CRYSTAL

Oil · District 3 · Lease #18540

Operator: U. S. OPERATING, INC.

Cum Oil

2k BBL

Cum Gas

0 MCF

Wells

1

Production

1993-01 — 2004-03

Peak Month

1995-11

Production History

Cum Oil: 2,353 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

165 BBL/mo

Di (annual)

970.4%

b-factor

0.7

EUR

545 BBL

R-squared

0.883

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1U. S. OPERATING, INC.110,4001984-12-13
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