U.S. Strategic Petroleum Reserve Drops to 325.7 Million Barrels, Lowest Since 1983
Claire Weston
The U.S. Strategic Petroleum Reserve (SPR) dropped 5.5 million barrels in one week to 325.7 million barrels, the lowest since May 1983; whether the reserve can be refilled before peak demand will test how much supply cushion America has left.
How low has the reserve fallen?
As of the week ending June 29, SPR inventory fell to 325.7 million barrels — down 5.5 million barrels in a single week.
That is the lowest level since May 1983, roughly forty years ago.
This means → the volume of crude the U.S. can deploy quickly in an emergency is shrinking fast.
Why is Washington releasing so much oil?
The drawdown is part of an agreement to release 172 million barrels from the SPR.
The twin goals: fill the global supply gap caused by the Iran war and push domestic fuel prices lower.
In plain terms = a war removed a large chunk of global supply, so the U.S. opened its own reserve tank to plug the hole and keep pump prices from spiking further.
Are commercial stockpiles falling too?
Since the war began in late February, combined U.S. commercial and SPR inventories have dropped 111.4 million barrels to 743.3 million barrels as of June 19.
That is also the lowest since 1984, driven by strong export demand and higher refinery throughput.
This reflects a dual drain — government reserves and market consumption are both drawing down at the same time.
What comes next?
The key question: can the SPR be replenished before peak-demand season — typically the summer driving months?
This means → if refilling falls behind, the U.S. buffer against the next supply shock will be significantly thinner.
Markets will use this timeline to reassess how much supply cushion America actually has left.
Content is for reference only, not financial advice.