42-367-33502

DEAN

PARKER County · District 9 · ENERVEST OPERATING, L.L.C.

Permits

Max Depth

9,000 ft

First Permit

2004-02-18

Latest Activity

2014-05-22

Lifespan

10 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

2004-05

Last Production

2026-07

Operator History

Chain of Custody

NORTH TEXAS LLANO OPERATING CORP 2004-2005→ DENBURY ONSHORE, LLC 2005-2008→ ENERVEST OPERATING, L.L.C. 2011-2013

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 (5) Elevation 865 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
STRAWN	1,178 ft	-313 ft
ATOKA CONGL. (Atoka)	3,400 ft	-2,535 ft
BEND CONGL. (Bend)	5,688 ft	-4,823 ft
MARBLE FALLS	6,445 ft	-5,580 ft
BARNETT SHALE (Barnett)	6,460 ft	-5,595 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 (5)

Interval	Type
6,474–6,478 ft	Perforated
6,493–6,497 ft	Perforated
6,536–6,540 ft	Perforated
6,564–6,568 ft	Perforated
6,597–6,600 ft	Perforated

Casing (2)

Size	Set Depth	Cement
8.625"	945 ft	350 sx
5.5"	6,650 ft	250 sx

Permit History (2)

#784987 Recompletion

DEAN · 9,000 ft

2014-05-22

#542182 Drill Final Completion

DEAN RANCH · 7,500 ft

2004-02-18

Spud 2004-03-03

Applications (2)

#784987 A ENERVEST OPERATING, L.L.C.

received 2014-04-17

#542182 A NORTH TEXAS LLANO OPERATING CORP

received 2004-02-18

Records & Logs

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

W-2/G-1 2004-11-29

W-2/G-1 2004-05-26 log on file

W-2/G-1 2004-09-22

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 PARKER County.

Well Details

Well Number: L 1
Max Depth: 9,000 ft
Drill Type: Vertical
County: PARKER
District: 9
Operator: ENERVEST OPERATING, L.L.C.

Operator

Name: ENERVEST OPER, L.L.C
Location: HOUSTON
P-5 Status: Active (filed 2026-01-13)
Cum Oil (all leases): 39,678,049 bbl
Cum Gas (all leases): 1,492,558,001 mcf
Activities: CSGD/G, G/PUR, GTHS/G, OPRS/G
Total Permits: 1,249