Oseberg Sor platform
Oseberg Sor platform in North Sea. The author asserts that the Oseberg oil field peaked in 1994 and is depleting at 11.9 percent annually.

Peak Oil 2010

The North Sea oil fields as a model for global oil depletion

By Roger Blanchard

Reprinted from Association for the Study of Peak Oil USA weekly newsletter

I’ve studied the oil supply issue for at least two decades. Over the years I’ve read numerous books that deal with what the books describe as an impending oil supply crisis. Being an analytical chemist, I was troubled that the books provided little, if any, data to support their contentions. I became frustrated enough with the situation that I wrote my own book. What I attempted to do in the book was to dissect the oil production of the world’s significant oil producing countries to illustrate why it is valid to predict that global oil production is likely to peak in approximately 2010.

For the sake of consistency, I have been predicting that global oil production would peak in ~2010 since at least 1995. I also provide scientific reasons to explain why conventional oil is so important to our present society and why it will not be as easy to replace as is generally accepted. Oil supply optimists, such as Michael Lynch and Daniel Yergin, base their optimism for increasing future global oil production on reserves estimates provided in Oil & Gas Journal and World Oil, as well as results from the most recent global oil resource assessment by the U.S. Geological Survey (USGS). I provide detailed data/information on why reserves figures are essentially worthless and why the USGS assessment is seriously flawed.

To give you a feel for the book, I’ve extracted an excerpt from the chapter "Oil Production in Western Europe". I’ve been particularly interested in oil production from the North/Norwegian Seas for a long time and I wrote a paper in 1999 on North Sea oil production, which can still be found on the Internet ("The Impact of Declining Major North Sea Oil Fields Upon Future North Sea Production"). At the time, I predicted that United Kingdom oil production (crude oil + condensate) would peak in 1999 and Norwegian oil production would peak in 2001 (see table). By comparison, at the time the U.S. Department of Energy/Energy Information Administration (US DOE/EIA) was predicting a peak for the U.K. in ~2006 and for Norway in 2005. As it turned out, U.K. oil production peaked in 1999 and Norwegian production peaked in 2001. In 2005, U.K. oil production was down to 1.649 million b/d (US DOE/EIA), a 38.6% decline from peak, and Norwegian production was down to 2.78 million b/d (NPD), a 15.8% decline from peak.


US EIA (1999)

Blanchard (1998)

Actual date of

EIA : production*

Blanchard: production at

Actual production at

Peak date projected

Peak date projected

Peak production

at peak date (projected)

Peak date (projected)

Peak date**





3.3 mmb/day

2.7 mmb/day

2.684 mmb/day





3.9 mmb/day

3.2 mmb/day

3.30 mmb/day

* Production forecast excluded natural gas liquids and processor gain. ** UK data based on US DOE/EIA; Norwegian data from Norwegian Petroleum Directorate

In my book, I detail both U.K. and Norwegian oil production and the following is a section concerning Norwegian oil production:

The US DOE/EIA makes the following interesting statement in their IEO2003 (International Energy Outlook 2003):

"In the IEO2003 forecast, the decline in North Sea production is slowed as a result of substantial improvement in field recovery rates. Production from Norway, Western Europe’s largest producer, is expected to peak at about 3.4 million barrels per day in 2004 and then gradually decline to about 2.5 million barrels per day by the end of the forecast period [2025] with the maturing of some of its larger and older fields."15

As Figure 10 (a graph of summed production for the Statfjord, Gullfaks and Oseberg fields in which production peaked in 1994 at ~1.6 million b/d and declined to 0.456 mb/d in 2003) and Table 2 (a table detailing the decline of major Norwegian oil fields) illustrate, the statement suggests that the US DOE/EIA isn’t aware of what’s happening in Norway’s oil fields and, quite likely, in fields throughout the world. Decline rates for many Norwegian fields are comparable to U.K. fields, 10-20%/year. The Statfjord field has declined at an average rate of 12.1%/year since 1992, the Gullfaks field 13.5%/year since 1994 and the Oseberg field 11.9%/year since 1994.

The US DOE/EIA makes their projections of future oil production rates based upon the global petroleum assessments by the USGS. If the future production profile shown in Figure 14 (my projection of future Norwegian oil production) is reasonably accurate (which it is up to this point), the unusually high forecast by the US DOE/EIA suggests a serious flaw in the USGS assessment for Norway and possibly the world.

I believe a detailed understanding of the production histories of the U.S. and the North/Norwegian Seas are important in making predictions for future global oil production. As much as promoters of oil development on federal lands and waters would like to think otherwise, the long-term trend for U.S. oil production is down even if every remaining acre of the U.S. is opened to oil production. The same is true for the North/Norwegian Seas and an increasing number of other regions of the world. Rapid and intense oil development of the Campos Basin (Brazil), deepwater Gulf of Mexico, deepwaters off West Africa, Russia and the Caspian Sea should cause global oil production to increase for a few more years, but production increases in those regions will be followed by fairly rapid production declines. Although many people believe that OPEC nations have immense remaining volumes of oil that can be rapidly tapped, most OPEC nations have little latitude to significantly increase their oil production rates. I continue to predict a global oil production peak in approximately 2010. We will soon find out.

Roger Blanchard, author of the book "The Future of Global Oil Production" (McFarland & Company) is a chemistry instructor at Lake Superior State University.

Times Article Viewed: 16243
Published: 12-Jun-2006


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