RIGGAN "B"

Oil // district 11 // lease#67245

op: VOSKAMP EXPLORATION, INC.

cum_oil

17k BBL

cum_gas

0 MCF

wells

2

production

1994-03 — 1996-11

peak_month

1994-11

-- production_history

cum_oil: 16,622 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,087 BBL/mo

Di (annual)

139.7%

b-factor

0.4

EUR

15,342 BBL

R-squared

0.913

type

hyperbolic

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1VOSKAMP EXPLORATION, INC.26,2002000-05-05
2VOSKAMP EXPLORATION, INC.15,8001994-02-02
EOF // data source: Texas Railroad Commission // 2026