BLACK POWDER 1-27

Oil // district 10 // lease#42881

op: CIMAREX ENERGY CO.

cum_oil

598k BBL

cum_gas

0 MCF

wells

3

production

2012-03 — 2026-03

peak_month

2013-07

-- production_history

cum_oil: 598,006 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

9,419 BBL/mo

Di (annual)

208.8%

b-factor

1.6

EUR

526,224 BBL

R-squared

0.356

type

hyperbolic

-- wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HCIMAREX ENERGY CO.211,0002012-07-11
1HCIMAREX ENERGY CO.111,4002012-05-19
1027RICHARDSON OPERATING COMPANY219,2691998-10-05
EOF // data source: Texas Railroad Commission // 2026