ZIFFLE, ARNOLD

Oil · District 10 · Lease #34793

Operator: COSTILLA PETROLEUM CORPORATION

Cum Oil

16k BBL

Cum Gas

0 MCF

Wells

2

Production

1995-12 — 2000-03

Peak Month

1996-10

Production History

Cum Oil: 16,305 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

3,059 BBL/mo

Di (annual)

469.2%

b-factor

0.2

EUR

9,864 BBL

R-squared

0.831

type

hyperbolic

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1OVINTIV USA INC.59,9502020-11-04
2COSTILLA PETROLEUM CORPORATION19,0001996-02-06
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