ECHO A UNIT

Oil · District 08 · Lease #57193

Operator: COG OPERATING LLC

Cum Oil

864k BBL

Cum Gas

1.6M MCF

casinghead

Wells

2

Production

2021-11 — 2026-04

Peak Month

2022-01

Production History

Cum Oil: 863,697 BBL Cum Gas: 1,558,425 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

57,290 BBL/mo

Di (annual)

148.7%

b-factor

0.7

EUR

1,260,957 BBL

R-squared

0.957

type

hyperbolic

Operator History (from monthly production reports)

2021-11 — 2026-07 COG OPERATING LLC 57 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2201HCOG OPERATING LLC212,9002019-08-13
2202HCOG OPERATING LLC312,9002019-08-13