New York Mercantile ExchangeNYMEX site provides current and historical market data on futures and options for contracts traded by Exchange including crude oil, gasoline, heating oil, natural gas, electricity, gold, silver, copper, aluminum, and platinum; futures contracts for coal, propane, and palladium; and options contracts on the price differentials between crude oil and gasoline, crude oil and heating oil, and various futures contract months (calendar spreads) for light, sweet crude; Brent crude oil; gasoline.