MATHIS "A"

Oil // district 11 // lease#63031

op: PARKER & PARSLEY DEVELOPMENT L.P

cum_oil

19k BBL

cum_gas

0 MCF

wells

1

production

1993-01 — 2010-01

peak_month

1993-09

-- production_history

cum_oil: 18,749 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

240 BBL/mo

Di (annual)

9.6%

b-factor

0.0

EUR

29,910 BBL

R-squared

0.449

type

exponential

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1MGF OIL CORPORATION29,5002026-01-21
EOF // data source: Texas Railroad Commission // 2026