HEISER

Oil · District 01 · Lease #17926

Operator: BLACKBRUSH O & G, LLC

Cum Oil

22k BBL

Cum Gas

120k MCF

casinghead

Wells

1

Production

2012-11 — 2026-04

Peak Month

2016-08

Production History

Cum Oil: 21,761 BBL Cum Gas: 120,155 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

223 BBL/mo

Di (annual)

10.7%

b-factor

0.0

EUR

24,920 BBL

R-squared

0.482

type

exponential

Operator History (from monthly production reports)

2012-11 — 2026-07 BLACKBRUSH O & G, LLC 165 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HBLACKBRUSH O & G, LLC37,5002019-06-26