Oil prices jumped on news that a Malaysia Airlines passenger plane went down in eastern Ukraine , as traders worried the crash could become a potential flash point that presented another threat to global crude supplies. Israel’s decision to send ground troops into the Gaza Strip also lent support to prices, which in recent weeks have been bolstered by flare-ups in the Middle East, the world’s biggest oil-producing region. U.S. oil futures closed $1.99, or 2%, higher at $103.19 a barrel on the New York Mercantile Exchange. That’s the largest one-day dollar and percentage gain since June 12, when Islamists launched an uprising in Iraq. Prices continued to climb after the close of the regular trading session, recently hitting an intraday high of $103.61. Oil prices are at their highest in more than a week. Some traders said they were inundated with buy orders as news of the plane […]