NEW YORK, Oct. 13 -- Oil prices rose on Monday as Yemen's Iran-backed Houthi movement launched additional strikes on Saudi Arabia, adding to worries about tight global supplies heading into the northern hemisphere winter.

Several powerful explosions rattled the Saudi capital Riyadh on Monday night following a series of Houthi attacks at Riyadh airport in recent days that have killed at least 18 people.

Oil prices rose about 2 per cent, while global equity markets turned in a mixed performance as investors looked ahead to major US corporate earnings and economic data later in the week.

"We're waiting for a lot of elements," CFRA Research's Sam Stovall said near the end of Monday's session, which saw the Dow climb and the Nasdaq retreat....