HURST B

Oil // district 13 // lease#30338

op: KEY ENERGY OF COLORADO, INC.

cum_oil

396k BBL

cum_gas

0 MCF

wells

1

production

2003-11 — 2026-03

peak_month

2005-01

-- production_history

cum_oil: 396,130 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

10,729 BBL/mo

Di (annual)

53.0%

b-factor

0.0

EUR

243,103 BBL

R-squared

0.617

type

exponential

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
9HKEY ENERGY OF COLORADO, INC.28,5002003-09-04
EOF // data source: Texas Railroad Commission // 2026