MARSHALL, RUTH ET AL OIL UNIT

Oil · District 3 · Lease #19227

Operator: WACKER OIL INC.

Cum Oil

19k BBL

Cum Gas

0 MCF

Wells

1

Production

1993-01 — 1994-04

Peak Month

1993-06

Production History

Cum Oil: 19,145 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

1,788 BBL/mo

Di (annual)

69.8%

b-factor

0.0

EUR

30,751 BBL

R-squared

0.847

type

exponential

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1PEND OREILLE OIL & GAS CO.115,0001983-02-03
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