BLALOCK A

Oil · District 10 · Lease #39750

Operator: XTO ENERGY INC.

Cum Oil

102k BBL

Cum Gas

0 MCF

Wells

4

Production

2009-10 — 2026-03

Peak Month

2014-05

Production History

Cum Oil: 101,655 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

1,342 BBL/mo

Di (annual)

27.8%

b-factor

0.0

EUR

57,919 BBL

R-squared

0.449

type

exponential

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4814BERRY OIL COMP.112,0002012-07-10
4802PIEDRA OPERATING, LLC211,5002012-03-05
4803BERRY OIL COMP.112,0002011-12-21
4811PIEDRA OPERATING, LLC111,0002009-08-03
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