A.B. HARRINGTON H4

Oil · District 08 · Lease #57264

Operator: COG OPERATING LLC

Cum Oil

607k BBL

Cum Gas

613k MCF

casinghead

Wells

1

Production

2022-03 — 2026-04

Peak Month

2022-06

Production History

Cum Oil: 607,132 BBL Cum Gas: 612,973 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

30,706 BBL/mo

Di (annual)

145.5%

b-factor

1.0

EUR

1,089,400 BBL

R-squared

0.753

type

hyperbolic

Operator History (from monthly production reports)

2022-03 — 2026-07 COG OPERATING LLC 53 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
607LHCOG OPERATING LLC112,0002021-04-01