DUDENSING UNIT

Oil · District 11 · Lease #68394

Operator: SCHALK OIL COMPANY, INC.

Cum Oil

151k BBL

Cum Gas

0 MCF

Wells

1

Production

2002-01 — 2016-12

Peak Month

2002-03

Production History

Cum Oil: 151,268 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

3,547 BBL/mo

Di (annual)

29.7%

b-factor

0.0

EUR

143,441 BBL

R-squared

0.916

type

exponential

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1SCHALK OIL COMPANY, INC.15,2002001-12-13
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