42-413-31672

Final Completion

CLAYTON-HEMPHILL EAST

SCHLEICHER County · District 7 · THOMPSON J. CLEO · OZONA N. E. (ELLENBURGER)

Permits

Max Depth

9,500 ft

First Permit

1988-02-26

Latest Activity

1990-01-10

Lifespan

2 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1988-04-23

Shut-In

—

Plugged

—

EWA / Production operator mismatch

Scheduling: THOMPSON J. CLEO ≠ Production: ZARVONA ENERGY LLC (reported 2026-03)

Resolved via: production → ZARVONA ENERGY LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

THOMPSON, J. CLEO 1993-2008→ APPROACH OPERATING LLC 2008-2020→ ZARVONA ENERGY LLC 2020-2026

Lease Production

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

Formation Tops (5) Elevation 2,436 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
BASE MID WOLFCAMP/LS (Wolfcamp)	5,706 ft	-3,270 ft
CANYON	8,204 ft	-5,768 ft
STRAWN	8,362 ft	-5,926 ft
DETRITAL	8,412 ft	-5,976 ft
ELLENBURGER	8,488 ft	-6,052 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 (2)

Interval	Type
8,208–8,335 ft	Perforated
8,515–8,542 ft	Perforated

Casing (2)

Size	Set Depth	Cement
8.625"	1,524 ft	600 sx
4.5"	8,555 ft	450 sx

Permit History (2)

#368369 Recompletion Final Completion

CLAYTON-HEMPHILL EAST · 8,443 ft

1990-01-10

#343257 Drill Final Completion

CLAYTON-HEMPHILL EAST · 9,500 ft

1988-02-26

Applications (2)

#368369 A THOMPSON, J. CLEO

received 1990-01-08

#343257 A THOMPSON, J. CLEO

received 1988-02-29

Records & Logs

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

W-2/G-1 1990-01-08

W-2/G-1 1990-02-01

W-2/G-1 1988-05-16 log on file

W-2/G-1 1988-06-04

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 SCHLEICHER County.

Well Details

Well Number: 1
Max Depth: 9,500 ft
Drill Type: Vertical
County: SCHLEICHER
District: 7
Operator: THOMPSON J. CLEO
Completed: 1988-04-23

Operator

Name: THOMPSON, J. CLEO
Location: DALLAS
P-5 Status: Inactive (filed 2024-01-30)
Cum Oil (all leases): 34,884,610 bbl
Cum Gas (all leases): 184,572,150 mcf
Total Permits: 1,739