--- title: "US Strategic Petroleum Reserve falls to 40-year low below 300 million barrels" publication: "MediaBias News" url: "https://mediabias.news/business/us-strategic-petroleum-reserve-falls-to-40-year-low-below-300-million-barrels" api: "https://mediabias.news/api/v1/stories/us-strategic-petroleum-reserve-falls-to-40-year-low-below-300-million-barrels" markdown: "https://mediabias.news/business/us-strategic-petroleum-reserve-falls-to-40-year-low-below-300-million-barrels.md" audio: "https://mediabias.news/api/audio/us-strategic-petroleum-reserve-falls-to-40-year-low-below-300-million-barrels" category: "Business & Economy" area: "United States" published: "2026-08-17T01:45:57.515Z" source_reported: "2026-08-16T12:33:24.000Z" updated: "2026-08-17T01:45:57.515Z" trust_score: 74 critic_score: 58 hype_score: 32 assessment_type: "coverage-and-source-reporting-analysis" fact_check_status: "not-performed" coverage_measured: "2026-08-17T00:48:43.378Z" --- # US Strategic Petroleum Reserve falls to 40-year low below 300 million barrels *Drawdowns to offset Iran war disruptions leave caverns at risk, experts warn, as prices hit record highs* **Scores for the source reporting** (0-100, assessing the original journalism this article was written from, not this write-up): - Trust 74 of 100, higher is better. Corroborated by multiple outlets. - Craft 58 of 100, higher is better. Lacks direct quotes from diverse sources. - Hype 32 of 100, lower is better. Sensational language in some headlines. Scored by MediaBias News; method at https://mediabias.news/methodology. **The short version** - The US Strategic Petroleum Reserve fell below 300 million barrels in August 2026, its lowest level since 1983, after drawdowns to offset disruptions from the Iran war. - Experts warn that reducing the reserve to less than 300 million barrels risks damaging the salt caverns where oil is stored, potentially limiting future emergency responses. - The Trump administration released 172 million barrels as part of an exchange programme, leaving the reserve at an estimated 243 million barrels once allocations are complete. - Gasoline prices hit a mid-August record of $4.07 per gallon, with analysts estimating that strategic releases prevented prices from rising by $10 to $15 per barrel. The US Strategic Petroleum Reserve (SPR) dropped below 300 million barrels in August 2026, reaching its lowest level since 1983. The Department of Energy reported the decline earlier this month, marking the first time the reserve has fallen below that threshold in over four decades. The US began the year with approximately 415 million barrels. The drawdown follows releases aimed at stabilising global oil markets amid disruptions from the Iran war, particularly closures in the Strait of Hormuz and the Red Sea. The Trump administration authorised a 172-million-barrel exchange, which will leave the SPR at an estimated 243 million barrels once allocations are complete. The Biden administration previously conducted a 180-million-barrel sale in response to Russia’s invasion of Ukraine. Experts have warned that reducing the reserve below 300 million barrels risks damaging the salt caverns where the oil is stored. Amos Hochstein, a senior energy advisor to President Joe Biden, told CNBC that the reserve could not be safely depleted below that level without risking structural integrity. A Department of Energy spokesman disputed this, stating that the caverns remain full, with only the ratio of oil to water changing as oil is withdrawn. ## Disagreements over cavern safety and future capacity The Department of Energy maintains that the SPR’s storage caverns are not at risk of collapse, as reported by Live Mint. A spokesman said the caverns are always full, with oil and water ratios shifting as oil is withdrawn. However, Amos Hochstein, as quoted by Live Mint, called claims that the reserve could safely drop to 70 million barrels "nonsense," warning that such a level would render the reserve irrecoverable. Siddharth Misra, a petroleum engineering professor at Texas A&M University, told CNBC that the practical operational floor for the reserve is between 250 and 300 million barrels. ## What the coverage left out None of the right-rated digests mentioned the warnings from experts about cavern damage or the operational risks of reducing the reserve below 300 million barrels. The left-rated reports and the centre-rated report included these details. The right-rated digest also did not report the record gasoline prices or the estimated impact of strategic releases on oil prices. ## Who covered it Shares of the 6 covering outlets with a published leaning rating: - Left: 67% (4) - Centre: 16% (1) - Right: 17% (1) 0 of 6 covering outlets carried no usable leaning rating and were excluded from those percentages. Coverage measured 2026-08-17T00:48:43.378Z. **Coverage watch:** developing. Checked 9 times; 0 checks found a material change. Most recently checked 2026-08-17T04:00:24.886Z. ## How the sides framed it ### Left - The four left-rated digests and reports led on the reserve’s historic low and the risks to cavern integrity. NPR’s full report quoted Kevin Book of ClearView Energy, who said the reserve is