MATTHEW 'D'

Oil // district 10 // lease#54874

op: LAKE CRYSTAL OPERATING LLC

cum_oil

43k BBL

cum_gas

0 MCF

wells

1

production

2019-09 — 2026-03

peak_month

2019-12

-- production_history

cum_oil: 42,785 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

877 BBL/mo

Di (annual)

26.9%

b-factor

0.0

EUR

39,100 BBL

R-squared

0.487

type

exponential

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
0906CINNABAR OPERATING, LLC311,0002019-12-13
EOF // data source: Texas Railroad Commission // 2026