Nubs - "A second question: If, as Rockman and others say, the storage capacity is only a couple of weeks". First, there is no 'IF': these numbers are documented and take about 60 seconds on the web to verify. Second, don't get sucked in by all that headline BS about "surging" US oil storage. For more then 4 decades since the volume has been monitored oil stocks have not varied greatly. Don't take my word on it: take 30 seconds and check it out for yourself:
http://www.eia.gov/dnav/pet/hist/LeafHa ... rsfus1&f=aIn Nov 2014 we had less oil in storage then we did for much of 2012. Do you recall anyone hyping "surging oil storage" 3 years ago? And go back further in time: last Nov we only 13% more oil in storage then we had in MARCH 1981. Look at the yearly oil stock volume: fairly flat 1980 to 1995. And then prices slid own a bit and stocks stayed a bit lower and level from 1995 to 2005. And the oil prices increased and stocks averaged a bit higher. And it's too early to verify but with the oil price collapse there's a hint in the numbers that stocks might be starting on a decline slope.
And why not build more storage? No problem: get someone to loan you a $100 million so you can add a bunch and then hope like hell there's enough folks who will pay you to store their oil so you can to least meet your interest payments. Consider Cushing, Ok. Folks see it referenced but do they realize it's the largest oil storage facility on the planet? And trivia: the population of Cushing is only 2,000. And no: the SPR doesn't count because it's long term storage...not working storage. So what has happened to storage capacity at Cushing since prices began their run up: 26 million bbl in 2005 and 65 million bbls in 2012 with more than 125 new tanks planned or under construction that year. And the volume swelled at that time thanks to the surge in Canadian imports. But then new pipelines began moving oil out of Cushing to Texas refineries to the tune of more then 1 million bopd. And the value of much of that added storage capacity turned to crap. And yes: it was the coke point at Cushing that oil sands development and not the delay in the Keystone XL pipeline permit.
And don't get confused when some folks start mixing oil stock storage numbers with oil storage CAPACITY numbers: The onshore tanks are barely a third full, with less than 150 million barrels of the nation's total 439 million barrels of shell storage capacity occupied as recently as October, according to a Reuters analysis of U.S. data. That's by far the highest vacancy rate since the EIA began a bi-annual survey of tank farm capacity -- which exclude refinery stocks and oil in pipelines - in 2010. So there's almost 300 million bbls of oil storage sitting empty today. They don't need to build more storage.
So buy some oil, store it, sell it later at a higher price and make a nice profit. Or not: remember first, you have to buy the oil, then pay to ship it to storage, pay a monthly storage fee for as long as it sits there and then pay to ship it to the buyer. And probably have to pay a broker or two along the way. Which is why little oil isn't stored by investors: most is stored by physical oil users.