COLUMBUS FIELD UNIT

Oil · District 3 · Lease #20702

Operator: OXY USA INC.

Cum Oil

22k BBL

Cum Gas

0 MCF

Wells

3

Production

1993-01 — 2002-05

Peak Month

1999-12

Production History

Cum Oil: 21,830 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

1,131 BBL/mo

Di (annual)

91.9%

b-factor

0.2

EUR

18,396 BBL

R-squared

0.780

type

hyperbolic

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1026MITCHELL ENERGY CORPORATION110,6001999-05-06
1101OXY USA INC.59,8001996-07-08
62OXY USA INC.110,2021990-05-29
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