42-435-33668

VANDERSTUCKEN "A"

SUTTON County · District 7 · ZEPHYR LONE STAR OPER CO.,L.L.C.

Permits

Max Depth

4,805 ft

First Permit

1990-08-22

Latest Activity

2009-01-05

Lifespan

18 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. 1993-1993→ LAGUNA PETROLEUM CORPORATION 1993-2002→ ZEPHYR LONE STAR OPER CO.,L.L.C. 2002-2023→ GES TEX WELL SERVICE, LLC 2023-2025

Lease Production

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

Gas

production & DCA →

Formation Tops (6) Elevation 2,206 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
TOP 1ST WOLFCAMP LIME (Wolfcamp)	2,009 ft	+197 ft
BASE 1ST WOLFCAMP LIME (Wolfcamp)	2,152 ft	+54 ft
TOP 2ND WOLFCAMP LIME (Wolfcamp)	2,191 ft	+15 ft
BASE 2ND WOLFCAMP LIME (Wolfcamp)	2,351 ft	-145 ft
TOP OF CANYON SANDS (Canyon)	3,002 ft	-796 ft
BASE OF CANYON SAND (Canyon)	4,273 ft	-2,067 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 (1)

Interval	Type
4,236–4,262 ft	Perforated

Casing (2)

Size	Set Depth	Cement
8.625"	1,218 ft	490 sx
4.5"	4,542 ft	500 sx

Permit History (2)

#676633 Recompletion

VANDERSTUCKEN "A" · 4,805 ft

2009-01-05

#376937 Drill Final Completion

VANDERSTUCKEN "A" · 4,700 ft

1990-08-22

Spud 1990-09-06

Applications (2)

#676633 A ZEPHYR LONE STAR OPER CO.,L.L.C.

received 2008-12-22

#376937 A PENNZOIL EXPLORATION & PROD. CO.

received 1990-08-22

Records & Logs

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

W-2/G-1 1991-06-18 log on file

W-2/G-1 1991-06-26

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 SUTTON County.

Well Details

Well Number: 6
Max Depth: 4,805 ft
Drill Type: Vertical
County: SUTTON
District: 7
Operator: ZEPHYR LONE STAR OPER CO.,L.L.C.

Operator

Name: ZEPHYR LONE STAR OPER CO.,L.L.C
Location: OKLAHOMA CI, TY
P-5 Status: Active (filed 2026-02-02)
Cum Oil (all leases): 14,260 bbl
Cum Gas (all leases): 21,271,953 mcf
Activities: OPRS/G
Total Permits: 30