SIEBER

Oil · District 10 · Lease #38054

Operator: MARSHALL & WINSTON, INC.

Cum Oil

38k BBL

Cum Gas

0 MCF

Wells

1

Production

2006-12 — 2026-03

Peak Month

2007-07

Production History

Cum Oil: 37,742 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

782 BBL/mo

Di (annual)

65.9%

b-factor

0.8

EUR

40,076 BBL

R-squared

0.751

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1MARSHALL & WINSTON, INC.26,5002006-07-07
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