MCKINNEY-HERNSTADT

Oil // district 13 // lease#33271

op: CHOLLA PETROLEUM, INC.

cum_oil

155k BBL

cum_gas

0 MCF

wells

1

production

2015-02 — 2026-03

peak_month

2016-05

-- production_history

cum_oil: 154,742 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,007 BBL/mo

Di (annual)

16.1%

b-factor

0.0

EUR

149,247 BBL

R-squared

0.556

type

exponential

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1BLACKWELL EXP & DEVELOPMENT, LLC112,0002014-10-10
EOF // data source: Texas Railroad Commission // 2026