42-445-31723

PRODUCING

PRENTICE NORTHEAST UNIT

TERRY County · District 8 · HIGHMARK ENERGY OPERATING LLC · PRENTICE (6700)

Permits

Max Depth

7,100 ft

First Permit

1995-08-01

Latest Activity

1999-10-29

Lifespan

4 yrs

Regulatory Status

Schedule

ON SCHEDULE

Completion

1997-10-06

Shut-In

—

Plugged

—

P-5 Org Status: Active

EWA / Permit operator mismatch

Scheduling: HIGHMARK ENERGY OPERATING LLC ≠ Permit: CROSS TIMBERS OPERATING COMPANY

Resolved via: production → HIGHMARK ENERGY OPERATING, LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

H-1 Injection Cancelled 1999-03-04 UIC #000083570 permitted 1995-09-21

Permitted Volume

2,500 bbl/d

Max Pressure

2,800 psi

Injection Interval

5,750–7,100 ft

Injected (12mo)

—

Operator History

Chain of Custody

AMOCO PRODUCTION COMPANY 1993-1993→ CROSS TIMBERS OPERATING COMPANY 1994-2001→ XTO ENERGY INC. 2001-2021→ HIGHMARK ENERGY OPERATING, LLC 2022-2026

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 (7) Elevation 3,508 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
RUSTLER ANHYD. (Rustler)	2,410 ft	+1,098 ft
RUSTLER ANHYDRITE (Rustler)	2,410 ft	+1,098 ft
YATES	3,130 ft	+378 ft
SAN ANDRES	4,570 ft	-1,062 ft
GLORIETA	5,865 ft	-2,357 ft
UPPER CLEARFORK (Clear Fork)	6,100 ft	-2,592 ft
UPR. CLKFK	6,100 ft	-2,592 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
6,691–6,764 ft	Perforated
6,691–7,076 ft	Perforated
6,796–7,076 ft	Perforated

Casing (2)

Size	Set Depth	Cement
8.625"	2,433 ft	900 sx
5.5"	7,273 ft	1,550 sx

Permit History (2)

#488577 Reclass Final Completion

PRENTICE NORTHEAST UNIT · 7,100 ft

1999-10-29

Spud 1997-09-30

#438345 Drill Final Completion

PRENTICE NORTHEAST UNIT · 7,100 ft

1995-08-01

Spud 1995-09-08

Applications (3)

#488577 A CROSS TIMBERS OPERATING COMPANY

received 1999-10-15

#438345 X CROSS TIMBERS OPERATING COMPANY

received 1999-10-14

#438345 A CROSS TIMBERS OPERATING COMPANY

received 1995-07-31

Records & Logs

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

W-2/G-1 1999-02-25

W-2/G-1 1997-09-08

W-2/G-1 1996-02-06 log on file

W-2/G-1 1996-03-05

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 TERRY County.

Well Details

Well Number: 667
Max Depth: 7,100 ft
Drill Type: Vertical
County: TERRY
District: 8
Operator: HIGHMARK ENERGY OPERATING LLC
Completed: 1997-10-06

Operator

Name: HIGHMARK ENGY OPER, LLC
Location: HOUSTON
P-5 Status: Active (filed 2026-03-09)
Cum Oil (all leases): 4,551,977 bbl
Cum Gas (all leases): 30,465,409 mcf
Activities: CSGD/G, G/PUR, GTHS/G, OPRS/G, OPRS/O
Total Permits: 15