BRILLHART 820

Oil · District 10 · Lease #8229

Operator: HIGHMARK ENERGY OPERATING, LLC

Cum Oil

5k BBL

Cum Gas

165k MCF

casinghead

Wells

1

Production

2011-05 — 2026-04

Peak Month

2019-09

Production History

Cum Oil: 4,850 BBL Cum Gas: 165,044 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
2011-05 — 2022-01 EOG RESOURCES, INC. 129 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3 HHIGHMARK ENERGY OPERATING, LLC19,0002005-03-23