WELDER "B"

Oil // district 2 // lease#8575

op: XOG OPERATING LLC

cum_oil

51k BBL

cum_gas

0 MCF

wells

2

production

1999-12 — 2026-03

peak_month

2004-04

-- production_history

cum_oil: 50,557 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,881 BBL/mo

Di (annual)

94.0%

b-factor

0.2

EUR

29,974 BBL

R-squared

0.731

type

hyperbolic

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
11TE-RAY RESOURCES, INC58,5002003-12-03
14ATASCA RESOURCES, INC.38,5002000-06-07
EOF // data source: Texas Railroad Commission // 2026