NYMEX provides markets for the trading and clearing of crude oil, gasoline, heating oil, natural gas, electricity, propane, coal, uranium, environmental commodities, softs, gold, silver, copper, aluminum, platinum, and palladium. Many different types of options are also available for most of these products, including options on the price differentials between crude oil and its products (crack spreads), various futures contract months (calendar spreads), and European- and Asian-style options...