ANP -137-

Oil · District 8 · Lease #28331

Operator: RICHEY, RAY MANAGEMENT CO., INC.

Cum Oil

27k BBL

Cum Gas

0 MCF

Wells

1

Production

1997-10 — 2019-12

Peak Month

1998-01

Production History

Cum Oil: 26,632 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

2,594 BBL/mo

Di (annual)

254.5%

b-factor

0.5

EUR

24,029 BBL

R-squared

0.821

type

hyperbolic

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1MITCHELL ENERGY CORPORATION15,4001997-09-17
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