DUFF, A. H. ESTATE

Oil · District 9 · Lease #7973

Operator: UNION PACIFIC RESOURCES COMPANY

Cum Oil

55k BBL

Cum Gas

0 MCF

Wells

6

Production

1993-01 — 2026-03

Peak Month

1993-02

Production History

Cum Oil: 55,479 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

337 BBL/mo

Di (annual)

7.5%

b-factor

0.0

EUR

52,916 BBL

R-squared

0.629

type

exponential

Wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
8TREK RESOURCES, INC.26,8002006-08-31
6CHAMPLIN PETROLEUM CO.37,0001983-05-16
7CHAMPLIN PETROLEUM CO.17,0001980-04-08
5CHAMPLIN PETROLEUM CO.17,0001980-01-24
4CHAMPLIN PETROLEUM CO.17,0001979-11-26
2CHAMPLIN PETROLEUM CO.17,0001979-07-24
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