R & L UNIT

Oil · District 3 · Lease #23440

Operator: XTO ENERGY INC.

Cum Oil

20k BBL

Cum Gas

0 MCF

Wells

1

Production

1997-09 — 2012-10

Peak Month

1997-10

Production History

Cum Oil: 20,031 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

823 BBL/mo

Di (annual)

68.6%

b-factor

0.4

EUR

23,575 BBL

R-squared

0.822

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1 HGEODYNAMICS OIL & GAS, INC.212,0001997-07-02
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