OLDHAM TRUST WEST

Oil // district 10 // lease#49790

op: SURGE OPERATING, LLC

cum_oil

2.5M BBL

cum_gas

0 MCF

wells

11

production

2017-10 — 2026-03

peak_month

2024-01

-- production_history

cum_oil: 2,478,360 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

105,480 BBL/mo

Di (annual)

180.8%

b-factor

0.7

EUR

1,943,312 BBL

R-squared

0.992

type

hyperbolic

-- wells (11)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5MHSURGE OPERATING, LLC18,5002023-06-22
4AHSURGE OPERATING, LLC18,5002023-06-02
4SHSURGE OPERATING, LLC18,5002023-06-02
5AHSURGE OPERATING, LLC18,5002023-06-02
5SHSURGE OPERATING, LLC28,5002023-06-02
6AHSURGE OPERATING, LLC28,5002023-06-02
2AHSURGE OPERATING, LLC29,2002022-04-28
1SHSURGE OPERATING, LLC19,2002022-04-26
3871WAGRENADIER ENERGY PARTNERS II,LLC115,0002018-01-30
4058LSSURGE OPERATING, LLC215,0002018-01-30
4051WAGRENADIER ENERGY PARTNERS II,LLC115,0002017-05-31
EOF // data source: Texas Railroad Commission // 2026