The recent thread
Crude Oil to surpass $150 per barrel got me thinking about the recent behaviour of oil supply vs price, so I decided to investigate it a little further. Using data from the EIA and IndexMundi I graphed the monthly world and OPEC oil production and average monthly oil price for the last 10 years. I got this:
The first thing that jumps out at me from the graph is that the world’s oil supply really has been on a plateau since at least January, 2005. In that time world production has only varied +/- 2% from 73 mbpd. In the same period, OPEC’s output has varied +/- 5%. This shows that OPEC has more ability to increase and decrease production that the world as a whole, which is no great surprise. What
is surprising that over that period OPECs production has only gone up 0.3%, while world output has risen 1.25%.
Then I calculated the price elasticity of supply (PES) for the world as a whole and OPEC alone, over three periods. The first period is Jan. 2002 to Jan. 2006, and the next is Jan. 2006 to Oct. 2010. This shows the change in the ability of OPEC and the world producers in general to respond to price changes, roughly in the period before the supply hit the plateau and the period since the plateau began. Then I calculated the PES for the period of the price spike, from Jan. 2007 to July 2008.
The values came out like this:
Period World OPEC
2002-2006 0.05 0.09
2006-2010 0.02 -0.03
2007-2008 0.01 0.04
The first thing that's obvious that the oil supply is remarkably inelastic. I think this is what makes it so sensitive to market manipulation – price and supply can get disconnected very easily, as happened during the 07-08 spike.
The second thing is the dramatic change from the period before 2006 to the period since then. The ability of the world’s oil producers to respond to price changes has been cut in half, and OPEC appears to have lost this ability entirely.
During the price spike the world as a whole did not really respond to the rise in prices (in fact ex-OPEC production declined by 2% during that period), and OPEC responded only half as vigorously as during the normal times leading up to it. Part of the reason for this is that it takes longer than a year and a half to put really new supplies on-line, but it also shows that the spare capacity that OPEC touts simply isn't there. Saudi Arabia is no longer a swing producer.
All in all, this is a picture of the world at Peak Oil. Producers are struggling to respond to price signals, and their ability to do so is declining over time. Since 2006 no price movements have resulted in a significant supply change, whether the price change was extreme (2007-2008) or relatively gradual (2006-2010). Both OPEC and the rest of the world are showing undeniable signs of exhaustion.
This situation makes the world extraordinarily vulnerable to price spikes brought on by any of a number of factors, whether they are local supply disruptions, speculation and market manipulation, or geopolitical concerns. We face a bumpy ride in the oil sector from now on.