ECHO BS UNIT A

Oil · District 08 · Lease #60863

Operator: COG OPERATING LLC

Cum Oil

934k BBL

Cum Gas

2.9M MCF

casinghead

Wells

3

Production

2023-10 — 2026-04

Peak Month

2024-11

Production History

Cum Oil: 933,779 BBL Cum Gas: 2,937,153 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

54,541 BBL/mo

Di (annual)

93.0%

b-factor

1.0

EUR

2,716,980 BBL

R-squared

0.718

type

hyperbolic

Operator History (from monthly production reports)

2023-10 — 2026-07 COG OPERATING LLC 34 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2250HCOG OPERATING LLC111,0002023-05-02
2251HCOG OPERATING LLC111,0002023-05-02
2252HCOG OPERATING LLC111,0002023-05-02