CHALK-DUNCAN

Oil · District 10 · Lease #41226

Operator: CONOCOPHILLIPS COMPANY

Cum Oil

63k BBL

Cum Gas

0 MCF

Wells

16

Production

2011-12 — 2016-11

Peak Month

2013-08

Production History

Cum Oil: 63,438 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

2,680 BBL/mo

Di (annual)

72.2%

b-factor

0.5

EUR

84,439 BBL

R-squared

0.797

type

hyperbolic

Wells (16)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
15CONOCO INC.13,3001989-05-02
16CONOCO INC.13,3001989-05-02
12CONOCO INC.13,3001988-05-06
10CONOCO INC.13,3001988-05-02
11CONOCO INC.13,3001988-05-02
13CONOCO INC.13,3001988-05-02
14CONOCO INC.13,3001988-05-02
142-227-00985--------
242-227-00988--------
342-227-00986--------
442-227-00990--------
542-227-00991--------
642-227-10551--------
742-227-10552--------
842-227-10553--------
942-227-10674--------
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