The present contango in oil prices bears all the hallmarks of an oil market where supplies are well above present fundamental physical consumption.

The recent large inventory build of petroleum, under a steep contango which now is flattening, within the big oil consumers (like the OECD countries and China) have left some with the expectation that major economies soon will begin to grow again, and that the contango now signals increased oil demand and higher oil prices in the future.

My analysis indicates that in recent months, as much as 2 -3 Mb/d of global petroleum supply has been used to build inventories. This is about to come to an end, because available storage is getting closer and closer to full and contango has begun to flatten. When additions to storage cease, the resulting drop in demand can be expected to lead to substantial downward pressure on oil prices.

The chart above shows one component of inventories--US inventories. The chart indicates that US oil inventories (green) have been increasing since after the September 2008 hurricanes, and, in fact, started increasing as early as May 2008. Brent oil prices (red) decreased between June and December, but recently have been slightly increasing.

Below the fold I give a summary of US, OECD and China petroleum inventories, inclusive of oil stored on tankers, and indicate what I expect will happen to near term oil prices.

It seems as though I have inhabited two different worlds in the past 24 hours. I went from the relatively small (500 folk) meeting in Sacramento where Peak Oil is viewed as imminent, to the halls of the Convention Center in Las Vegas, where the Quadrennial MinExpo is showcasing the latest machines to over 41,000 folk involved in the Mining Industry. It overflows that very large (600,000 sq. ft) building and extends out into the parking lot. Here, with an industry in considerable profit, the displays were large and much more optimistic than I have seen them in previous years. The two meetings were, however, joined by a common complaint that the human resource, the engineers and scientists needed by both communities, are in critically short supply.

Wandering the booths, with only one day to catch all the new and different products, I did come across a couple of items that are, I believe, worth a brief comment before I write a concluding post to wrap ASPO-USA 4. In that post, I will give some of my own interpretation of the conference.

Annual production of cement by country in billions of metric tons. Click to expand. Source: USGS 2006 report (PDF) and the USGS 2008 report (PDF).

Cement is mainly used to make concrete, and is sort of the "active ingredient" in concrete - it is combined with sand and gravel in roughly fixed proportions. So cement production can be considered a rough proxy for the total amount of construction going on in a country.

This post updates Stuart's post about this two years ago (and yes, it's still a graph that will blow you away!) with two more years of USGS cement data, 2006 and 2007. The growth in China, from 1 GT to 1.3 GT in two years is mindboggling, even India and Russia are interesting...and there's more to think about under the fold.

edited to add: As a couple of folks pointed out--I have interchanged "production" and "usage" in this post incorrectly--however, China's 2007 cement exports were only 33 million tons out of 1.3 billion tons produced. So, at least for China, production is a good proxy for demand/consumption. My apologies for the mistake.

A week or so ago I wrote about the power supply debate going on in New England, with the controversy over the wind farm to be sited in the waters off Cape Cod. In that post I commented on the fact that, in response to an energy shortage that had appeared in 2004, the area had ensured additional supplies of LNG, and had converted some power stations so that, instead of relying on natural gas, they could also burn oil. The advantage of oil in this particular case is that it is somewhat more easily stored and thus is accessible when the gas lines are not available.

However I skated around the issue as to what would happen if there were neither oil nor gas available. This is not, unfortunately, a theoretical exercise. Chris Skrebowski has projected a supply shortfall by 2012. Yet already in India power plants are being idled because they cannot get enough LNG. And as for the supplies of oil, the likelihood of us being past peak by 2012 is increasingly real. So, that being the case, where can one look for alternate fuel. As articles in the New York Times and in the Washington Post have noted, for most of the rest of the world the short-term answer would appear to be from coal.