42-383-32931

Final Completion

HUGHES ZULETTE

REAGAN County · District 7 · COX JOHN L. · RED HOUSE (ELLENBURGER)

Permits

Max Depth

10,600 ft

First Permit

1984-01-30

Latest Activity

1985-07-29

Lifespan

1 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1984-11-12

Shut-In

—

Plugged

—

EWA / Production operator mismatch

Scheduling: COX JOHN L. ≠ Production: PIONEER NATURAL RES. USA, INC. (reported 2023-01)

EWA / Permit operator mismatch

Scheduling: COX JOHN L. ≠ Permit: EXXON CORP.

Resolved via: scheduling → COX JOHN L.

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

COX, JOHN L. 1993-2003→ JM COX RESOURCES, L.P. 2003-2018→ DE3 OPERATING LLC 2018-2021→ PIONEER NATURAL RES. USA, INC. 2021-2022

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 (10) Elevation 2,602 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
SAN ANDRES	2,948 ft	-346 ft
CLEARFORK (Clear Fork)	4,783 ft	-2,181 ft
SPRABERRY	5,766 ft	-3,164 ft
SPRAYBERRY (Spraberry)	5,766 ft	-3,164 ft
WOLFCAMP	7,352 ft	-4,750 ft
STRAWN	9,470 ft	-6,868 ft
DEVONIAN	9,888 ft	-7,286 ft
FUSSELMAN	10,322 ft	-7,720 ft
SYLVAN	10,339 ft	-7,737 ft
ELLENBURGER	10,392 ft	-7,790 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
10,329–10,338 ft	Perforated
10,394–10,476 ft	Perforated
10,491–10,590 ft	Perforated

Casing (4)

Size	Set Depth	Cement
13.375"	454 ft	750 sx
13.375"	484 ft	750 sx
10.75"	2,921 ft	1,050 sx
5.5"	10,659 ft	2,075 sx

Permit History (2)

#281336 Recompletion Final Completion

HUGHES, ZULETTE · 10,375 ft

1985-07-29

#227722 Drill Final Completion

HUGHES, ZULETTE · 10,600 ft

1984-01-30

Spud 1984-04-07

Applications (2)

#281336 A EXXON CORP.

received 1985-07-26

#227722 A EXXON CORP.

received 1984-01-27

Records & Logs

6 completion filings on record.

W-2/G-1 2026-03-16

W-2/G-1 1985-12-02

W-2/G-1 1985-12-07

W-2/G-1 1984-12-06

W-2/G-1 1984-06-27

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 REAGAN County.

Well Details

Well Number: 11
Max Depth: 10,600 ft
Drill Type: Vertical
County: REAGAN
District: 7
Operator: COX JOHN L.
Completed: 1984-11-12

Operator

Name: COX, JOHN L
Location: MIDLAND
P-5 Status: Inactive (filed 2003-03-21)
Cum Oil (all leases): 15,795,687 bbl
Cum Gas (all leases): 2,577,420 mcf
Total Permits: 1,123