42-003-07679

SHUT IN

SHAFTER LAKE CLEARFORK UNIT

ANDREWS County · District 8 · HIGHMARK ENERGY OPERATING LLC · SHAFTER LAKE (CLEAR FORK)

RRC Lookup

Permits

Max Depth

9,905 ft

First Permit

1990-04-06

Latest Activity

1990-04-06

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

—

Shut-In

—

Plugged

—

P-5 Org Status: Delinquent

EWA / Permit operator mismatch

Scheduling: HIGHMARK ENERGY OPERATING LLC ≠ Permit: ARCO OIL & GAS CO.

Resolved via: production → 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

HENRY PETROLEUM CORP. 1993-2001→ HENRY PETROLEUM LP 2001-2008→ COG OPERATING LLC 2009-2012→ LEGACY RESERVES OPERATING LP 2013-2023→ HIGHMARK ENERGY OPERATING, LLC 2023-2025

Lease Production

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

Permit History (1)

#371791 Recompletion U

UNIVERSITY 13G · 9,905 ft

1990-04-06

Permit Applications (1)

#371791 A ARCO OIL & GAS CO.

received 1990-04-04

Well Details

Well Number: 1
Max Depth: 9,905 ft
Drill Type: Vertical
County: ANDREWS
District: 8
Operator: HIGHMARK ENERGY OPERATING LLC

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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