A.B. HARRINGTON H1

Oil · District 08 · Lease #57183

Operator: COG OPERATING LLC

Cum Oil

317k BBL

Cum Gas

649k MCF

casinghead

Wells

1

Production

2022-03 — 2026-04

Peak Month

2022-09

Production History

Cum Oil: 317,232 BBL Cum Gas: 649,131 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

20,459 BBL/mo

Di (annual)

94.9%

b-factor

0.2

EUR

323,567 BBL

R-squared

0.934

type

hyperbolic

Operator History (from monthly production reports)

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

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
608BHCOG OPERATING LLC112,0002021-04-05