ZINN & FORMAN

Oil // district 3 // lease#22995

op: VAST OIL TX OPERATING LLC

cum_oil

7k BBL

cum_gas

0 MCF

wells

1

production

1996-05 — 2026-03

peak_month

1996-08

-- production_history

cum_oil: 7,017 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

602 BBL/mo

Di (annual)

259.1%

b-factor

0.0

EUR

2,796 BBL

R-squared

0.423

type

exponential

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
21SUN EXPL. & PROD. CO.-LAFAYETTE107,9501998-04-15
EOF // data source: Texas Railroad Commission // 2026