NUTT -35-

Oil · District 08 · Lease #27784

Operator: WESTAR ENERGY, INC.

Cum Oil

21k BBL

Cum Gas

24k MCF

casinghead

Wells

1

Production

1993-01 — 2014-10

Peak Month

1999-03

Production History

Cum Oil: 20,818 BBL Cum Gas: 24,185 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

104 BBL/mo

Di (annual)

5.9%

b-factor

0.0

EUR

20,084 BBL

R-squared

0.443

type

exponential

Operator History (from monthly production reports)

2007-01 — 2015-07 ENDEAVOR ENERGY RESOURCES L.P. 103 mo
2006-01 — 2006-12 REX ENERGY OPERATING CORP. 12 mo
1993-01 — 2005-12 WESTAR ENERGY, INC. 156 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2ENDEAVOR ENERGY RESOURCES L.P.211,5002015-03-24