Trump taps Strategic Petroleum Reserve as Iran war pushes oil above $90

Gas prices at the pump do not care about military strategy. They go up when oil goes up, and right now oil is above $90 per barrel for the first time since late 2023. President Trump ordered a release from the Strategic Petroleum Reserve this week, a tool he has used before and one that works only at the margins when global supply anxiety is this acute. The order came after two weeks of US-Israel military operations against Iran sent Brent crude climbing more than $12 per barrel in 14 days.

The political context is straightforward. A Fox News poll conducted in the third week of the conflict found that 61 percent of voters disapprove of Trump's handling of the economy. That number is worse than his economic approval rating in February 2025, before the Iran campaign began. Gas prices are one of the most immediately visible economic indicators for most American households, and a spike at the pump tends to move polling numbers faster than most other economic data.

What the SPR release actually does to prices

The Strategic Petroleum Reserve holds approximately 350 million barrels of crude oil in underground salt caverns in Louisiana and Texas. The Biden administration drew it down from around 600 million barrels to roughly 370 million barrels between 2022 and 2023, the largest sustained SPR release in the reserve's history. Trump's order authorizes a release of up to 20 million barrels over 30 days, which represents about 20 hours of global oil consumption at current demand levels.

Twenty million barrels does not fix a $12 per barrel price increase driven by genuine supply risk in one of the world's most trafficked energy corridors. What it does is send a market signal that the US government is paying attention and is willing to act. That signal has historically produced a short-term price dip of $1 to $3 per barrel, which translates to roughly 3 to 7 cents per gallon at retail. The effect typically fades within two to three weeks unless physical market conditions improve.

Democrats connect gas prices to midterm strategy

Democrats in Congress and on the campaign trail have moved quickly to tie rising gas prices to the Iran war specifically, rather than treating it as a general economic complaint. Senate Minority Leader Chuck Schumer held a press conference outside a Washington DC gas station where prices had crossed $4.20 per gallon, up from $3.45 in late February. The framing is deliberate: the argument is not just that prices are high, but that the Trump administration made a choice that caused them to rise.

That argument has limits. Iran has been developing nuclear capabilities for decades, and the decision to act militarily was not made solely on domestic political timing. But the political math heading into the 2026 midterms is not subtle. Republicans currently hold a six-seat margin in the House. Historical patterns from the Cook Political Report show that the president's party loses an average of 28 House seats in midterm elections when his approval rating on the economy is below 45 percent. Trump's current economic approval in the Fox News poll is 39 percent.

Democratic candidates in swing districts are already incorporating gas price messaging into their early campaign materials. The Democratic Congressional Campaign Committee sent a memo to candidates in late February advising them to connect energy costs to military spending and frame the combination as an affordability crisis with a specific cause. That kind of coordinated messaging framework, distributed this early before a midterm cycle, suggests the party sees the issue as durable rather than a short-term news spike.

How the Strait of Hormuz risk is priced into oil markets

Oil markets are not pricing in an actual Strait of Hormuz closure. They are pricing in the probability of one. Goldman Sachs published a note on March 10 estimating that current oil prices include a risk premium of approximately $8 to $10 per barrel for potential Hormuz disruption. If the strait were actually closed for even two weeks, Goldman's model projected prices between $130 and $150 per barrel, depending on how quickly Saudi Arabia and the UAE could redirect exports through overland pipeline alternatives.

Saudi Arabia's East-West Pipeline, which runs from the Eastern Province to the Red Sea port of Yanbu, has a capacity of about 5 million barrels per day. The UAE's Abu Dhabi Crude Oil Pipeline can move roughly 1.5 million barrels per day to the port of Fujairah, bypassing the strait entirely. Together, those routes could handle less than half of the approximately 17 million barrels per day that normally move through Hormuz. The gap is large enough that a prolonged closure would cause a supply shock even with those alternatives fully utilized.

Republican divisions over war costs

Not all of the political pressure on Trump is coming from Democrats. A group of House Republicans, primarily from the libertarian and fiscal conservative wings of the party, have been privately raising concerns about the cost of the military campaign alongside the economic effects. The Congressional Budget Office does not yet have a full cost estimate for the Iran operations, but defense analysts at the Center for Strategic and Budgetary Assessments estimated in early March that the first two weeks of operations likely cost between $4 billion and $6 billion in munitions and operational expenses alone.

Representative Thomas Massie of Kentucky posted on X that the combination of rising gas prices, war spending, and existing deficit levels was 'fiscally unsustainable without a defined endpoint.' Massie does not represent a swing district, but his comments reflect a strain of Republican opinion that Trump will need to manage if the campaign extends beyond its current timeline without a clear off-ramp.

What the SPR has left and what that means

The Department of Energy reported the SPR at approximately 350 million barrels before Trump's release order. After the authorized 20 million barrel drawdown, the reserve would sit around 330 million barrels. The SPR's maximum storage capacity is 714 million barrels, so the US is operating at less than half capacity. Energy security analysts at the Bipartisan Policy Center have argued since 2023 that the reserve should be refilled before any further releases, given how much the Biden administration drew down during the 2022 energy crisis.

Trump had pledged during the 2024 campaign to refill the SPR, citing national security. The Iran war has put that pledge in direct conflict with the short-term political need to show action on gas prices. The next scheduled Department of Energy SPR status report is due in mid-April, and it will show whether the release actually moved enough oil into the market to affect retail prices or whether the $90 price level held regardless.