42-003-35527

Final Completion

ARMSTRONG ELIZABETH -D-

ANDREWS County · District 8 · HILCORP ENERGY COMPANY · MEANS SOUTH (WOLFCAMP)

Permits

Max Depth

9,700 ft

First Permit

1986-03-24

Latest Activity

1988-03-10

Lifespan

2 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1986-05-26

Shut-In

—

Plugged

—

EWA / Permit operator mismatch

Scheduling: HILCORP ENERGY COMPANY ≠ Permit: EXXON CORP.

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

EXXON CORP. 1993-2000→ EXXON MOBIL CORPORATION 2000-2011→ XTO ENERGY INC. 2012-2025→ HILCORP ENERGY COMPANY 2025-2026

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 (6) Elevation 3,153 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
RUSTLER	2,053 ft	+1,100 ft
YATES	3,254 ft	-101 ft
SEVEN RIVERS	3,482 ft	-329 ft
SAN ANDRES	4,950 ft	-1,797 ft
LEONARD	5,785 ft	-2,632 ft
WOLFCAMP	8,881 ft	-5,728 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
4,886–4,904 ft	Perforated
9,050–9,490 ft	Perforated
9,501–9,544 ft	Perforated

Casing (3)

Size	Set Depth	Cement
13.375"	354 ft	350 sx
8.625"	5,410 ft	1,440 sx
5.5"	9,700 ft	1,100 sx

Permit History (2)

#343671 Recompletion Final Completion

ARMSTRONG, ELIZABETH D · 9,700 ft

1988-03-10

#300123 Drill Final Completion

ARMSTRONG, ELIZABETH "D" · 9,700 ft

1986-03-24

Applications (2)

#343671 A EXXON CORP.

received 1988-03-09

#300123 A EXXON CORP.

received 1986-03-20

Records & Logs

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

W-2/G-1 1988-09-01

W-2/G-1 1988-09-13

W-2/G-1 1986-11-24

W-2/G-1 1986-11-03 log on file

W-2/G-1 1986-11-05

Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images and the UL library 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 ANDREWS County.

Well Details

Well Number: 4
Max Depth: 9,700 ft
Drill Type: Vertical
County: ANDREWS
District: 8
Operator: HILCORP ENERGY COMPANY
Completed: 1986-05-26

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