TIMMERMAN J4

Oil · District 08 · Lease #53875

Operator: COG OPERATING LLC

Cum Oil

473k BBL

Cum Gas

976k MCF

casinghead

Wells

1

Production

2020-02 — 2026-04

Peak Month

2020-04

Production History

Cum Oil: 473,154 BBL Cum Gas: 975,815 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

24,229 BBL/mo

Di (annual)

79.8%

b-factor

0.1

EUR

404,835 BBL

R-squared

0.926

type

hyperbolic

Operator History (from monthly production reports)

2020-02 — 2026-07 COG OPERATING LLC 78 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2207MHCOG OPERATING LLC112,0002019-04-17