U.S. Strategic Petroleum Reserve Drops to 44-Year Low; Trump to Refill

The U.S. Strategic Petroleum Reserve (SPR), a “national emergency oil tank” stockpiled by the U.S. to prepare for crises like war or oil supply disruptions, has fallen to its lowest level in 44 years. In response, U.S. President Donald Trump announced plans to refill it with Venezuelan crude oil. This aims to address the gap created by massive SPR releases amid the prolonged Iran war, which strained oil supplies and spiked prices.

President Trump stated on his social media platform Truth Social on the 30th (local time), “One of the things I will do with Venezuelan oil is fill the national strategic reserve. The process of filling it up will start very soon, and this is Venezuela’s gift to the American people.”

The SPR was established by the U.S. in the 1970s following the oil shocks. It stores crude oil in massive underground salt caverns along the Gulf of Mexico, including in Texas and Louisiana, to be released during emergencies like wars or natural disasters that disrupt oil supplies. Rather than a simple inventory to lower prices, it serves as a “petroleum insurance” for national security. The current storage capacity is 714 million barrels.

The issue is that this insurance is rapidly depleting. According to the U.S. Energy Information Administration (EIA), as of August 21, the SPR held 289.73 million barrels—the lowest level since November 1982. This represents just 41% of total capacity. Following Russia’s invasion of Ukraine, the Biden administration released large volumes to combat high oil prices. The Trump administration also released significant amounts this year to address supply disruptions and price surges caused by the Iran war. In March, the International Energy Agency (IEA) member countries agreed to a joint release of 400 million barrels, with the U.S. contributing 172 million barrels, beginning market supply that same month.

The declining reserves mean the U.S. has fewer resources to respond to future oil supply shocks. In May, the U.S. Government Accountability Office (GAO) warned that aging infrastructure at storage facilities has further jeopardized the SPR’s emergency response capabilities. The GAO cautioned that without proper investment, the ability to store or release oil could be constrained.

Financial markets reacted sensitively to this. On the 10th, when reserves fell below 300 million barrels, expectations for renewed negotiations over the Strait of Hormuz weakened, causing West Texas Intermediate (WTI) crude to surge over 5% to more than $82 per barrel. That day, the S&P 500 fell 0.06%, the Nasdaq dropped 0.32%, and the Dow Jones declined 0.11%. Concerns grew that the U.S. government’s “safety net” to counter additional oil supply shocks was shrinking amid the protracted Iran war.

Analysts suggest Trump’s urgency to secure the Venezuela oil deal reflects these circumstances. On the 28th, Trump announced a “historic oil deal” with Venezuela, aiming to develop 17 strategic oil fields with an initial target of producing over 1.5 million barrels per day. For the U.S., this could lower international oil prices while replenishing depleted SPR reserves.

However, the actual pace of replenishment remains uncertain. Venezuela holds the world’s largest proven oil reserves but currently produces only about 1.25 million barrels per day due to years of underinvestment, aging infrastructure, and sanctions. Significantly increasing production requires massive investments in oil fields and pipelines. Reuters noted, “It remains unclear how quickly the Venezuela deal will refill the SPR or what short-term benefits U.S. consumers might see.”