
The Strategic Petroleum Reserve (SPR) is a stockpile of crude oil kept by the US government to protect against disruptions in oil supplies. The reserve is stored in underground salt caverns along the Gulf Coast and can hold up to 713.5 million barrels of crude oil. The SPR was created in the 1970s after the Arab oil embargo and has been used several times since then to release oil to the market to control fuel prices. The Biden administration has ordered multiple releases from the SPR in response to rising fuel prices, including during the COVID-19 pandemic and after the Russian invasion of Ukraine. As of 2022, the SPR held more than 568 million barrels of crude oil.
| Characteristics | Values |
|---|---|
| Purpose | To protect the United States from disruptions in oil supplies and prevent severe supply interruptions |
| Type of fuel | Crude petroleum, not refined petroleum fuels |
| Location | Texas and Louisiana along the Gulf Coast |
| Maximum capacity | 727 million barrels |
| Maximum total withdrawal capability | 4.4 million barrels per day |
| Current capacity | 568 million barrels |
| Amount released since its creation | 230 million barrels |
| Amount released in 2022 | 370 million barrels |
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What You'll Learn

The Strategic Petroleum Reserve (SPR)
The SPR can hold up to 713.5 million barrels of crude oil, with a previous capacity of 727 million barrels. The most oil it has ever held was 726.6 million barrels in 2010. As of March 25, 2022, it held more than 568 million barrels. The SPR has been tapped multiple times in response to oil supply disruptions and to control energy prices. For example, President Bush halted petroleum deposits to the SPR in 2006 to alleviate high fuel prices, and President Biden ordered a release of 1 million barrels of oil per day for six months in 2022 to control energy prices that spiked due to Russia's invasion of Ukraine.
The SPR has also been used to generate federal revenue through planned sales, such as in 1996-1997 to reduce the federal budget deficit. However, with the US becoming a net petroleum exporter, the SPR's original purpose of ensuring a steady oil supply during emergencies has evolved. Congress has mandated annual sales from the reserve from 2017 to 2028, totalling 271 million barrels. Despite this, the SPR remains a crucial tool for the US government to manage energy prices and supply disruptions.
The SPR is always "`drawdown ready,`" capable of releasing crude oil to the market within 13 days of the president's direction. The maximum withdrawal capacity is 4.4 million barrels per day, which is roughly 32% of US oil imports or 75% of imports from OPEC. The SPR is an essential component of US energy security, ensuring the country's resilience in the face of global oil market fluctuations.
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SPR's creation and purpose
The Strategic Petroleum Reserve (SPR) was created in 1975 by Congress as part of the Energy Policy and Conservation Act. The SPR was a response to the global oil crisis and Arab oil embargo of the 1970s, during which Arab oil-exporting states led by Saudi Arabia cut their supply to the world market due to Western support for Israel in the 1973 Yom Kippur War.
The SPR is a stockpile of crude petroleum, stored in large underground salt domes in four locations along the Gulf Coast of Texas and Louisiana. The SPR is intended to protect the United States from disruptions in oil supplies and prevent severe supply interruptions or actual oil shortages. While the SPR does not stockpile refined petroleum products such as gasoline, diesel, and kerosene, the Department of Energy (DOE) does maintain some extra supply of these products, such as the Northeast Home Heating Oil Reserve and the Northeast Gasoline Supply Reserve.
The SPR has been used several times in response to emergencies and supply interruptions. For example, in 2005, oil from the SPR was released in the wake of hurricanes Katrina and Rita. In 2022, the SPR was tapped to help control energy prices that spiked due to Russia's invasion of Ukraine. This release of 370 million barrels was the largest series of oil releases from the SPR and accounted for 64% of the SPR stock in February 2024.
The SPR has also been used for non-emergency purposes, such as generating federal revenue and reducing the federal budget deficit. There have been 11 planned sales of oil from the reserve, and Congress has mandated annual sales from the reserve from 2017 to 2028, totaling 271 million barrels.
The SPR reached its goal of 700 million barrels in 2005 and peaked in January 2010 at 726.6 million barrels. As of March 2022, the SPR was holding more than 568 million barrels, with a capacity of 713.5 million barrels.
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SPR oil sales
The Strategic Petroleum Reserve (SPR) is a stockpile of crude petroleum, not refined petroleum products such as gasoline, diesel, or kerosene. The SPR is intended to protect the United States from disruptions in oil supplies. The Department of Energy (DOE) manages the SPR, and the oil in the reserve is acquired through "royalty-in-kind" royalties owed to the US government by operators who lease federally owned land in the Gulf of Mexico.
