The Strategic Petroleum Reserve is an emergency fuel store of oil maintained by the United States Department of Energy. The 727-million-barrel U.S. Strategic Petroleum Reserve is the largest stockpile of government-owned emergency crude oil in the world.
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 12 million barrels of oil a day. The SPR holds about a 58-day supply. The maximum total withdrawal capability from the SPR is only 4.4 million barrels per day, making it a 160 + day supply.
This is a look at U.S. Emergency Oil Reserve.