CADE-ZINN & FORMAN

Oil // district 3 // lease#23727

op: VAST OIL TX OPERATING LLC

cum_oil

152k BBL

cum_gas

0 MCF

wells

1

production

1999-09 — 2026-03

peak_month

1999-10

-- production_history

cum_oil: 152,204 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,281 BBL/mo

Di (annual)

17.4%

b-factor

0.0

EUR

156,827 BBL

R-squared

0.733

type

exponential

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1SUN EXPL. & PROD. CO.-LAFAYETTE118,3001999-09-14
EOF // data source: Texas Railroad Commission // 2026