What is contango and backwardation. What is arbitrage and types of arbitrage. What is important factor of arbitrage apart from price. What does trafigura does. How does it make money. Types of crude oul products. Diesel is heavier or jet fuel. What would be 5 essential things in the contract while you enter into one( price , quantity, dekivery date etc) . How will you hedge selling a oil barrel 3 months from now. What are the risks involved in transfer of goods. In a normal fair market scenario the mkt will be in contango or backwardation