WEST RANCH "A"

Oil // district 2 // lease#7607

op: VINTAGE PETROLEUM, LLC

cum_oil

99k BBL

cum_gas

0 MCF

wells

5

production

1993-01 — 2009-05

peak_month

1993-01

-- production_history

cum_oil: 99,035 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,047 BBL/mo

Di (annual)

22.1%

b-factor

0.0

EUR

110,933 BBL

R-squared

0.871

type

exponential

-- wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
336VINTAGE PETROLEUM, INC.96,5532023-02-06
332VINTAGE PETROLEUM, INC.116,3542018-10-26
330VINTAGE PETROLEUM, INC.66,1902015-11-09
299VINTAGE PETROLEUM, INC.56,3252003-12-15
48MOBIL PRODUCING TX. & N.M. INC.76,5801993-09-15
EOF // data source: Texas Railroad Commission // 2026