AFTERMATH WEST A UNIT

Oil · District 08 · Lease #55637

Operator: COG OPERATING LLC

Cum Oil

515k BBL

Cum Gas

806k MCF

casinghead

Wells

1

Production

2020-12 — 2026-04

Peak Month

2021-01

Production History

Cum Oil: 514,681 BBL Cum Gas: 805,580 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

41,165 BBL/mo

Di (annual)

506.8%

b-factor

1.3

EUR

915,498 BBL

R-squared

0.758

type

hyperbolic

Operator History (from monthly production reports)

2020-12 — 2026-07 COG OPERATING LLC 68 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
301HCOG OPERATING LLC212,4002019-12-31