HURST C

Oil // district 13 // lease#30168

op: KEY ENERGY OF COLORADO, INC.

cum_oil

1.5M BBL

cum_gas

0 MCF

wells

1

production

2002-10 — 2026-03

peak_month

2010-01

-- production_history

cum_oil: 1,469,945 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

10,525 BBL/mo

Di (annual)

46.4%

b-factor

0.3

EUR

386,083 BBL

R-squared

0.704

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5HKEY ENERGY OF COLORADO, INC.39,0002002-07-23
EOF // data source: Texas Railroad Commission // 2026