OLSEN -8-

Oil · District 08 · Lease #29559

Operator: VISTA RESOURCES, INC. (A)

Cum Oil

13k BBL

Cum Gas

65k MCF

casinghead

Wells

1

Production

1993-01 — 2011-05

Peak Month

1994-03

Production History

Cum Oil: 12,558 BBL Cum Gas: 64,969 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

168 BBL/mo

Di (annual)

15.7%

b-factor

0.0

EUR

12,759 BBL

R-squared

0.759

type

exponential

Operator History (from monthly production reports)

2006-05 — 2012-10 CIMAREX ENERGY CO. OF COLORADO 78 mo
2002-04 — 2006-04 GRUY PETROLEUM MANAGEMENT CO. 49 mo
2000-03 — 2002-03 PRIZE OPERATING COMPANY 25 mo
1996-08 — 2000-02 VISTA RESOURCES, INC. (A) 43 mo
1993-04 — 1996-07 MERIT ENERGY COMPANY 40 mo
1993-01 — 1993-03 CONOCO INC. 3 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1CIMAREX ENERGY CO. OF COLORADO34,2002010-06-22