42-003-34028

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MCMILLIAN

ANDREWS County · District 8 · HIGHMARK ENERGY OPERATING LLC · DEEP ROCK (WOLFCAMP)

RRC Lookup

Permits

Max Depth

9,600 ft

First Permit

1984-02-23

Latest Activity

2021-07-23

Lifespan

37 yrs

Regulatory Status

Schedule

ON SCHEDULE

Completion

2021-06-28

Shut-In

—

Plugged

—

P-5 Org Status: Delinquent

EWA / Production operator mismatch

Scheduling: HIGHMARK ENERGY OPERATING LLC ≠ Production: LEGACY RESERVES OPERATING LP (reported 2021-11)

EWA / Permit operator mismatch

Scheduling: HIGHMARK ENERGY OPERATING LLC ≠ Permit: LEGACY RESERVES OPERATING LP

Resolved via: scheduling → HIGHMARK ENERGY OPERATING LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-03

Operator History

Chain of Custody

MARALO, INC. 1993-1998→ MARALO, LLC 1999-2004→ COG OPERATING LLC 2004-2012→ LEGACY RESERVES OPERATING LP 2013-2021

Lease Production

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

Permit History (2)

#871432 Recompletion Final Completion

MCMILLIAN · 9,550 ft

2021-07-23

#230318 Drill Final Completion

MCMILLIAN · 9,600 ft

1984-02-23

Spud 1984-05-16

Permit Applications (2)

#871432 A LEGACY RESERVES OPERATING LP

received 2021-07-21

#230318 A MARALO, INC.

received 1984-02-22

Well Details

Well Number: 1
Max Depth: 9,600 ft
Drill Type: Vertical
County: ANDREWS
District: 8
Operator: HIGHMARK ENERGY OPERATING LLC
Completed: 2021-06-28

Operator

Name: HIGHMARK ENGY OPER, LLC
Location: DALLAS
P-5 Status: Y (filed 2025-12-04)
Cum Oil (all leases): 4,103,460 bbl
Cum Gas (all leases): 29,480,638 mcf
Activities: CSGD/G, G/PUR, GTHS/G, OPRS/G, OPRS/O
Total Permits: 15

External Links

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