STANDARD "D"

Oil // district 8 // lease#28417

op: W&S ENERGY LLC

cum_oil

9k BBL

cum_gas

0 MCF

wells

1

production

1998-02 — 2026-03

peak_month

1998-03

-- production_history

cum_oil: 8,852 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

381 BBL/mo

Di (annual)

118.6%

b-factor

0.7

EUR

10,279 BBL

R-squared

0.569

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4SUNDANCE RESOURCES, INC.14,5001997-12-08
EOF // data source: Texas Railroad Commission // 2026