MARSHALL #4

Oil // district 13 // lease#29060

op: WASHAUKEE PETROLEUM

cum_oil

1k BBL

cum_gas

0 MCF

wells

1

production

1995-10 — 2014-09

peak_month

1995-10

-- production_history

cum_oil: 1,224 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

167 BBL/mo

Di (annual)

116.1%

b-factor

0.0

EUR

1,715 BBL

R-squared

0.322

type

exponential

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4DARTEX ENERGY INC12,6001995-02-21
EOF // multi-state drilling data platform // 2026