. Because the United States has an abundant supply of coal, Neeleman is urging his customers to support a new bill to fund additional coal-to-liquid plants. Airlines engage in fuel hedging in order to manage unpredictable costs. However, the jet fuel commodities market is illiquid, and it is especially difficult for the large airlines to hedge sufficient quantities of fuel. JetBlue is increasing its efforts to systematically hedge against future fuel needs. JetBlue also seeks more efficient fuel usage through the planes purchased and improved flight planning.