CRAZY HORSE UNIT

Oil · District 3 · Lease #23386

Operator: UNION PACIFIC RESOURCES COMPANY

Cum Oil

294k BBL

Cum Gas

0 MCF

Wells

2

Production

1997-11 — 2026-03

Peak Month

1997-12

Production History

Cum Oil: 294,055 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

13,249 BBL/mo

Di (annual)

73.4%

b-factor

0.4

EUR

355,396 BBL

R-squared

0.574

type

hyperbolic

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2ENERVEST OPERATING, L.L.C.113,0002008-03-26
1UNION PACIFIC RESOURCES COMPANY112,6001997-09-09
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