WALKER -A-

Oil // district 4 // lease#8722

op: SUN EXPLORATION, INC.

cum_oil

2k BBL

cum_gas

0 MCF

wells

1

production

1993-01 — 2026-03

peak_month

2010-04

-- production_history

cum_oil: 2,399 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

27 BBL/mo

Di (annual)

12.0%

b-factor

0.0

EUR

2,613 BBL

R-squared

0.552

type

exponential

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4COX, EDWIN L.16,5001984-09-27
EOF // data source: Texas Railroad Commission // 2026