POWELL "21A"

Oil // district 10 // lease#34415

op: VANGUARD PERMIAN, LLC

cum_oil

101k BBL

cum_gas

0 MCF

wells

1

production

1995-02 — 2020-10

peak_month

1995-03

-- production_history

cum_oil: 100,643 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

8,757 BBL/mo

Di (annual)

227.4%

b-factor

0.3

EUR

66,041 BBL

R-squared

0.790

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
23DTREND EXPLORATION COMPANY18,6001994-01-30
EOF // data source: Texas Railroad Commission // 2026