PYBURN-ZOCH "A" UNIT

Oil · District 3 · Lease #21779

Operator: UNION PACIFIC RESOURCES COMPANY

Cum Oil

119k BBL

Cum Gas

0 MCF

Wells

2

Production

1993-01 — 2026-03

Peak Month

2006-05

Production History

Cum Oil: 119,287 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

2,456 BBL/mo

Di (annual)

288.3%

b-factor

1.4

EUR

91,082 BBL

R-squared

0.562

type

hyperbolic

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1UNION PACIFIC RESOURCES COMPANY417,0002006-03-23
1REUNION PACIFIC RESOURCES COMPANY417,0002006-03-23
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