now at less than half the volume it held at the start of the Biden administration and that the US has "used a lot of our oil insurance already." The report also noted that strategic releases may have prevented oil prices from rising by $10 to $15 per barrel. - The Independent’s digests highlighted the record gasoline prices, reporting a mid-August national average of $4.07 per gallon. The Cradle’s digest quoted President Trump saying US consumers should not complain about "paying more" for gasoline due to the war with Iran. None of the left-rated digests omitted the warnings about cavern damage or the reserve’s diminished capacity for future emergencies. ### Centre - Live Mint’s full report led on the SPR falling below 300 million barrels and the warnings from experts about cavern damage. The report quoted Amos Hochstein dismissing claims that the reserve could safely drop to 70 million barrels, calling them "nonsense." It also included the Department of Energy’s rebuttal, which stated that the caverns remain structurally sound. The report noted that both Democratic and Republican lawmakers have raised concerns about the reserve’s stability. ### Right - The right-rated digest from weeklyblitz.net reported the SPR’s drop below 300 million barrels and noted that the Trump administration had released large volumes to soften the impact of the Iran war. The digest did not mention warnings about cavern damage or the risks of further drawdowns. It also did not reference the record gasoline prices or the potential impact on future emergency responses. **Provisional coverage gap:** right. The watch is not closed, so this is not yet a settled blindspot finding. ## Factuality profile of the covering outlets These are published factuality ratings of the outlets, not a verdict on whether this story or its claims are true. - mixed: 5 - high: 1 ## Verification scope This page compares coverage and scores the source reporting. It is not a ClaimReview verdict on whether the underlying event or claim is true. ## Original reporting this was written from - [The Cradle](https://thecradle.co/articles-id/39407) — US oil reserves plunge to 40-year low as war on Iran strains energy supplies - [npr](https://npr.org/2026/08/16/nx-s1-5930403/u-s-oil-reserves-hit-the-lowest-level-seen-in-over-40-years) — U.S. oil reserves hit the lowest level seen in over 40 years - [Live Mint](https://livemint.com/news/us-news/us-strategic-petroleum-reserve-falls-below-300-mn-barrels-amid-iran-war-sparking-concerns-over-future-emergencies-11786849932663.html) — US Strategic Petroleum Reserve falls below 300 mn barrels amid Iran war, sparking concerns over future emergencies - [The Independent](https://independent.co.uk/news/world/americas/us-politics/strategic-petroleum-reserve-trump-iran-war-gas-prices-b3033680.html) — Trump’s Iran war leaves US oil reserves so low caverns risk damage - [The Independent (US)](https://the-independent.com/news/world/americas/us-politics/strategic-petroleum-reserve-trump-iran-war-gas-prices-b3033680.html) — Trump’s Iran war leaves US oil reserves so low caverns risk damage - [weeklyblitz.net](https://weeklyblitz.net/2026/08/16/the-us-strategic-petroleum-reserve-has-fallen-to-a-43-year-low) — The US strategic petroleum reserve has fallen to a 43-year low ## Questions **How low has the US Strategic Petroleum Reserve fallen?** The US Strategic Petroleum Reserve dropped below 300 million barrels in August 2026, reaching its lowest level since 1983. The Department of Energy reported the decline, which follows drawdowns to offset disruptions from the Iran war. The reserve began the year with approximately 415 million barrels. **Why are experts warning about the reserve’s cavern integrity?** Experts warn that reducing the reserve below 300 million barrels risks damaging the salt caverns where oil is stored. Amos Hochstein, a senior energy advisor, told CNBC that the reserve could not be safely depleted below that level without risking structural integrity. A petroleum engineering professor said the operational floor is between 250 and 300 million barrels. **How have gasoline prices been affected by the reserve drawdowns?** Gasoline prices hit a mid-August record of $4.07 per gallon, according to reports. Analysts estimate that strategic releases from the reserve may have prevented oil prices from rising by $10 to $15 per barrel. The drawdowns were aimed at stabilising prices amid disruptions from the Iran war. **Which outlets reported on the risks to the reserve’s caverns?** The left-rated reports and the centre-rated report included warnings about cavern damage and operational risks. NPR and Live Mint quoted experts who said reducing the reserve below 300 million barrels could compromise its structural integrity. The right-rated digest did not mention these warnings. --- MediaBias News — https://mediabias.news. Reproduced from https://mediabias.news/business/us-strategic-petroleum-reserve-falls-to-40-year-low-below-300-million-barrels. Please cite as: MediaBias News, "US Strategic Petroleum Reserve falls to 40-year low below 300 million barrels", https://mediabias.news/business/us-strategic-petroleum-reserve-falls-to-40-year-low-below-300-million-barrels