42-103-32232

SAND HILLS JUDKINS UNIT

CRANE County · District 8 · CORTEZ OPERATING COMPANY

Permits

Max Depth

3,305 ft

First Permit

1980-03-11

Latest Activity

2003-06-24

Lifespan

23 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

MOBIL PRODUCING TX. & N.M. INC. 1993-1996→ TITAN RESOURCES I, INC. 1996-2000→ PURE RESOURCES, L.P. 2000-2002→ HOME-STAKE OIL & GAS COMPANY 2002-2002→ CORTEZ OPERATING COMPANY 2002-2004→ ENCORE OPERATING, L.P. 2004-2009→ ENCORE ENERGY PARTNERS OPER LLC 2009-2012→ VANGUARD PERMIAN, LLC 2012-2015→ VANGUARD OPERATING, LLC 2015-2019→ GRIZZLY OP OF DELAWARE, LLC 2019-2020

Lease Production

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

Formation Tops (5) Elevation 2,605 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
YATES	1,500 ft	+1,105 ft
QUEEN	2,200 ft	+405 ft
GRAYBURG	2,550 ft	+55 ft
JUDKINS	2,750 ft	-145 ft
TUBB	4,250 ft	-1,645 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
2,451–2,520 ft	Perforated
2,983–3,079 ft	Perforated

Casing (5)

Size	Set Depth	Cement
8.625"	601 ft	275 sx
8.625"	605 ft	275 sx
2.375"	3,141 ft	—
5.5"	3,304 ft	700 sx
5.5"	3,305 ft	700 sx

Permit History (3)

#532496 Recompletion

SAND HILLS JUDKINS UNIT · 3,305 ft

2003-06-24

#429179 Recompletion Final Completion

LEA, P.J. · 2,900 ft

1994-10-20

Spud 1994-10-24

#74882 Drill Final Completion

LEA, P. J. A/C 2 · 3,300 ft

1980-03-11

Spud 1980-03-28

Applications (3)

#532496 A CORTEZ OPERATING COMPANY

received 2003-05-29

#429179 A MOBIL PRODUCING TX. & N.M. INC.

received 1994-10-17

#74882 A MOBIL PRODUCING TX. & N.M. INC.

received 1980-03-11

Records & Logs

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

W-2/G-1 1994-12-08 log on file

W-2/G-1 1994-12-28

W-2/G-1 1980-06-03

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 CRANE County.

Well Details

Well Number: 47
Max Depth: 3,305 ft
Drill Type: Vertical
County: CRANE
District: 8
Operator: CORTEZ OPERATING COMPANY

Operator

Name: CORTEZ OPER CO
Location: FORT WORTH
P-5 Status: Inactive (filed 2003-12-29)
Cum Oil (all leases): 587,914 bbl
Cum Gas (all leases): 4,076,130 mcf
Total Permits: 24