CHAPMAN

Oil // district 4 // lease#12180

op: SUN EXPLORATION, INC.

cum_oil

45k BBL

cum_gas

0 MCF

wells

1

production

1993-03 — 2021-10

peak_month

1993-05

-- production_history

cum_oil: 44,605 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

807 BBL/mo

Di (annual)

23.7%

b-factor

0.2

EUR

50,724 BBL

R-squared

0.785

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3COX, EDWIN L.57,0102006-04-27
EOF // data source: Texas Railroad Commission // 2026