42-211-31118

PRODUCING

ISAACS

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

RRC Lookup

Permits

Max Depth

12,000 ft

First Permit

1979-06-19

Latest Activity

2008-01-09

Lifespan

29 yrs

Regulatory Status

Schedule

ON SCHEDULE

Completion

2008-06-01

Shut-In

—

Plugged

—

P-5 Org Status: Active

EWA / Production operator mismatch

Scheduling: MOUNTAINSIDE ENERGY OPERATING L ≠ Production: HIGHMARK ENERGY OPERATING, LLC (reported 2025-03)

EWA / Permit operator mismatch

Scheduling: MOUNTAINSIDE ENERGY OPERATING L ≠ Permit: CHEVRON U. S. A. INC.

Resolved via: scheduling → MOUNTAINSIDE ENERGY OPERATING L

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-03

Operator History

Chain of Custody

CHEVRON U. S. A. INC. 1993-2016→ 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.

Permit History (2)

#649862 Recompletion Final Completion

ISAACS · 11,655 ft

2008-01-09

Spud 2008-05-19

#51116 Drill Final Completion

ISAACS · 12,000 ft

1979-06-19

Spud 1979-07-29

Permit Applications (2)

#649862 A CHEVRON U. S. A. INC.

received 2007-11-16

#51116 A GULF OIL CORP.

received 1979-06-19

Well Details

Well Number: 2210
Max Depth: 12,000 ft
Drill Type: Vertical
County: HEMPHILL
District: 10
Operator: MOUNTAINSIDE ENERGY OPERATING L
Completed: 2008-06-01

Operator

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

External Links

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