ULS 5-26

Oil · District 10 · Lease #40501

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

78k BBL

Cum Gas

0 MCF

Wells

4

Production

2011-01 — 2026-03

Peak Month

2013-10

Production History

Cum Oil: 77,622 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

1,065 BBL/mo

Di (annual)

23.1%

b-factor

0.0

EUR

55,342 BBL

R-squared

0.747

type

exponential

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4DEVON ENERGY PRODUCTION CO, L.P.111,5002011-05-09
3DEVON ENERGY PRODUCTION CO, L.P.111,5002011-02-14
2HENRY RESOURCES LLC211,4002010-08-27
1HENRY RESOURCES LLC111,0002009-08-12
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