L. F. O'BRIEN ET AL UNIT

Oil · District 3 · Lease #21082

Operator: TEXAS VANGUARD OIL COMPANY

Cum Oil

1k BBL

Cum Gas

0 MCF

Wells

1

Production

1993-01 — 2008-03

Peak Month

1993-03

Production History

Cum Oil: 1,165 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

38 BBL/mo

Di (annual)

57.1%

b-factor

0.0

EUR

772 BBL

R-squared

0.349

type

exponential

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1KELPETRO, INC.17,2001990-05-29
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