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A model of oil prices

By | February 29, 2012, 5:00 AM PST

Everyone wants to know why gasoline prices are high, and going higher still, while the U.S. remains in the throes of recession. Yet the usual explanations—threats by and against Iran, inventory levels, speculators, and so on—strangely avoid the most fundamental and obvious reason: supply and demand.

Perhaps this is because getting current data on supply and demand, then making sense of it, can be a challenge. Blaming speculators requires no data literacy. Inventory numbers are easy to get and analyze. And it takes no effort at all to build a story around a headline.

In a decade of studying oil data, I’ve seen these kinds of panics and heard the same misguided interpretations over and over. So I know that if you really want to understand why oil prices are what they are, you need a much more sophisticated model which accounts for supply and demand, along with a great deal of additional complexity. Today I’ll share a conceptual model I created which, while by no means comprehensive, should give you a much better understanding of oil prices both in the past and the future.

But before I do that, I will explain some important concepts for the uninitiated.

Price

The first thing to understand is that oil is a global market. The gasoline prices you see in the U.S. are affected by both domestic and world supply and demand. U.S. data only gives you half the picture.

In the chart above, I have used the benchmark for oil prices known as Brent Crude, a trading classification for various grades of “light sweet” crude that come from the North Sea. Of the more than 150 crude benchmarks, Brent is a reasonably good marker for global oil prices. The U.S. benchmark, known as West Texas Intermediate or WTI, is not a good global price marker because it reflects transportation congestion at its trading point in Cushing, Oklahoma. This congestion has resulted in a local storage glut which depresses its price.

Supply

Oil supply can be characterized in many different ways, and supply data can vary substantially from source to source depending on how it is defined. I recently explained why “peak oil” should be understood as a phenomenon of crude oil only, but in this article I will use the more generally-accepted “all liquids” definition of supply which includes non-oil components such as synthetic liquids made from tar sands, and natural gas liquids associated with crude oil. The supply data in this model comes from the U.S. Energy Information Administration (EIA), mainly because they conveniently offer current, global data in a monthly format, and exclude biofuels.

The most recent supply data is for November 2011, when world oil production was 88.18 million barrels per day (mbpd).

Spare capacity

No matter how strong oil demand is, there is always some amount of “spare capacity,” or the ability to produce more oil at will. Spare capacity can result from oil being too expensive to catch a bid, or from being too “heavy” or “sour” for “simple” refineries to process it, or from producers simply turning off a few taps in order to support prices, or from other exogenous events.

Only Saudi Arabia still has a substantial amount of spare capacity. Exactly how much they have is a state secret, but according to the Paris-based International Energy Agency (IEA), the kingdom had 2.03 mbpd of official spare capacity in January 2012, or about 1 mbpd of realistic spare capacity on a sustained basis. This conflicts with repeated assurances by the state-owned oil company Saudi Aramco that the kingdom currently has about 12 mbpd of total production capacity and is only producing 9 mbpd, giving an implied 3 mbpd of spare capacity, but I don’t take that number at face value and I don’t know of any serious analysts who do.

IEA identifies a smattering of additional spare capacity from other OPEC producers—0.28 mbpd from Kuwait, 0.17 mbpd from Angola, plus smaller amounts elsewhere—to bring the OPEC “effective” spare capacity up to 2.82 mbpd. This total excludes potential spare capacity from Iraq, Nigeria, Venezuela, and Libya due to civil war and other geopolitical considerations that would prohibit new production from coming to market any time soon.

For this model, I am using the OPEC “effective” spare capacity data, which was laboriously compiled from monthly IEA reports by Dow Jones reporter James Herron, to whom I owe a debt of gratitude for sharing it with me. (None of the usual oil data reporting agencies offer a compiled, years-long monthly data series for spare capacity.) But that’s really a notional number, which I have used mainly because I can get the data. The reality could be much worse. Bear in mind that the 3.58 percent of spare capacity you see for November 2011 in the above chart, equivalent to 3.16 mbpd, actually could be a mere 1 mbpd if Saudi Arabia turns out to be the only real swing producer. Indeed, at the OPEC meeting in December, Saudi Oil Minister Ali Al-Naimi told Bloomberg that “there was no excess supply in world crude markets and that his nation had been adjusting output to match fluctuating demand of recent months.”

Outside the OPEC cartel, there isn’t any real spare capacity. Non-OPEC producers, including Russia and the U.S., have been producing flat-out for many years. According to EIA data, non-OPEC production peaked in 2009 at 55.8 mpbd and then declined to 52.7 mbpd in 2011, but still contributes about 60 percent to world oil supply.

