PYBURN-ZOCH UNIT

Oil · District 3 · Lease #21376

Operator: UNION PACIFIC RESOURCES COMPANY

Cum Oil

22k BBL

Cum Gas

0 MCF

Wells

1

Production

1993-01 — 2004-07

Peak Month

1993-01

Production History

Cum Oil: 22,497 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

1,549 BBL/mo

Di (annual)

277.3%

b-factor

0.9

EUR

27,893 BBL

R-squared

0.926

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1UNION PACIFIC RESOURCES COMPANY414,0001992-09-14
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