#276227 A PENNZOIL PRODUCING CO.

received 1985-05-17

#209992 A PENNZOIL PRODUCING CO.

received 1983-08-24

Records & Logs

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

W-2/G-1 1986-02-19 log on file

W-2/G-1 1986-02-26

W-2/G-1 1983-11-23

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: 121
Max Depth: 5,845 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: 3,430