SANDERS 391

Oil · District 14 · Lease #8582

Operator: HIGHMARK ENERGY OPERATING, LLC

Cum Oil

169k BBL

Cum Gas

0 MCF

Wells

1

Production

2011-04 — 2026-03

Peak Month

2011-07

Production History

Cum Oil: 169,195 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

12,133 BBL/mo

Di (annual)

221.7%

b-factor

0.7

EUR

185,385 BBL

R-squared

0.966

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HEOG RESOURCES, INC.19,0002011-02-15
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