CHALK -A-

Oil · District 10 · Lease #41129

Operator: SWEET CRUDE OPERATING LLC

Cum Oil

124k BBL

Cum Gas

0 MCF

Wells

10

Production

2011-12 — 2026-03

Peak Month

2016-06

Production History

Cum Oil: 124,235 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

1,136 BBL/mo

Di (annual)

13.7%

b-factor

0.6

EUR

164,779 BBL

R-squared

0.815

type

hyperbolic

Wells (10)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
11EXCEL ENERGY CO.37,4752005-10-24
10CALLEY, BOB12,6001987-08-24
9CALLEY, BOB13,1001986-12-16
8CALLEY, BOB13,1001986-08-14
142-227-00163--------
242-227-04330--------
342-227-02479--------
542-227-02478--------
642-227-02481--------
742-227-30036--------
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