HARRINGTON, A. B.

Oil · District 08 · Lease #39629

Operator: COG OPERATING LLC

Cum Oil

398k BBL

Cum Gas

1.0M MCF

casinghead

Wells

11

Production

2009-04 — 2023-05

Peak Month

2015-10

Production History

Cum Oil: 397,553 BBL Cum Gas: 1,039,057 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

6,967 BBL/mo

Di (annual)

29.8%

b-factor

0.0

EUR

280,708 BBL

R-squared

0.930

type

exponential

Operator History (from monthly production reports)

2009-04 — 2026-07 COG OPERATING LLC 208 mo

Wells (11)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
14COG OPERATING LLC111,5002013-02-28
12COG OPERATING LLC112,0002011-05-30
10COG OPERATING LLC112,0002011-05-04
6COG OPERATING LLC112,0002011-02-23
8COG OPERATING LLC212,0002010-10-27
5COG OPERATING LLC111,5002009-04-21
3COG OPERATING LLC311,5002008-02-20
3ACOG OPERATING LLC311,5002008-02-20
4COG OPERATING LLC213,2002008-02-20
2COG OPERATING LLC210,6502003-04-25
1COG OPERATING LLC110,9352001-08-28