COLUMBUS FIELD UNIT

Oil // district 3 // lease#784

op: OXY USA INC.

fields: COLUMBUS

cum_oil

571k BBL

cum_gas

0 MCF

wells

33

production

1993-01 — 2002-05

peak_month

1996-05

-- production_history

cum_oil: 570,787 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

9,827 BBL/mo

Di (annual)

23.1%

b-factor

0.0

EUR

509,374 BBL

R-squared

0.690

type

exponential

-- wells (33)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
504OXY USA INC.79,7672022-01-31
108 UOXY USA INC.49,8552000-02-18
1704MITCHELL ENERGY CORPORATION18,2802000-01-28
1015 DOXY USA INC.610,4231999-05-17
63 UMITCHELL ENERGY CORPORATION110,1701999-05-07
1012 DOXY USA INC.610,4501999-04-14
1013 DOXY USA INC.610,3001998-12-03
109 UMITCHELL ENERGY CORPORATION18,2801998-07-24
1703 UMITCHELL ENERGY CORPORATION18,6801998-07-07
1021OXY USA INC.410,7001997-08-21
1705OXY USA INC.28,3841997-08-01
105OXY USA INC.18,5521997-05-28
1023 DOXY USA INC.24,3001997-04-18
1023DOXY USA INC.24,3001997-04-18
1014OXY USA INC.48,9501997-01-31
1014 DOXY USA INC.48,9501997-01-31
61OXY USA INC.18,4001996-10-04
1022OXY USA INC.310,7001996-07-16
11 UOXY USA INC.59,8001996-07-08
1102OXY USA INC.28,6021996-02-21
107 UOXY USA INC.210,2521995-10-20
42OXY USA INC.39,6781994-11-15
605 DOXY USA INC.69,5641993-09-20
65 DOXY USA INC.69,5641993-09-20
6OXY USA INC.110,5001992-07-27
604OXY USA INC.110,5001992-07-27
41OXY USA INC.19,3641991-06-03
1707 LOXY USA INC.29,7601991-05-31
1019OXY USA INC.210,4001991-03-08
62 UOXY USA INC.110,2021990-05-29
1002OXY USA INC.29,4981990-01-17
1010 U42-089-00040--------
106D42-089-00302--------
EOF // data source: Texas Railroad Commission // 2026