Strategic Petroleum Reserve (United States)
The Strategic Petroleum Reserve (SPR) is an emergency fuel storage of oil maintained by the United States Department of Energy. It is the largest emergency supply in the world with the capacity to hold up to 727 million barrels (115,600,000 m3).
The current inventory is displayed on the SPR's website. As of October 12, 2012, the inventory was 694.9 million barrels (110,480,000 m3). This equates to 36 days of oil at current daily US consumption levels of 19.5 million barrels per day (3,100,000 m3/d). At recent market prices ($102 a barrel as of February 2012) the SPR holds over $26.7 billion in sweet crude and approximately $37.7 billion in sour crude (assuming a $15/barrel discount for sulfur content). The total value of the crude in the SPR is approximately $64.5 billion USD. The price paid for the oil is $20.1 billion (an average of $28.42 per barrel).
Purchases of crude oil resumed in January 2009 using revenues available from the 2005 Hurricane Katrina emergency sale. The DOE purchased 10,700,000 barrels (1,700,000 m3) at a cost of $553 million.
The United States started the petroleum reserve in 1975 after oil supplies were cut off during the 1973-74 oil embargo, to mitigate future temporary supply disruptions. According to the World Factbook, the United States imports a net 12 million barrels (1,900,000 m3) of oil a day (MMbd), so the SPR holds about a 58-day supply. However, the maximum total withdrawal capability from the SPR is only 4.4 million barrels (700,000 m3) per day, making it a 160 + day supply.
Read more about Strategic Petroleum Reserve (United States): Facilities, Limitations
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