`EARL WHEAT 765

Oil · District 14 · Lease #7677

Operator: HIGHMARK ENERGY OPERATING, LLC

Cum Oil

67k BBL

Cum Gas

0 MCF

Wells

1

Production

2006-08 — 2026-03

Peak Month

2006-08

Production History

Cum Oil: 66,777 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

3,158 BBL/mo

Di (annual)

99.6%

b-factor

0.5

EUR

73,198 BBL

R-squared

0.873

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6HEOG RESOURCES, INC.19,0002006-06-26
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