Hi i have some questions concerning oil futures. nymex light sweet crude 1. how is the inbuilt leverage like? for example for a $60 nymex contract what is the amount you need to put up as the futures margin? 2. What kind of contract peroids up there? example is there a monthly contract(futures contract that last one month) a 9 year contract ? a 3 year contract(36 months?) 3. what is the risk in buying oil futures? 4. apart from investing in oil stocks and oil futres how do you invest if your bullish on oil? 5.my broker says there is a very long term contract, however he says the price is a preminium( higher)($120 when oil is currently $60) is that true?