Oil prices rose more than $1 on Tuesday to a more than seven-year high on worries about possible supply disruptions after Yemen's Houthi group attacked the United Arab Emirates, escalating hostilities between the Iran-aligned group and a Saudi Arabian-led coalition.
The "new geopolitical tension added to ongoing signs of tightness across the market," ANZ Research analyst said in a note.
Brent crude futures rose 85 cents, or 1%, to $87.33 a barrel by 0525 GMT, after earlier hitting a peak of $87.55, their highest since Oct. 29, 2014.
U.S. West Texas Intermediate (WTI) crude futures jumped $1.13, or 1.4%, from Friday's settlement to a more than two-month high of $84.95 a barrel. Trade on Monday was subdued as it was a U.S. public holiday.
