GRAHAM UNIT 140-141

Oil // district 10 // lease#56671

op: CALLON PETROLEUM OPERATING CO

cum_oil

777k BBL

cum_gas

0 MCF

wells

3

production

2021-08 — 2026-03

peak_month

2021-11

-- production_history

cum_oil: 776,907 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

59,092 BBL/mo

Di (annual)

208.5%

b-factor

0.8

EUR

1,140,154 BBL

R-squared

0.960

type

hyperbolic

-- wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5HPRIMEXX OPERATING CORPORATION113,0002021-04-09
6HPRIMEXX OPERATING CORPORATION113,0002021-04-09
7HPRIMEXX OPERATING CORPORATION113,0002021-04-09
EOF // data source: Texas Railroad Commission // 2026