CASCADE "D"

Oil // district 10 // lease#40632

op: GRACE PETROLEUM OPERATING, LLC

cum_oil

16k BBL

cum_gas

0 MCF

wells

1

production

2010-06 — 2026-03

peak_month

2014-10

-- production_history

cum_oil: 16,112 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

98 BBL/mo

Di (annual)

5.2%

b-factor

0.0

EUR

20,779 BBL

R-squared

0.325

type

exponential

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1BROWN, H.L. OPERATING, L.L.C.37,1002002-12-31
EOF // data source: Texas Railroad Commission // 2026