A.B. HARRINGTON H12

Oil · District 08 · Lease #57830

Operator: COG OPERATING LLC

Cum Oil

311k BBL

Cum Gas

618k MCF

casinghead

Wells

1

Production

2022-06 — 2026-04

Peak Month

2023-05

Production History

Cum Oil: 310,998 BBL Cum Gas: 618,400 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

27,593 BBL/mo

Di (annual)

282.7%

b-factor

1.0

EUR

581,261 BBL

R-squared

0.980

type

hyperbolic

Operator History (from monthly production reports)

2022-06 — 2026-07 COG OPERATING LLC 50 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
604BHCOG OPERATING LLC112,0002021-11-22