SURFACE, R. O.

Oil · District 3 · Lease #5622

Operator: TRI-UNION DEVELOPMENT CORP.

Cum Oil

678k BBL

Cum Gas

0 MCF

Wells

2

Production

1993-01 — 2026-03

Peak Month

2007-10

Production History

Cum Oil: 677,645 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

3,164 BBL/mo

Di (annual)

7.3%

b-factor

0.0

EUR

506,716 BBL

R-squared

0.392

type

exponential

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
12AMOCO PRODUCTION COMPANY18,2001980-05-19
1142-039-30038--------
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