The Biden administration on March 31, 2022, said it plans to release an unprecedented 180 million barrels of oil from the U.S. Strategic Petroleum Reserve to combat the recent spike in gas and diesel prices. About a million barrels of oil will be released every day for up to six months.
As an energy researcher, I believe considering the reserve’s history can help answer these questions.
Origins of the reserve
Congress created the Strategic Petroleum Reserve as part of the Energy Policy and Conservation Act of 1975 in response to a global oil crisis.
Arab oil-exporting states led by Saudi Arabia had cut supply to the world market because of Western support for Israel in the 1973 Yom Kippur War. Oil prices quadrupled, resulting in major economic damage to the U.S. and other countries. This also shook the average American, who had grown used to cheap oil.
The oil crisis caused the U.S., Japan and 15 other advanced countries to form the International Energy Agency in 1974 to recommend policies that would forestall such events in the future. One of the agency’s key ideas was to create emergency petroleum reserves that could be drawn on in case of a severe supply disruption.
The Energy Policy and Conservation Act originally stipulated the reserve should hold up to 1 billion barrels of crude and refined petroleum products. Though it has never reached that size, the U.S. reserve is the largest in the world, with a maximum volume of 714 million barrels. The cap was previously set at 727 million barrels.
Oil in the reserve is stored underground in a series of large underground salt domes in four locations along the Gulf Coast of Texas and Louisiana, and is linked to major supply pipelines in the region.
Salt domes, formed when a mass of salt is forced upward, are a good choice for storage since salt is impermeable and has low solubility in crude oil. Most of the storage sites were acquired by the federal government in 1977 and became fully operational in the 1980s.
History of drawdowns
In the 1975 act, Congress specified that the reserve was intended to prevent “severe supply interruptions” – that is, actual oil shortages.
Over time, as the oil market has changed, Congress expanded the list of reasons for which the Strategic Petroleum Reserve could be tapped, such as domestic supply interruptions due to extreme weather.
The third was a coordinated release by the International Energy Agency in 2011 as a result of supply disruptions from several oil-producing countries, including Libya, then facing civil unrest during the Arab Spring. In all, the agency coordinated a release of 60 million barrels of crude, half of which came from the U.S.
President Joe Biden’s November decision to tap the reserve was also seen as political by Republicans because there was no emergency shortage of supply at that time.
Similarly, the latest historic release of 180 million barrels could also be seen as serving a political purpose – in an election year, no less. But I believe it also seems perfectly legitimate in terms of fulfilling the Strategic Petroleum Reserve’s original purpose: reducing the negative impacts of a major oil price shock.