BARBARA

Oil · District 10 · Lease #32733

Operator: STEPHENS, AUTRY C.

Cum Oil

27k BBL

Cum Gas

0 MCF

Wells

6

Production

1993-01 — 2006-08

Peak Month

1993-01

Production History

Cum Oil: 27,326 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

923 BBL/mo

Di (annual)

48.9%

b-factor

0.3

EUR

32,059 BBL

R-squared

0.882

type

hyperbolic

Wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6DURHAM, INC.14,1001993-03-02
5DURHAM, INC.14,1001992-11-10
4DURHAM, INC.14,1001991-07-16
3DURHAM, INC.14,1001990-09-21
2DURHAM, INC.14,1001990-02-16
1DURHAM, INC.14,1001990-02-13
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