TIMMERMAN J8

Oil · District 08 · Lease #54198

Operator: COG OPERATING LLC

Cum Oil

165k BBL

Cum Gas

938k MCF

casinghead

Wells

1

Production

2020-03 — 2026-04

Peak Month

2020-07

Production History

Cum Oil: 165,150 BBL Cum Gas: 937,886 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

14,650 BBL/mo

Di (annual)

341.6%

b-factor

0.6

EUR

123,161 BBL

R-squared

0.896

type

hyperbolic

Operator History (from monthly production reports)

2020-03 — 2026-07 COG OPERATING LLC 77 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2207CHCOG OPERATING LLC112,0002019-04-22