DEVIN 187

Oil · District 14 · Lease #8604

Operator: HIGHMARK ENERGY OPERATING, LLC

Cum Oil

108k BBL

Cum Gas

0 MCF

Wells

1

Production

2012-01 — 2026-03

Peak Month

2012-02

Production History

Cum Oil: 108,332 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

4,900 BBL/mo

Di (annual)

354.4%

b-factor

0.9

EUR

71,665 BBL

R-squared

0.696

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HEOG RESOURCES, INC.19,0002011-06-08
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