ZANT B

Oil · District 10 · Lease #41099

Operator: XTO ENERGY INC.

Cum Oil

75k BBL

Cum Gas

0 MCF

Wells

2

Production

2011-03 — 2026-03

Peak Month

2011-06

Production History

Cum Oil: 74,867 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

4,122 BBL/mo

Di (annual)

113.7%

b-factor

0.4

EUR

71,918 BBL

R-squared

0.318

type

hyperbolic

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3703PIEDRA OPERATING, LLC111,0002011-02-28
3708PIEDRA OPERATING, LLC211,0002009-07-08
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