FIRST NATIONAL TRUST-COURSON 571

Gas · District 10 · Lease #226825

Operator: HIGHMARK ENERGY OPERATING, LLC

Cum Oil

0 BBL

Cum Gas

284k MCF

Wells

1

Production

2007-01 — 2026-04

Peak Month

2007-05

Production History

Cum Oil: 0 BBL Cum Gas: 283,647 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
2007-01 — 2022-01 EOG RESOURCES, INC. 181 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
10HHIGHMARK ENERGY OPERATING, LLC19,0002006-11-03