OLSEN -8-

Oil // district 10 // lease#29559

op: VISTA RESOURCES, INC. (A)

cum_oil

13k BBL

cum_gas

0 MCF

wells

1

production

1993-01 — 2012-10

peak_month

1993-03

-- production_history

cum_oil: 12,558 BBL cum_gas: 0 MCF

-- 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

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1CONOCO INC.34,2002010-06-22
EOF // data source: Texas Railroad Commission // 2026