In this model I use spare capacity, expressed as a percentage of total world oil supply, as an indicator of how stressed the oil market is.

The model

As you can see in the chart, supply and demand are the fundamental drivers of oil prices. When the balance between supply and demand is tight, the “call on OPEC” rises and spare capacity falls, shown here as the blue line. Generally speaking, spare capacity is inversely related to price.

However, spare capacity doesn’t always have an immediate effect on price. From 2002 through 2004, spare capacity fell sharply from 8 percent of supply to about 2 percent, but oil prices barely budged. It took awhile for the recognition that the market had tightened to sink in. It wasn’t until peak oil arrived at the end of 2004—when the production of global crude oil (only) flattened out below a ceiling of 74 mbpd—and China’s demand simultaneously began its breathtaking ascent, that spare capacity fell into the danger zone below 1 percent. This kicked off a new era of permanently higher prices, and by 2006 the price of crude had tripled to $60 a barrel.

Thus we can postulate that there is a spare capacity threshold at which oil prices suddenly become sensitized. I have drawn it here as a dotted blue line at 2.5 percent of supply, but other levels could be argued as well. (For reference, two and a half percent of global oil supply in November was 2.2 mbpd, just a little more than the current official Saudi spare capacity.) When spare capacity falls below that threshold, prices have tended to rise, and when it rises above that threshold, prices have tended to fall.

I submit that the spare capacity threshold is the most important factor in understanding oil prices. But it is not the only one.

Headline risk

A few of the major events that oil traders and pundits fingered as key drivers of price are shown in dark red callouts on the chart. No doubt they did exert some pressure, both upward (hurricanes and OPEC production cuts) and downward (the financial collapse of 2008). But over time, headline risk is temporary. Once the shocks wear off, the market moves on and starts looking at fundamentals again. Headline risk also tends to be more localized.

For example, consider the effects of Hurricane Katrina, which hit Louisiana on August 29, 2005, and Rita, which hit on September 23. WTI fell by $6.65 from August to November while Brent fell $8.74, perhaps reflecting that the larger concern in the U.S. was about adequate supply after the Gulf Coast systems were knocked offline, whereas in Europe the concern was more about lower demand. As we can see, their effect was temporary as prices resumed their upward trajectory in December. That was dictated by the fundamentals of supply: spare capacity was still below the 2.5 percent threshold.

When spare capacity started rising again, nearly touching the threshold at 2.4 percent in June 2006, the oil rally began to lose steam. By August it was over, and prices fell from $73.23 back to $53.68 in January 2007. Then spare capacity began to fall again, and prices began moving back up. Long before the reality of the financial crisis had entered the public consciousness in 2008, commodity traders had realized that Something Big was happening. The tells were already there in the spare capacity data.

Monetary policy risk

The effect of monetary policy on oil prices is significant, if hard to measure. Eliding that complicated subject for now, I’d just note that two rounds of “quantitative easing”—in which the Federal Reserve printed trillions of U.S. dollars out of thin air to stimulate the economy—have undoubtedly pushed up oil prices. Oil is not only a globally traded commodity, but one that is almost exclusively traded in U.S. dollars. The price of a barrel of oil has to go up when trillions of dollars of new money are suddenly dropped on the market, simply to preserve its value.

This is certainly at least a partial explanation for why oil prices have continued to move up since late 2008 even as spare capacity broke above the threshold. Both QE1 and QE2, as shown on the chart, were followed by sharp increases in oil prices in an era of stable and significant spare capacity.

The narrow ledge

As I explained last week, another important factor is the “narrow ledge” of prices.

Producers generally need at least $60 to $70 a barrel to bring a new barrel of cheap oil capacity (in places like Saudi Arabia) online today. A barrel of new capacity from marginal resources like tar sands, the Bakken and Eagle Ford shales, the Arctic, and ultra-deepwater wells in the Gulf of Mexico or off the coast of Brazil might set you back $80 to $90 a barrel. And that’s just the price producers need to turn a profit. Social welfare obligations of the sort offered by Venezula, and social stability bribes offered in Saudi Arabia and Russia since the dawn of the Arab Spring, increase those nations’ needs for increased oil revenues. That pressure will ultimately, if indirectly, find its way into the price of Brent.

At the same time, there is a limit to how much pain consumers can take. We know that $100 oil (WTI) and $4 gasoline is the kiss of demand death in the U.S. That level corresponds with about $115 for Brent, mainly because they run a far more efficient fleet of vehicles in Europe which travel far shorter distances.

