42-115-33039

Unperfed Completion

WEST SPRABERRY UNIT

DAWSON County · District 8 · JO MILL OIL COMPANY LLC · SPRABERRY W. (DEEP SPRABERRY)

Permits

Max Depth

11,400 ft

First Permit

2000-02-23

Latest Activity

2006-01-12

Lifespan

6 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2006-04-20

Shut-In

—

Plugged

2010-02-16

EWA / Permit operator mismatch

Scheduling: JO MILL OIL COMPANY LLC ≠ Permit: CHEVRON U. S. A. INC.

Resolved via: production → JO MILL OIL COMPANY LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-12

Last Production

2026-07

Injection / Disposal

DAWSON County disposal market →

H-1 Injection Plugged 2010-02-22 UIC #000096732 permitted 2006-08-21

Permitted Volume

2,500 bbl/d

Max Pressure

3,000 psi

Injection Interval

7,100–8,200 ft

Injected (12mo)

—

Operator History

Chain of Custody

TEXACO E & P INC. 1993-2002→ CROW, DAVID 2000-2000→ GIFFORD OPERATING COMPANY 2000-2003→ CHEVRON U. S. A. INC. 2002-2020→ SOJOURNER DRILLING CORPORATION 2003-2004→ JO MILL OIL COMPANY 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 (6) Elevation 2,912 ft (KB)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
SPRABERRY	6,610 ft	-3,698 ft
DEAN	7,768 ft	-4,856 ft
PENN (Pennsylvanian)	8,050 ft	-5,138 ft
LOWER MISSISSIPPIAN (Mississippian)	10,332 ft	-7,420 ft
WOODFORD SHALE (Woodford)	10,666 ft	-7,754 ft
FUSSELMAN	10,704 ft	-7,792 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
8,071–8,074 ft	Perforated

Casing (6)

Size	Set Depth	Cement
13.375"	402 ft	375 sx
13.375"	402 ft	375 sx
9.625"	3,792 ft	1,400 sx
9.625"	3,792 ft	1,400 sx
4.5"	8,331 ft	630 sx
4.5"	8,331 ft	630 sx

Permit History (2)

#608958 Recompletion Unperfed Completion

WEST SPRABERRY UNIT · 9,000 ft

2006-01-12

Spud 2006-03-29

#492407 Drill Final Completion

VAUGHN · 11,400 ft

2000-02-23

Spud 2000-03-02

Applications (2)

#608958 A CHEVRON U. S. A. INC.

received 2005-11-03

#492407 A CROW, DAVID

received 2000-02-23

Records & Logs

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

W-2/G-1 2006-05-26 log on file

W-2/G-1 2006-06-28

W-2/G-1 2000-06-16

W-2/G-1 2000-05-08 log on file

W-2/G-1 2000-05-26

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 DAWSON County.

Well Details

Well Number: 509
Max Depth: 11,400 ft
Drill Type: Vertical
County: DAWSON
District: 8
Operator: JO MILL OIL COMPANY LLC
Completed: 2006-04-20

Operator

Name: JO MILL OIL COMPANY LLC
Location: FORT WORTH
P-5 Status: Active (filed 2025-07-09)
Cum Oil (all leases): 4,349,903 bbl
Cum Gas (all leases): — mcf
Activities: OPRS/O