LOCKHART 10

Oil · District 14 · Lease #8569

Operator: PRESIDIO PETROLEUM LLC

Cum Oil

182k BBL

Cum Gas

0 MCF

Wells

2

Production

2011-12 — 2026-03

Peak Month

2012-01

Production History

Cum Oil: 181,937 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

9,031 BBL/mo

Di (annual)

153.0%

b-factor

0.6

EUR

163,546 BBL

R-squared

0.831

type

hyperbolic

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HDAPACHE CORPORATION18,0002012-08-14
4HBGRANITE OPERATING COMPANY17,8002011-07-14
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