42-211-32324

PRODUCING

ISAACS 208

HEMPHILL County · District 10 · MOUNTAINSIDE ENERGY OPERATING L · CANADIAN SW. (GRANITE WASH)

RRC Lookup

Permits

Max Depth

10,800 ft

First Permit

1998-11-20

Latest Activity

1998-11-20

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

1999-07-07

Shut-In

—

Plugged

—

P-5 Org Status: Active

EWA / Production operator mismatch

Scheduling: MOUNTAINSIDE ENERGY OPERATING L ≠ Production: HIGHMARK ENERGY OPERATING, LLC (reported 2025-12)

EWA / Permit operator mismatch

Scheduling: MOUNTAINSIDE ENERGY OPERATING L ≠ Permit: SAMSON LONE STAR LP

Resolved via: production → HIGHMARK ENERGY OPERATING, LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1999-07

Last Production

2026-03

Operator History

Chain of Custody

SAMSON LONE STAR LP 1999-1999→ CHEVRON U. S. A. INC. 1999-2016→ PANTERA ENERGY COMPANY 2016-2021→ HIGHMARK ENERGY OPERATING, LLC 2021-2025

Lease Production

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

Gas

production & DCA →

Permit History (2)

#481057 Drill Final Completion

ISAACS 208 · 10,800 ft

1998-11-20

Spud 1999-02-26

#481057 Drill

ISAACS 208 · 10,800 ft

1998-11-20

Permit Applications (2)

#481057 A SAMSON LONE STAR LP

received 1999-01-25

#481057 A SAMSON LONE STAR LP

received 1998-11-20

Well Details

Well Number: 4
Max Depth: 10,800 ft
Drill Type: Vertical
County: HEMPHILL
District: 10
Operator: MOUNTAINSIDE ENERGY OPERATING L
Completed: 1999-07-07

Operator

Name: MOUNTAINSIDE ENERGY OPERATING, L
Location: DALLAS
P-5 Status: Y (filed 2026-01-21)
Activities: OPRS/G, OPRS/O

External Links

RRC Wellbore Query →