NIELSEN

Oil · District 11 · Lease #65457

Operator: WHITING PETROLEUM CORPORATION

Cum Oil

459k BBL

Cum Gas

0 MCF

Wells

1

Production

1993-01 — 2025-03

Peak Month

2014-08

Production History

Cum Oil: 458,715 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

2,628 BBL/mo

Di (annual)

25.4%

b-factor

0.2

EUR

154,085 BBL

R-squared

0.824

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1ESTORIL PRODUCING CORPORATION113,5001985-05-28
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