LUTHER UNIT

Oil // district 3 // lease#15028

op: UNION PACIFIC AUSTIN CHALK CO.

cum_oil

192k BBL

cum_gas

0 MCF

wells

1

production

1993-01 — 2026-03

peak_month

1995-04

-- production_history

cum_oil: 192,112 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

3,167 BBL/mo

Di (annual)

85.2%

b-factor

0.6

EUR

99,040 BBL

R-squared

0.375

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1WINDSOR PRODUCING CO.39,7001995-02-16
EOF // data source: Texas Railroad Commission // 2026