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London's important index, the FTSE 100, closed at a record excessive on Thursday, and the FTSE 250 was boosted by a sharp rise in grocery supply agency Ocado.
The 100 index closed zero.7% higher at 7,787, simply above its earlier excessive level of seven,778 on 12 January.
The oil price hit $80 a barrel for the primary time since 2014, boosting shares in BP, Royal Dutch Shell, and Tullow.
Ocado's share price jumped 44% after it struck a deal to share its software program with American retailer Kroger.
The FTSE 250 closed zero.9% higher at 21,019.
Laith Khalaf, Senior Analyst, Hargreaves Lansdown stated a constructive market pattern for the reason that finish of March had not but run its course.
"The death of the bull market has been greatly exaggerated," he stated.
"The FTSE did endure a shaky start to the year, but after two months of steady climbing, has now regained and surpassed its previous high."
The oil price has risen over current days following elevated rigidity within the Middle East, expectations that Iran's entry to the vitality market can be restricted by renewed sanctions, and hassle in Venezuela.
Last week's choice by the Bank of England to go away rates of interest on maintain has additionally given shares further momentum.
Elsewhere in London buying and selling, Mothercare shares additionally rose, after the troubled retailer introduced its restructuring plan.
The plan, which entails closing 50 shops, boosted Mothercare shares by 24%.