BIG CHIEF

Oil · District 08 · Lease #41788

Operator: COG OPERATING LLC

Cum Oil

9k BBL

Cum Gas

6k MCF

casinghead

Wells

2

Production

2011-06 — 2012-07

Peak Month

2012-02

Production History

Cum Oil: 8,525 BBL Cum Gas: 5,723 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,412 BBL/mo

Di (annual)

497.5%

b-factor

0.0

EUR

5,899 BBL

R-squared

0.619

type

exponential

Operator History (from monthly production reports)

2011-06 — 2014-09 COG OPERATING LLC 40 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4801SCOUT ENERGY MANAGEMENT LLC614,5002015-10-27
4715SCOUT ENERGY MANAGEMENT LLC312,0002013-04-17