The twin thresholds of the narrow ledge, shown here between $70 and $100 a barrel and starting in 2009, may partially explain why prices have fallen along with spare capacity since April 2011. It may also explain why spare capacity stayed constant just over 6 percent through 2009 and 2010; there was neither sufficient incentive to bring marginal production capacity online, nor was the price low enough to cause supply destruction.

Where oil prices are headed

At this point you are probably wondering why I haven’t mentioned speculation as an important price driver. That’s because I don’t believe it is one. Many hours of studying technical forensic studies on the influence of speculators during the 2008 price spike have revealed their real influence: When spare capacity drops below or rises far above the threshold, it creates tradeable opportunities and speculators rush in. They are probably responsible for only the last 10 to 15 percent of the price in an upward or a downward spike. Everything else can and should be explained according to the principles of the model.

On Monday this week, the London-based Centre for Global Energy Studies revealed that according to its research, oil speculators have been in “hibernation” and that noncommercial speculators (those who trade oil speculatively, rather than on behalf of a refinery) have been moving out of the market since late October. Fundamentals have been driving the market, as Asia continually outbids the West for a declining amount of available exports. U.S. inventory numbers are but a removed indicator of that.

Spare capacity is firmly in the driver’s seat now, and savvy traders are watching it closely. Analysts from Barclays Capital, quoted in the same piece, said that sustainable spare capacity has fallen below 2 mbpd and warned against being on the short side, flagging headline risk. And in October, JP Morgan said: “Our analysis suggests that supply constraints will again be reached by the end of 2013, driving a quarterly rise in our ICE Brent price forecast to $130/bbl.” Morgan’s call was hardly bold; it was backed by over a year of steadily declining spare capacity. It was also a modest price target, as $130 is not far above the $123 peak of April 2011, when official spare capacity was at 4.67 percent—again, the most recent official number we have is 3.58 percent for November.

On the current trajectory, shown in green in the model, spare capacity will break under the 2.5 percent threshold by mid-2012. At that point, if prices fall below $115 due to the narrow ledge restriction, a new price spike will be likely.

So forget about blaming high gasoline and oil prices on speculators, and remember that headline risks are temporary. What we have here is a fundamental supply problem that isn’t going away; in fact, it’s going to get progressively worse as the plateau of oil production ends and turns down into inevitable decline. Prices will repeatedly bump between the floor and ceiling of the narrow ledge, as driven by spare capacity. Unconventional oil from fracked shales will reinforce, not relieve, the pain of high oil prices. The only way out of this junkie’s hell is to get off the needle.

Chart by Chris Nelder

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Chris Nelder

About Chris Nelder

Chris Nelder is a columnist for SmartPlanet.

Chris Nelder

Chris Nelder

Columnist, Energy

Chris Nelder is an energy analyst and consultant who has written about energy and investing for more than a decade. He is the author of two books on energy and investing, Profit from the Peak and Investing in Renewable Energy, and has appeared on BBC TV, Fox Business, CNN national radio, Australian Broadcasting Corp., CBS radio and France 24. He is based in California.

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Chris Nelder

Chris Nelder

Chris may or may not have financial holdings in the companies he writes about at the time of publication, as he is an active investor and trader in equities and ETFs. He also occasionally travels at the expense of companies or their press relations agencies in order to report on a company or industry event related to it. Chris prominently discloses this information when appropriate. These relationships have no influence on his coverage. Companies he covers do not get to review columns in advance, or select or reject topics.

He writes for SmartPlanet, but is not an employee of CBS.

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0 Votes
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Disputation of monetary policy risk.
First, allow me to say that I appreciate writers who take a lot of time and effort to make these sorts of analyses. But I would like to discuss the relationship of quantitative easing and oil prices.

First, quantitative easing was not simply just to nominally lower interest rates, but to also ease the credit crunch, specifically by first buying up mortgage-backed securities from government-sponsored enterprises. Short-term rates dropped, but so did oil prices.

Second, during QE1, there were three other announcements (Dec 16, 2008, January 28, 2009 and March 18, 2009) of support for QE1, via announced purchases of US Treasuries, as an effort to lower rates. So what happened? Oil prices rose from the floor of $33.73 on December 26, 2008, but more importantly, nominal 3-month rates also increased from the floor of .01% reached on December 22, 2008, to a high (during this period) of .32% on February 24, 2009.

Third, QE1 stopped by the end of Q1-2009. But between QE1 and the expectation of QE2 taken from Ben Bernanke's speech at Jackson Hole in late August 2010, 3-month rates dropped on its own.

