HALFF ESTATE "D"

Oil · District 9 · Lease #16222

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

33k BBL

Cum Gas

0 MCF

Wells

1

Production

2007-04 — 2026-03

Peak Month

2007-05

Production History

Cum Oil: 32,699 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

616 BBL/mo

Di (annual)

39.0%

b-factor

0.4

EUR

30,383 BBL

R-squared

0.565

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2JM COX RESOURCES, L.P.110,4002007-02-23
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