MASTERS UNIT

Oil // district 10 // lease#47823

op: CALLON PETROLEUM OPERATING CO

cum_oil

2.2M BBL

cum_gas

0 MCF

wells

8

production

2015-11 — 2026-03

peak_month

2019-10

-- production_history

cum_oil: 2,216,996 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

61,384 BBL/mo

Di (annual)

45.5%

b-factor

0.1

EUR

1,799,260 BBL

R-squared

0.644

type

hyperbolic

-- wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4AHCALLON PETROLEUM OPERATING CO28,5002020-04-15
5AHCALLON PETROLEUM OPERATING CO28,5002020-04-15
8SHCALLON PETROLEUM OPERATING CO28,5002020-04-15
3AHCALLON PETROLEUM OPERATING CO28,0002019-03-19
7SHCALLON PETROLEUM OPERATING CO28,0002019-03-18
2AHCALLON PETROLEUM OPERATING CO28,0002019-03-14
6SHCALLON PETROLEUM OPERATING CO28,0002019-03-13
A 1HBIG STAR OIL & GAS, LLC110,0002015-07-31
EOF // data source: Texas Railroad Commission // 2026