So in the first case, oil prices diverged from the expected correlation to short-term rates where oil prices dropped even as rates dropped. In the second case oil prices diverged again from the expected correlation to short-term rates where oil prices increased even as short-term rates increased. In the third case, short-term rates correlated to oil price increases, but rates were not influenced by QE, because the QE program had already ended.

I believe markets react to the expectation of the correlation between oil prices and short-term rates. That is to say, oil prices ARE affected by short-term expectations of the movement of rates, but not of the actual movement direction of rates.

But I don't believe prices will continue to go up: Eurozone austerity will come to a head, shortly, and not for the better. Oh, and I should add: I completely agree with the conclusion that the only way out of the madness is to stop the addiction altogether.
Posted by gork platter
Updated - 29th Feb 2012
0 Votes
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Monetary policy risk
@Gork: I don't disagree. Again, I was trying to avoid getting too deep into the extremely complex subject of monetary policy risk here. But I think you are right that its effect is more about expectations than actual rates, which would make it more of a "headline risk" than a sustaining influence. On the other hand, while QE may have "ended" in the sense of fresh money supply, it hasn't actually ended due to rollovers - What Rickards called "perpetual QE." So I suppose one could argue that there is a sustaining price support there, at least until/if that new money supply is actually withdrawn. And the risk of additional EZ QE still looms. Another deep subject for another day. But I really didn't want to get too far off on the monetary policy tangent...
Posted by Chris Nelder
29th Feb 2012
+3 Votes
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Suppy and demand
Chris,

Your articles are always an education in the details of the energy picture. Thank you.

There is a lot of denial out there about petroleum. Whenever I bring up supply and demand in a discussion it seems I always get negative votes. Too many people think there are large sources of supply that haven't been tapped yet. I even have people trying to bring up abiotic oil as if that could replace the supply as fast as we use it. But as you said in the end it always comes down to supply and demand.

One thing I find especially humorous is when politicians imply they can get gasoline prices back down to $2.50 or less per gallon. Someone needs to hit them over the head with a clue stick.
Posted by riverat1
29th Feb 2012
+1 Vote
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Other factors that have an impact.
I would add to your list the regulatory mandates which inflate the price of refined gasoline. The requirement to have different blends in different localities raises the price significantly. The mandate to blend ethanol has an adverse impact for the consumer as well.

Speculation, currently, plays a major role in keeping the price of oil high. The western benchmarks, West Texas Intermediate and Brent Sea Intermediate serve as a major benchmark for the all the other grades. Production of each is only a very small percentage of global production each day and they are delivered only locally for refining. With total production of Brent and WTI only a few billion dollars worth a day. It is quite easy for a small number of traders to bid up the long contracts for a sustained period. If these benchmarks are inflated then every other grade that is priced off the benchmarks will be inflated as well. There is no other way to explain the persistently high prices in the face of falling oil demand and ever increasing production. Eventually, the long positions in Brent and WTI will be unsustainable and prices will collapse.
Posted by Jardinero1
29th Feb 2012
0 Votes
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Evidence?
@Jardinero1, you'll get no argument from me that different local blending requirements contribute to higher gasoline prices in places like California. But if you want to argue that speculation currently plays a major role, then I think you need to show some evidence.
Posted by Chris Nelder
29th Feb 2012
0 Votes
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Price Volatility
Chris, wouldn't it be fair to say that speculation plays a big role in the price volatility of gas, but a quite small role in average price over time?
Posted by Ron Shook
29th Feb 2012
0 Votes
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re: Price Volatility
Ron: Yes, speculators do enhance volatility at the extremes - the highs AND and the lows. Of course, we only hate speculators at the highs. But over time, the fundamental price driver is supply and demand. As I said in the article, there is a decent body of technical research out there on the influence of speculators, if you really want to dive into it (but it's very technical).
Posted by Chris Nelder
29th Feb 2012
0 Votes
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Evidence.
Different blending requirements will result in higher prices for all consumers not just those consumers in the states where the blends differ. Every additional blend, screws up the supply chain for every other blend. Smaller, localized gasoline markets mean fewer refiners participate in them and there is less competition between them. If refiners had but a single national blending requirement there would be a great deal more competition between many more refiners and lower prices, consequently.

I don't have any evidence but the fundamentals, which are that global demand for oil is currently declining and production continues to ramp up. Prices should have broken by now.

