Diesel futures roared to their highest in nearly two years Friday on a continued shortage of heating oil in the Northeast, while crude oil weakened as traders turned toward safer investments. Light, sweet crude for March delivery settled down 74 cents, or 0.8%, at $97.49 a barrel on the New York Mercantile Exchange. Prices rose 0.9% this week but fell for the month. Brent crude on the ICE futures exchange fell $1.55, or 1.4%, to $106.40 a barrel. Prices fell 1.4% this week and 4% this month. Front-month February diesel futures finished up 6.24 cents, or 1.9%, at $3.2794 a gallon, the highest price since March 16, 2012. Diesel futures, which trade as a proxy for heating oil, […]