LONG UNIT

Oil · District 11 · Lease #69327

Operator: SCHALK OIL COMPANY, INC.

Cum Oil

7k BBL

Cum Gas

0 MCF

Wells

1

Production

2008-10 — 2020-10

Peak Month

2008-12

Production History

Cum Oil: 6,918 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

378 BBL/mo

Di (annual)

200.5%

b-factor

1.1

EUR

12,107 BBL

R-squared

0.838

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1BSCHALK OIL COMPANY, INC.25,3002008-08-29
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