42-211-31159

PRODUCING

GULF-MESA SAPPINGTON

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

RRC Lookup

Permits

Max Depth

12,000 ft

First Permit

1979-09-20

Latest Activity

1979-09-20

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

1979-11-28

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: GULF OIL CORP.

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

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.

Gas

production & DCA →

Permit History (1)

#58807 Drill Final Completion

GULF-MESA SAPPINGTON · 12,000 ft

1979-09-20

Permit Applications (1)

#58807 A GULF OIL CORP.

received 1979-09-20

Well Details

Well Number: 3
Max Depth: 12,000 ft
Drill Type: Vertical
County: HEMPHILL
District: 10
Operator: MOUNTAINSIDE ENERGY OPERATING L
Completed: 1979-11-28

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 →