COOPER 357

Gas · District 10 · Lease #246525

Operator: HIGHMARK ENERGY OPERATING, LLC

Cum Oil

0 BBL

Cum Gas

1.4M MCF

Wells

1

Production

2008-12 — 2026-04

Peak Month

2009-01

Production History

Cum Oil: 0 BBL Cum Gas: 1,358,297 MCF

RRC production reported through Apr 2026 · recent months incomplete

Operator History (from monthly production reports)

2022-02 — 2026-07 HIGHMARK ENERGY OPERATING, LLC 54 mo
2008-12 — 2022-01 EOG RESOURCES, INC. 158 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HHIGHMARK ENERGY OPERATING, LLC210,5002008-08-11