STILES 68B

Oil · District 14 · Lease #8899

Operator: TAPSTONE ENERGY, LLC

Cum Oil

174k BBL

Cum Gas

0 MCF

Wells

2

Production

2012-12 — 2016-06

Peak Month

2013-01

Production History

Cum Oil: 173,945 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

18,461 BBL/mo

Di (annual)

254.4%

b-factor

0.6

EUR

206,048 BBL

R-squared

0.978

type

hyperbolic

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2668HAPACHE CORPORATION211,0002012-07-16
2568HAPACHE CORPORATION211,0002012-06-29
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