MATTKE, O.

Oil · District 1 · Lease #13121

Operator: SEGURO WELL SERVICE, INC.

Cum Oil

223 BBL

Cum Gas

0 MCF

Wells

1

Production

1993-01 — 1998-09

Peak Month

1993-03

Production History

Cum Oil: 223 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

72 BBL/mo

Di (annual)

366.7%

b-factor

0.2

EUR

287 BBL

R-squared

0.919

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1ROLLERT CO., INC., THE22,9901991-05-23
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