COLUMBUS FIELD UNIT

Oil // district 3 // lease#23072

op: OXY USA INC.

cum_oil

98k BBL

cum_gas

0 MCF

wells

3

production

1996-07 — 2002-05

peak_month

1996-10

-- production_history

cum_oil: 97,848 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,489 BBL/mo

Di (annual)

28.3%

b-factor

0.0

EUR

105,395 BBL

R-squared

0.448

type

exponential

-- wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1018OXY USA INC.810,8001999-12-13
61OXY USA INC.18,4001996-10-04
1701OXY USA INC.49,8191994-10-04
EOF // data source: Texas Railroad Commission // 2026