Oil prices fall slightly after Israel fends off large-scale aerial attack by Iran

U.S. crude oil futures were slightly lower Sunday as traders breathed a sigh of relief after Israel fended off a large-scale air assault by Iran and the U.S. emphasized it wants to avoid a wider war in the Middle East.

The West Texas Intermediate contract for May lost 34 cents to $85.32 a barrel as trading began Sunday evening. June Brent futures eased slightly to $90.18 a barrel. U.S. crude closed at $85.66 a barrel Friday, while the global benchmark settled at $90.45. WTI futures began the year around $71 a barrel.

Iran launched more than 300 drones and missiles against military targets in Israel on Saturday in an attack that President Joe Biden described as "unprecedented." The U.S. intervened to directly help Israel shoot down nearly all of the incoming munitions, Biden said in a statement Saturday.

Though significant in scale, the Iranian attack caused little actual damage in Israel. The Nevatim Air Force Base in southern Israel suffered slight damage and a 10-year-old girl suffered severe injuries, according Israel Defense Forces spokesman Daniel Hagari.

"The volley of aerial armaments was so easily plucked out of the sky that the whole thing appears well-planned to make a statement without engendering further conflict with Israel," said John Kilduff, energy expert and founding partner at Again Capital.

The crude oil market is now bracing for the Netanyahu government's response to the attack and whether this marks the start of a direct war between Israel and Iran, according to Jorge Leon, senior vice president at Rystad Energy.

"In a worst-case scenario, a forceful retaliation by Israel could trigger a spiral of escalation, potentially leading to an unprecedented regional conflict," Leon said Sunday in a note. "Under