LONG

Oil · District 11 · Lease #69854

Operator: SCHALK OIL COMPANY, INC.

Cum Oil

19k BBL

Cum Gas

0 MCF

Wells

1

Production

2012-01 — 2024-09

Peak Month

2012-02

Production History

Cum Oil: 19,415 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

993 BBL/mo

Di (annual)

138.4%

b-factor

0.7

EUR

23,307 BBL

R-squared

0.892

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4ASCHALK OIL COMPANY, INC.15,4002011-11-04
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