U.S. Strategic Petroleum Reserve Falls 29.9% to 284.6 Million Barrels
The reserve held 284.6 million barrels for the week ending Sept. 18, 2026, far below its 714-million-barrel design capacity as officials explore potential replenishment sources.
The U.S. Strategic Petroleum Reserve held 284.6 million barrels for the week ending Sept. 18, 2026, down 29.9% from a year earlier and leaving the emergency stockpile well below its design capacity.
Stocks stood at 406 million barrels a year earlier and have fallen 130.5 million barrels, or 31.4%, since reaching 415.1 million barrels March 27. The decline followed releases and exchanges linked to the Iran-related supply disruption.
The reserve can hold up to 714 million barrels across four Gulf Coast storage sites. It contains crude oil rather than gasoline or diesel, so refineries must process the crude into products such as gasoline and diesel before it reaches consumers.
The lower inventory leaves the U.S. government with less crude available during future supply disruptions or fuel-price spikes. “You can damage them by pumping too much out of them,” Samantha Gross said.
The Department of Energy announced April 1 that it was seeking an emergency exchange of up to 10 million barrels while fulfilling a broader 172-million-barrel release commitment.
Rebuilding the reserve will require buying or exchanging crude. The timing depends on global supply, crude quality and available storage capacity. Venezuelan crude is generally heavier and higher in sulfur than much of the crude traditionally held in the reserve, creating potential refinery-compatibility issues.
Energy Secretary Chris Wright described one possible arrangement as exchanging “a barrel of heavy crude for a barrel of light or medium United States crude.”
An agreement involving Venezuelan oil fields could provide a long-term supply source. NABEP received 100-year concessions for 17 fields containing approximately 65 billion barrels of proven reserves. The Department of War’s Office of Strategic Capital received a 35% equity stake in NABEP’s corporate parent, while the State Department received the right to purchase 20% of production at cost.
The arrangement could facilitate refilling the reserve, but no delivery schedule or specific volume for the SPR has been established. The reserve’s depleted buffers come as electric vehicles have reduced oil demand in China, with electric vehicles displacing about 1 million barrels of oil demand per day there in 2025.
“A lot of the things that got us through the last six months, all those buffers, have really been worn away,” Ben Cahill said.
