TYSON 447

Oil · District 14 · Lease #8542

Operator: HIGHMARK ENERGY OPERATING, LLC

Cum Oil

81k BBL

Cum Gas

0 MCF

Wells

2

Production

2012-05 — 2026-03

Peak Month

2012-05

Production History

Cum Oil: 81,183 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

5,876 BBL/mo

Di (annual)

703.2%

b-factor

1.2

EUR

87,497 BBL

R-squared

0.884

type

hyperbolic

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5HEOG RESOURCES, INC.19,0002012-06-08
4HEOG RESOURCES, INC.19,0002012-01-04
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