Strategic oil stocks and security of supply

Holding strategic oil stocks is at first sight an obvious tool to address potential disturbances in supplies. Rationally defining the desirable size of stocks and designing rules for their predictable use is an elusive task, however. A key conceptual difficulty arises in the distinction between commercial and strategic stocks, because a physical shortfall in the oil supply will inevitably lead to an increase in prices. But if strategic stocks are utilised when prices increase they become indistinguishable from commercial stocks. This paper reviews the legislation in force in the US and the EU on the use of strategic oil stocks as well as the emergency response systems of the International Energy Agency. It finds that such measures have been activated rarely and in dubious circumstances. Alternative approaches are proposed consisting of encouraging companies and major consumers to hold larger stocks and seeking a cooperative agreement with oil-producing countries for mutually beneficial stock management.

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