WEBB "A"

Oil // district 11 // lease#62520

op: GRAHAM ROYALTY, LTD.

cum_oil

10k BBL

cum_gas

0 MCF

wells

1

production

1993-01 — 1996-10

peak_month

1993-01

-- production_history

cum_oil: 9,765 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

288 BBL/mo

Di (annual)

14.8%

b-factor

0.0

EUR

23,262 BBL

R-squared

0.515

type

exponential

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1PRIZE OPERATING COMPANY511,5002004-06-01
EOF // data source: Texas Railroad Commission // 2026