HALFF ESTATE "B"

Oil · District 9 · Lease #7647

Operator: COX, JOHN L.

Cum Oil

1k BBL

Cum Gas

0 MCF

Wells

1

Production

1993-01 — 1996-07

Peak Month

1993-05

Production History

Cum Oil: 1,275 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

125 BBL/mo

Di (annual)

383.0%

b-factor

0.5

EUR

718 BBL

R-squared

0.369

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1COX, JOHN L.110,3001978-07-19
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