CHRISTOPHER -38-

Oil · District 10 · Lease #28537

Operator: PERMIAN RESOURCES, INC.

Cum Oil

109k BBL

Cum Gas

0 MCF

Wells

3

Production

1993-01 — 2011-01

Peak Month

1993-05

Production History

Cum Oil: 109,364 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

854 BBL/mo

Di (annual)

5.6%

b-factor

0.2

EUR

189,576 BBL

R-squared

0.556

type

hyperbolic

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4MOBIL PRODUCING TX. & N.M. INC.16,5001984-05-21
5MOBIL PRODUCING TX. & N.M. INC.16,5001984-05-21
3MOBIL PRODUCING TX. & N.M. INC.17,0001983-08-24
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