I predict that when the longs on WTI and Brent get broken and the shorts take over, the whole price structure will collapse and I don't know where the bottom will be. Last time we went through this in the late eighties the bottom was nine dollars a barrel. Just do me a favor when that happens; don't suddenly change your analysis and say the reason that prices are low and stay low is because the short sellers on WTI and Brent are holding the price down.
Posted by Jardinero1
Updated - 1st Mar 2012
0 Votes
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Not so
Sorry, Jardinero1, it's simply not true to say that global demand for oil is declining and production is rising. Here are some charts
http://omrpublic.iea.org/balances.asp
The only way to make your argument is to cite actual numbers for both oil supply and demand, then examine the balance of net long/short contracts and who holds them. Be sure to include ICE exchange balances, not just NYMEX.
Posted by Chris Nelder
1st Mar 2012
+1 Vote
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Demand cratering
World oil supply is up:

http://omrpublic.iea.org/world/wb_wosup.pdf

Total demand for all products is cratering:

http://omrpublic.iea.org/demand/oc_tp_dg.pdf

Which is why I disagree with their projection for 2012:

http://omrpublic.iea.org/world/wb_wodem.pdf

There is just no way you can reconcile the cratering demand for product in the second chart with the projected demand in the third chart.
Posted by Jardinero1
1st Mar 2012
0 Votes
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World demand is firm
You do realize that you chose a chart for OECD demand only to show that "demand is cratering?" It is not. Here's the world demand chart:
http://omrpublic.iea.org/world/wb_wodem.pdf

The chart you selected shows what I said above: Developing countries, particularly in Asia, are outbidding the West. Global demand has been consistently running just ahead of supply. That's why prices are remaining high. But again, you can just look at the spare capacity data to tell you the same thing.

I think we're done here. You have not shown any data to prove the influence of speculators, which would be found in the exchanges, not aggregate supply/demand data. We have drifted off-topic here. The IEA's projection for 2012 is an entirely different subject.
Posted by Chris Nelder
1st Mar 2012
+1 Vote
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Time will tell
There is a disconnect between the 2011 actual demand for products in http://omrpublic.iea.org/demand/oc_tp_dg.pdf and the IEA projection for oil in 2012 here: http://omrpublic.iea.org/world/wb_wodem.pdf .
You can't have a nearly four percent year over year decline for refined product and project a one percent increase in demand for un-refined product. Those are the fundamentals I refer to and the reason why I question why prices have not broken south.

But you are right, we are drifting off topic. I agree with the rest of your framework. Ultimately, time will tell the rest.
Posted by Jardinero1
Updated - 2nd Mar 2012
-1 Votes
+ -
I always find it a mystery why we tolerate it -
I have the greatest respect for Chris, but I find his failing to discuss the only real controlling factor of oil prices disconcerting - the avg. global cost of producing a barrel of crude. Clearly the cost of a barrel of crude will vary from well to well, from the type of well, depth, technology required and other characteristics of the field and not to mention the age of the field. Even so there is a mathematical global avg. production cost of crude - where is that number?

Ifwe don't have a clue what it cost to produce the over all avg. barrel of crude - we have no way of knowing how badly producers are gouging us. I challenge anyone to provide a credible reference that discusses the actual avg. production costs of crude. The difference between the cost of a barrel of crude and the market price of crude - is an indicator how badly or the not the consumer is being taken advantage of by producers. As recently as 1998 the price of a barrel of crude had dropped to below $13.00/barrel and crude dropped to less than $30/barrel in just 2008. If they could produce it 2008 for $30 a barrel - and demand has fallen since - so why are we paying over a $100 now?

It would seem that these low crude price numbers are a far more accurate indicator of the actual and real cost of crude than any artificial contrivance of market/marketing factors (OPEC cartel), or spare capacity in crude production, or refinery production, or speculators that occur after the crude has been purchased. The avg. production cost of crude sets a base price for the commodity. The price of few essential commodities are allowed to vary 300% by producer manipulation above production cost - diamonds (another cartel manipulated commodity) for example are not essential, but when have you seen the price of wheat triple? It would seem consumers are being remarkably abused - because why... because like most abuses that are caused by the powerful few on the many, it's because they tolerate it. So, where are those global avg. crude production costs?
Posted by dduggerbiocepts
29th Feb 2012
0 Votes
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Production cost
@dduggerbiocepts, I did discuss the production cost here: it's the bottom of the narrow ledge. I am working on a future post about forward production costs that should satisfy you, stay tuned.
Posted by Chris Nelder
29th Feb 2012
+1 Vote
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Is there a bottom line prediction in there somewhere?
Interesting looking model ... is there some useful prediction re: oil prices to be had in there somewhere?

Mr. Nelder seems to be saying oil prices will bounce around $75-$125, with occasional, temporary spikes to higher values. That doesn't seem particularly catastrophic to me...
Posted by James.McMurtry
1st Mar 2012
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