LANE "A"

Oil // district 9 // lease#8517

op: HALLWOOD PETROLEUM, INC.

fields: CALVIN (DEAN)

cum_oil

5k BBL

cum_gas

0 MCF

wells

2

production

1993-01 — 1996-01

peak_month

1993-01

-- production_history

cum_oil: 5,223 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

184 BBL/mo

Di (annual)

14.3%

b-factor

0.0

EUR

15,350 BBL

R-squared

0.521

type

exponential

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2SAXON OIL COMPANY17,9501985-11-26
1SAXON OIL COMPANY17,9001979-11-01
EOF // data source: Texas Railroad Commission // 2026