Since 2015, Congress has also mandated sales of oil from the SPR to fund federal spending. The DOE has conducted at least seven sales since 2017, selling approximately 132 million barrels, or about 18.2% of the reserve. The Biden administration's response to the Russian invasion of Ukraine in 2022 resulted in the largest-ever SPR sale, with 370 million barrels released, lowering the SPR to its lowest level in 40 years.
In 2023, the Biden administration continued to release reserves, selling off 45% of the SPR by September. The Department of Energy began repurchasing oil, aiming for a maximum price of $79 per barrel, but further purchases were cancelled in April 2024 due to rising oil prices.
The SPR has been used to stabilize oil markets and address supply disruptions. The sales of SPR oil can impact global oil prices and supply, and the revenue generated from these sales is used to fund federal spending and modernize the reserve.
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SPR oil releases
The Strategic Petroleum Reserve (SPR) is a stockpile of crude petroleum, not refined petroleum products such as gasoline, diesel, or kerosene. The SPR is intended to protect the United States from disruptions in oil supplies. The President can authorize emergency releases from the SPR, which have occurred on four occasions.
The SPR has been used to respond to significant disruptions in oil supplies, such as the loss of crude oil due to supply disruptions in Libya and other countries in 2011, and the impact of hurricanes on oil production facilities and refineries in 2005 and 2008. In these instances, the SPR released or loaned a total of 32 million barrels of oil.
The largest series of oil releases from the SPR have been in response to oil price hikes following the Russian invasion of Ukraine in February 2022. On March 1, 2022, the International Energy Agency coordinated an international release that included 30 million barrels from the U.S. SPR. In the following eight months, President Biden ordered the release of an additional 340 million barrels of oil. These releases totaled 370 million barrels, or 64% of the SPR stock on February 25, 2024, and were greater than the combined total of all other releases since 1985.
The SPR has also conducted exchanges of oil with private companies to address short-term emergency supply disruptions. For example, in response to the temporary shutdown of the Keystone pipeline, the SPR exchanged 1.8 million barrels of oil with ExxonMobil, Phillips 66, and Atlantic Trading & Marketing Inc. to address potential supply disruptions and mitigate refinery run cuts.
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SPR's future
The Strategic Petroleum Reserve (SPR) is a stockpile of crude petroleum, not refined petroleum products such as gasoline, diesel, or kerosene. It is the world's largest supply of emergency crude oil, stored in underground salt caverns along the Gulf Coast. The SPR was created after the Arab oil embargo in the 1970s to protect the United States from disruptions in oil supplies and ensure a steady supply of oil during emergencies.
The future of the SPR is uncertain, and there have been various drawdowns and sales of oil from the reserve in recent years. For example, in 2022, President Biden ordered the release of 340 million barrels of oil in response to the Russian invasion of Ukraine, which was the largest series of oil releases from the SPR. Additionally, there have been planned sales of oil from the reserve to generate federal revenue and reduce the federal budget deficit.
Despite these drawdowns, the SPR has been slowly replenished. In 2024, the Biden administration moved to buy crude oil for the SPR, arguing that the releases had lowered gasoline prices. However, as the United States is a net petroleum exporter, the SPR's original rationale and function have changed. The need for a strategic reserve is less critical, given the decrease in imported crude oil and the increase in domestic production.
Moving forward, the SPR may continue to be utilized as a tool to influence energy prices and generate revenue. However, the frequency and magnitude of drawdowns will depend on various factors, including market conditions, political decisions, and the changing dynamics of the global oil market.
The SPR's future will also depend on how its role evolves to adapt to the energy landscape. While it was once a crucial safeguard against oil supply disruptions, the SPR may need to be re-evaluated in the context of the United States' position as a net exporter and the potential for further diversification of energy sources.
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Frequently asked questions
The Strategic Petroleum Reserve (SPR) is the world's largest supply of emergency crude oil. As of 25 March 2022, it held more than 568 million barrels of crude oil, with a maximum capacity of 713.5 million barrels.
The SPR was created to give the United States protection from disruptions in oil supplies. It was established after the Arab oil embargo in the 1970s, which occurred due to Western support for Israel in the 1973 Yom Kippur War.
The SPR has been tapped multiple times since its creation, including after the 2005 hurricanes Katrina and Rita, and in response to oil price hikes after the 2022 Russian invasion of Ukraine.
The Department of Energy is responsible for managing the SPR and can release crude oil to the market within 13 days of the president's direction. The revenue from these releases is used to restock the SPR once prices have decreased.











































