BIG CHIEF

Oil · District 10 · Lease #46940

Operator: COG OPERATING LLC

Cum Oil

3k BBL

Cum Gas

0 MCF

Wells

1

Production

2015-03 — 2020-09

Peak Month

2015-05

Production History

Cum Oil: 2,735 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

621 BBL/mo

Di (annual)

366.2%

b-factor

0.2

EUR

2,547 BBL

R-squared

0.946

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4801COG OPERATING LLC614,5002015-10-27
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