Global Brent prices topped $80 a barrel on Monday for the first time since August, as the risk of an Israeli response to last week’s Iranian missile strike intensified, raising the potential for disruptions to the Middle East region’s oil supplies.

Brent Crude is nearing $80 a barrel amid fears of elevated conflict in the Middle East. Brent Crude futures (CO1:COM) are up $1.23, or 1.57%, to $79.28 a barrel early Monday. Also, WTI crude futures (CL1:COM) are up $1.

The global benchmark closed 3.7% higher on Monday, extending a large weekly gain. West Texas Intermediate traded near $77.