GRINDSTAFF

Oil · District 9 · Lease #12875

Operator: XERIC OIL & GAS CORPORATION

Cum Oil

12k BBL

Cum Gas

0 MCF

Wells

3

Production

1993-01 — 2003-09

Peak Month

1993-01

Production History

Cum Oil: 11,992 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

299 BBL/mo

Di (annual)

70.8%

b-factor

1.1

EUR

20,213 BBL

R-squared

0.351

type

hyperbolic

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6FINLAY ENERGY, INC.24,3002003-08-08
5MIDSTATES OIL COMPANY24,3001993-06-09
4MIDSTATES OIL COMPANY54,4501990-10-22
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