DUSEK

Oil // district 3 // lease#19186

op: ERNEST OPERATING COMPANY

cum_oil

83k BBL

cum_gas

0 MCF

wells

4

production

1993-01 — 2026-03

peak_month

1993-05

-- production_history

cum_oil: 82,951 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,102 BBL/mo

Di (annual)

45.3%

b-factor

0.9

EUR

84,173 BBL

R-squared

0.849

type

hyperbolic

-- wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4BAR-MAC INVESTMENTS INC.14,3001995-10-10
3BAR-MAC INVESTMENTS INC.14,4001992-10-28
2BAR-MAC INVESTMENTS INC.14,4001992-06-26
1HOLLUB, LAMBERT DRILLING COMPANY14,4001985-08-29
EOF // multi-state drilling data platform // 2026