The blue-chip index gained 31.03 factors, or 0.41%, to shut at 7,630.63.
It comes amid rising oil and fuel costs, fuelled by uncertainty available in the market following the escalation of the Israel-Hamas battle.
Analysts identified that if tensions spill over into different elements of the Middle East, then it might have an effect on the worldwide provide of commodities.
Michael Hewson, the chief market analyst at CMC Markets UK, stated: “European markets have started the week cautiously higher in the absence of an escalation of tensions over the weekend, although you can be sure that investors will be keeping a wary eye on events in the Middle East as Israel weighs its next move.
“The FTSE 100 is edging higher helped by resilience in basic resources and energy with Shell seeing its share price hit a new record high.
