A five pound bar of silver would be worth about 723.00 US when silver is at 10.00/ounce... (based on one pound= approx 14.6 troy ounces)

That's about 10.5 barrels of oil, which is about over 550 gallons of crude which would be pretty bulky and would weigh well over 9000 pounds (This including the weight of the steel drums)

In comparison, silver doesn't seem that bulky to me...

5 pounds of silver buys you 9000 pounds of oil in metal drums...