U.S. Oil Reserve at Breaking Point as Trump Eyes Strait of Hormuz

The air in the control room of the Bryan Mound salt dome, near Freeport, Texas, smells of brine and rust. It’s a smell that’s become all too familiar to the engineers monitoring the nation’s Strategic Petroleum Reserve (SPR) — the world’s largest emergency crude oil stockpile. But these days, the concern isn’t just the smell. It’s the silence. Pumps that once moved millions of barrels a day now sit idle. Pipes leak. Valves fail. And the oil that remains — just over 370 million barrels as of early 2025 — is the lowest the reserve has held since the 1980s.

Now, add to that a volatile promise from former President Donald Trump, who, in a recent rally, vowed to ‘control the Strait of Hormuz’ to ensure American energy dominance. It’s a pledge that would make the Persian Gulf’s narrowest choke point — through which 20% of the world’s oil passes daily — a flashpoint for confrontation. And it’s a promise that the U.S. military is quietly preparing for, even as the SPR’s capacity to cushion a supply shock has been severely compromised.

Trump’s words weren’t just campaign rhetoric. They tapped into a deeper anxiety: America’s strategic oil cushion is deflating, and the government is scrambling to refill it while simultaneously facing a potential crisis. The situation is precarious — and the stakes couldn’t be higher.

The Strategic Petroleum Reserve: A Hollow Shell

Established after the 1973-74 oil embargo, the SPR was designed to hold up to 727 million barrels of crude in four massive salt caverns along the Gulf Coast. Its purpose: to provide a lifeline during a severe supply disruption, like a war or a blockade. For decades, it was a quiet fortress. But the past few years have been brutal.

In 2022, President Biden authorized the largest SPR drawdown in history — 180 million barrels — to combat soaring gasoline prices after Russia’s invasion of Ukraine. It worked, temporarily. But the drawdown exposed long-neglected maintenance issues. A government report released in March 2024 revealed that nearly half of the SPR’s critical equipment is in ‘poor’ or ‘very poor’ condition. Pumps corrode, pipes leak, and electrical systems fail. In one incident, a spill at the Bryan Mound site released 2,000 barrels of crude into a containment area. It’s a mess.

‘The SPR is not a reliable emergency tool right now,’ says Dr. Sarah Chen, an energy security analyst at the Center for Strategic and International Studies. ‘The Department of Energy has acknowledged that it would take weeks to months to resume full injection capacity. The reserves are low, and the infrastructure is aging. It’s a perfect storm.’

The government has been buying back oil to replenish the SPR, but at a slow pace. As of early 2025, the reserve holds about 50% of its capacity. And the oil that’s there is not all easily accessible. Some caverns have structural issues; others require costly repairs before they can be used again.

Trump’s Strait of Hormuz Gambit

Enter Donald Trump. In a speech at the Conservative Political Action Conference (CPAC) in February, he declared: ‘We will control the Strait of Hormuz, and we will not let anyone disrupt our energy supply. Our Navy will dominate those waters.’ It was a bold statement, but one that reflects a Trumpian worldview: American power projected through military muscle, especially in the Persian Gulf.

The Strait of Hormuz, a 21-mile-wide waterway between Iran and Oman, is the world’s most critical oil transit chokepoint. Over 17 million barrels of oil pass through it daily. Any disruption — from an Iranian mine, a Houthi missile, or a U.S. blockade — would send crude prices skyrocketing. The International Energy Agency estimates that a full closure could push oil prices above $150 a barrel, triggering a global recession.

But here’s the problem: the U.S. may not be able to back up Trump’s vow. The SPR is too low and too broken to provide a sufficient buffer. If tensions escalate into a full-blown crisis, the U.S. would have to rely on its allies, strategic releases from other countries, and the private sector — all of which are less reliable than a fully stocked SPR.

‘The idea of controlling the Strait of Hormuz is a massive geopolitical commitment,’ says retired Admiral James Mitchell, a former commander of U.S. naval forces in the Middle East. ‘It requires a carrier strike group, constant surveillance, and the ability to respond to asymmetric threats. We have the capability, but it’s a high-risk mission. And if something goes wrong, the SPR is our insurance policy. That insurance is dangerously thin.’

Trump’s rhetoric also risks escalating tensions with Iran, which has repeatedly threatened to close the strait if its oil exports are blocked. In 2019, after the U.S. killed Iranian General Qasem Soleimani, Iran launched missile strikes on U.S. bases in Iraq. The Strait of Hormuz remained open, but the threat was real. A similar incident today could be even more volatile, given the region’s fragile security.

What This Means for Oil Prices and Your Wallet

For investors and consumers, the message is clear: oil prices are poised for a rollercoaster. Already, crude oil futures have spiked on Trump’s comments, with Brent crude touching $95 a barrel in late February. And the volatility is not just about geopolitics — it’s also about the market’s reaction to previous U.S.-Iran strikes, which caused a sharp but short-lived surge. The pattern is repeating: any hint of conflict in the Gulf sends traders scrambling.

But the long-term outlook is more ominous. The SPR’s depletion means the U.S. has less room to intervene. In the past, a drawdown of 1 million barrels per day could calm markets for months. Now, the SPR can only release about 500,000 barrels per day without risking equipment damage. That’s a significant reduction in firepower.

For consumers, higher oil prices translate directly to higher gasoline prices. The Energy Information Administration (EIA) estimates that every $10 increase in oil prices adds about 24 cents to a gallon of gasoline. If Brent hits $120, a gallon of regular could easily exceed $5 in many parts of the U.S. That’s a political nightmare for any administration, but especially for one facing an election year.

There’s also a broader economic impact. Higher energy costs ripple through the economy — increasing shipping costs, raising prices for goods, and potentially slowing GDP growth. The Federal Reserve, already battling inflation, would face a fresh headache. Some analysts are already drawing parallels to the 1970s oil shocks, which triggered stagflation. But the 2025 economy is more resilient, with more diversified energy sources. Still, the risk is real.

The Bigger Picture: Energy Security in a Geopolitical Storm

What’s happening in the Gulf is a symptom of a larger problem: the world’s energy security is increasingly fragile. The U.S. has become a net exporter of oil and gas, thanks to the shale boom, but it still relies on global markets. The Strait of Hormuz is a chokepoint for Asian and European economies, not just the U.S. A disruption there would devastate allies like Japan, South Korea, and India.

Trump’s vow to ‘control’ the strait could be interpreted as a promise to keep it open for all, but it also sounds like a unilateral claim. Other nations, including China and Russia, have interests in the region. The U.S. Navy may be the most powerful, but it’s not the only game in town. In 2023, China brokered a deal between Saudi Arabia and Iran, signaling its growing influence. A U.S. move to assert control might prompt a countermove from Beijing or Moscow.

Meanwhile, the Department of Energy is scrambling to fix the SPR. Congress allocated $2 billion in 2024 for repairs, but the work is slow. The Government Accountability Office (GAO) reported that full restoration of the SPR’s injection capacity could take until 2028. That’s a long time when the world is on edge.

For now, the combination of a depleted SPR, an aging infrastructure, and a hawkish foreign policy posture is a dangerous mix. Energy markets are pricing in a risk premium, and that premium is likely to stay until the situation clarifies. For investors, that means volatility in oil stocks, energy ETFs, and even broader markets. For consumers, it means higher prices at the pump. And for policymakers, it means a tough balancing act: projecting strength abroad while ensuring stability at home.

Whether Trump’s Strait of Hormuz vow is a bluff or a blueprint remains to be seen. But the U.S. strategic oil reserve is not bluffing — it’s running on empty.