TIMMERMAN J10

Oil · District 08 · Lease #54257

Operator: COG OPERATING LLC

Cum Oil

585k BBL

Cum Gas

974k MCF

casinghead

Wells

1

Production

2020-03 — 2026-03

Peak Month

2020-04

Production History

Cum Oil: 585,058 BBL Cum Gas: 973,681 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

38,871 BBL/mo

Di (annual)

337.8%

b-factor

1.2

EUR

985,269 BBL

R-squared

0.966

type

hyperbolic

Operator History (from monthly production reports)

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

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2206LHCOG OPERATING LLC112,0002019-05-02