ROBERTS

Oil · District 13 · Lease #29417

Operator: GRAYSON PETROLEUM COMPANY

Cum Oil

190 BBL

Cum Gas

0 MCF

Wells

1

Production

1997-11 — 1999-01

Peak Month

1998-05

Production History

Cum Oil: 190 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

65 BBL/mo

Di (annual)

747.8%

b-factor

0.0

EUR

106 BBL

R-squared

0.807

type

exponential

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1GRAYSON PETROLEUM COMPANY28,5501997-03-18
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