HIERHOLZER-HENKE UNIT

Gas · District 01 · Lease #289621

Operator: MARATHON OIL EF LLC

Cum Oil

0 BBL

Cum Gas

194k MCF

Wells

1

Production

2012-05 — 2026-04

Peak Month

2012-06

Production History

Cum Oil: 0 BBL Cum Gas: 194,459 MCF

RRC production reported through Apr 2026 · recent months incomplete

Operator History (from monthly production reports)

2012-05 — 2026-07 MARATHON OIL EF LLC 171 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HMARATHON OIL EF LLC113,5002011-12-29