AMACKER 85A

Oil · District 7C · Lease #21619

Operator: COG OPERATING LLC

Cum Oil

245k BBL

Cum Gas

960k MCF

casinghead

Wells

1

Production

2022-02 — 2026-04

Peak Month

2022-10

Production History

Cum Oil: 245,151 BBL Cum Gas: 960,317 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

23,620 BBL/mo

Di (annual)

594.5%

b-factor

1.4

EUR

549,938 BBL

R-squared

0.837

type

hyperbolic

Operator History (from monthly production reports)

2022-02 — 2026-07 COG OPERATING LLC 54 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
8502BHCOG OPERATING LLC112,0002021-10-26