How long will cheap oil last

Global thirst for crude oil keeps growing, despite the current high prices. Just how much oil does the world have left, and what will happen when demand begins to outstrip supply?

Last month the Paris-based International Energy Agency (IEA) released its World Energy Outlook 2004, a report detailing energy projections to 2030.

The outlook’s central message was optimistic. “The Earth contains more than enough energy resources to meet demand for many decades to come,” Claude Mandil, IEA’s executive director, told assembled press. “The world is not running out of oil just yet.”

However, Mandil also called for urgent policy responses to meet rising energy demand around the world and continued reliance on fossil fuels – issues he labeled “deeply troubling.”

Some experts express even greater concern than Mandil and caution that oil may run short much sooner than the IEA forecasts.

How Much Is Left?

Robert Kaufmann, a professor at Boston University’s Center for Energy and Environmental Studies, said that it is difficult to estimate global oil reserves because data is not always reliable.

“In the U. S. we have very strict requirements for what’s considered a proven reserve,” he said. Such regulation is partially driven by the U. S. Securities and Exchange Commission (SEC), the federal market regulator, because the value of oil-related stocks depends largely on how much oil remains in the ground.

“A lot of the countries on whom we depend [for oil], like Saudi Arabia and Mexico, don’t have strict standards for proven reserves,” Kaufmann said. “Government-owned industries don’t have to satisfy an SEC, and you can’t blame them for not wanting to make that knowledge public. That makes a statistical analysis of the data difficult.”

The IEA has also recognized the problem and called for new, universal

standards to estimate reserves.

Without solid data, forecasts range substantially. And Dan Butler, a market analyst with the U. S. Energy Information Administration, notes that improving technologies can squeeze more oil out of existing reserves. “It’s still a true statement that when you find oil you end up getting only 30 to 35 percent of that oil out of the hole,” he said. “If improving technologies can add another percent to that on a worldwide basis, that’s a big number. That’s a significant number of barrels. We’re clearly not in the park of those that say this decade could see the peak of oil.”

Yet some experts suggest that production capacity could be as limiting as the finite amount of oil available to extract around the world.

“It’s an undeniable fact that there’s a lot of oil under the ground in the Middle East,” said Jim Meyer, director of the Oil Depletion Analysis Centre (ODAC), a London-based nonprofit. “But there have been some very serious questions raised about the ability of the Saudi Arabians, and of the Middle East nations in general, to increase production substantially above current levels. The IEA has suggested that Saudi Arabia can double or triple production over the next 30 years, and that seems an impossibility to many experts.”

Today’s high prices don’t necessarily signify the immediate end of cheap oil. Rather, they reveal an oil production system that is running at full capacity with little surplus, experts say.

“Whenever any factory or system runs at full capacity, prices get tight,” Kaufmann, the Boston University professor, said. “That’s part of the problem, and another problem is worry about existing capacity going offline.”

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How long will cheap oil last