AMACKER 66H

Oil · District 7C · Lease #21404

Operator: COG OPERATING LLC

Cum Oil

395k BBL

Cum Gas

2.3M MCF

casinghead

Wells

1

Production

2021-09 — 2026-04

Peak Month

2021-12

Production History

Cum Oil: 395,172 BBL Cum Gas: 2,276,460 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

31,776 BBL/mo

Di (annual)

439.7%

b-factor

1.2

EUR

666,203 BBL

R-squared

0.852

type

hyperbolic

Operator History (from monthly production reports)

2021-09 — 2026-07 COG OPERATING LLC 59 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6601BHCOG OPERATING LLC212,0002020-02-03