LOCKHART 1001

Oil · District 14 · Lease #8927

Operator: HIGHMARK ENERGY OPERATING, LLC

Cum Oil

79k BBL

Cum Gas

0 MCF

Wells

1

Production

2013-09 — 2026-03

Peak Month

2013-10

Production History

Cum Oil: 79,279 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

1,119 BBL/mo

Di (annual)

19.0%

b-factor

0.0

EUR

70,407 BBL

R-squared

0.412

type

exponential

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HEOG RESOURCES, INC.19,0002013-05-14
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