DOCKERY "A"

Oil · District 13 · Lease #21780

Operator: BURK ROYALTY COMPANY

Cum Oil

19k BBL

Cum Gas

0 MCF

Wells

4

Production

1993-01 — 2011-09

Peak Month

1995-04

Production History

Cum Oil: 18,947 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

287 BBL/mo

Di (annual)

55.1%

b-factor

0.9

EUR

18,953 BBL

R-squared

0.680

type

hyperbolic

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4BURK ROYALTY COMPANY16,5001984-10-23
3BURK ROYALTY COMPANY16,5001984-05-11
2BURK ROYALTY COMPANY16,6001984-03-28
1BURK ROYALTY COMPANY27,0001984-02-28
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