WALTERSCHEID

Oil · District 13 · Lease #18659

Operator: CHOLLA PETROLEUM, INC.

Cum Oil

10k BBL

Cum Gas

0 MCF

Wells

1

Production

1993-01 — 1998-05

Peak Month

1993-02

Production History

Cum Oil: 9,789 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

442 BBL/mo

Di (annual)

66.3%

b-factor

0.0

EUR

7,990 BBL

R-squared

0.655

type

exponential

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1L & M OIL CO.13001977-10-31
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