JOHNSON, NAT

Oil · District 1 · Lease #12861

Operator: VERMILLION PRODUCTION, INC.

Cum Oil

28k BBL

Cum Gas

0 MCF

Wells

1

Production

1993-01 — 2012-06

Peak Month

2006-09

Production History

Cum Oil: 27,801 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

438 BBL/mo

Di (annual)

316.2%

b-factor

2.0

EUR

27,969 BBL

R-squared

0.427

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1TEXSTAR NORTH AMERICA, INC.15,8501990-09-21
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