BARKER HEIRS #1

Oil · District 3 · Lease #20038

Operator: TEXAS VANGUARD OIL COMPANY

Cum Oil

2k BBL

Cum Gas

0 MCF

Wells

1

Production

1993-01 — 2003-08

Peak Month

1993-08

Production History

Cum Oil: 1,701 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

32 BBL/mo

Di (annual)

72.5%

b-factor

0.0

EUR

517 BBL

R-squared

0.342

type

exponential

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1SIERRA MINERALS, INC.15,3501987-07-16
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