CAMPBELL-HARRINGTON

Oil · District 3 · Lease #23303

Operator: ETOCO, L.P.

Cum Oil

42k BBL

Cum Gas

0 MCF

Wells

1

Production

1997-09 — 2007-11

Peak Month

1997-10

Production History

Cum Oil: 41,534 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

3,871 BBL/mo

Di (annual)

509.6%

b-factor

0.8

EUR

33,664 BBL

R-squared

0.833

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1ETOCO INCORPORATED29,2001997-03-13
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