AMACKER 66F

Oil · District 7C · Lease #20848

Operator: COG OPERATING LLC

Cum Oil

449k BBL

Cum Gas

2.1M MCF

casinghead

Wells

1

Production

2019-06 — 2026-04

Peak Month

2020-04

Production History

Cum Oil: 448,814 BBL Cum Gas: 2,142,413 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

40,698 BBL/mo

Di (annual)

371.0%

b-factor

0.9

EUR

572,384 BBL

R-squared

0.973

type

hyperbolic

Operator History (from monthly production reports)

2019-06 — 2026-07 COG OPERATING LLC 86 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6606BHCOG OPERATING LLC111,0002019-01-23