Oil Marks First Close Below $90 Since October

Oil futures closed below $90 a barrel Wednesday, pressured amid worries over the potential for a Greek exit from the eurozone and expectations for a positive outcome in talks between global powers and Iran over the oil producer's nuclear program.

July crude settled at $89.90 a barrel on the New York Mercantile Exchange, down $1.95, or 2.1 percent.

That was the first close for a most-active contract below the $90 level since October, according to FactSet Research.