Oil's Wildest Day in Years: Down 14%, Up 1,000 Points

If you blinked during trading on Monday, you missed one of the most violent price swings in oil market history. Brent crude plunged more than 14% at one point, the Dow surged over 1,000 points in morning trading, and the entire catalyst was a few sentences from the White House about "productive" conversations with Iran. Welcome to the Hormuz crisis, where a single statement can move trillions of dollars in minutes.

What Actually Happened

Over the weekend, President Trump had given Iran a 48-hour ultimatum to reopen the Strait of Hormuz, the narrow waterway through which roughly 20% of the world's oil supply normally flows. Markets were bracing for the worst. Then, early Monday morning, Trump did a dramatic about-face: he announced he was postponing strikes on Iranian power plants for five days, citing "good and productive" talks aimed at ending the war.

The reaction was instant. Brent crude, which had topped $114 a barrel on Friday, cratered more than 14% before clawing back some losses to close around $99.94, dipping below the psychologically important $100 mark for the first time in almost two weeks. WTI dropped more than 10% to settle at $88.13 per barrel. On Wall Street, the Dow jumped 1,076 points in morning trading before closing up 631 points, or 1.38%, at 46,208. The S&P 500 gained 1.15% and the Nasdaq rose 1.38%.

Iran Says: "What Talks?"

Here is the awkward part. While Trump was publicly hailing diplomatic progress, Tehran flatly denied any dialogue was happening. Iran's Foreign Ministry put out a statement saying there is "no dialogue between Tehran and Washington." That is a pretty significant gap between the two sides' versions of reality, and it left traders wondering whether the rally had legs or whether the rug could get pulled at any moment.

The denial matters because the entire repricing was based on one assumption: that a ceasefire or at least a Hormuz reopening was getting closer. If Iran is not actually negotiating, then the five-day pause on strikes might just be delaying the inevitable escalation. Markets gave Trump the benefit of the doubt on Monday, but the mood felt fragile.

Goldman Sachs Calls It the Biggest Supply Shock Ever

In a note published on the same day, Goldman Sachs raised its 2026 Brent crude forecast to an average of $85 per barrel, up from $77, and hiked its near-term outlook to $110 per barrel for March and April. The bank described the Hormuz disruption as the "largest-ever supply shock" for the global crude market.

Goldman's analysis assumed that flows through the Strait would remain at just 5% of normal levels for six weeks, followed by a one-month recovery period. In a worst-case scenario where disruptions last ten weeks and result in 2 million barrels per day of persistent production losses, the bank warned Brent could spike to $135 per barrel. For context, the all-time record is $147, set during the 2008 financial crisis.

The full-year average of $85 might sound modest compared to where prices are trading right now, but that number assumes a sharp decline in the second half of the year as the crisis eventually resolves. Goldman's Q4 forecast is $71 for Brent, suggesting they expect a significant normalization, one way or another.

What This Means at the Gas Pump

American drivers are already feeling the squeeze. The national average for regular gasoline hit $3.96 per gallon as of March 23, according to AAA, up from $3.72 just a week earlier and roughly $2.94 before the war began in late February. That is a 35% jump in less than a month, and it is hitting consumers at the worst possible time.

The strategic petroleum reserve release, authorized by Trump on March 11, is sending 172 million barrels into the market as part of a coordinated IEA effort totaling 400 million barrels from member nations. But the SPR only holds about 415 million barrels total, meaning this single release represents more than 40% of the reserve. The oil is flowing, with the first shipments arriving in just nine days, but the sheer scale of the supply disruption means these barrels are a Band-Aid on a much larger wound.

Goldman Sachs raised its 2026 U.S. inflation forecast by 0.8 percentage points to 2.9%, while trimming GDP growth by 0.3 percentage points to 2.2%. The dreaded S-word, stagflation, is back in every economist's vocabulary.

Four Straight Weeks of Market Pain

Monday's rally was a relief valve, but it came after four consecutive weeks of equity declines. Korea's KOSPI has dropped 6.49% over that stretch. Japan's Nikkei 225 fell 3.48%. The UK's FTSE 100 slipped into correction territory with a nearly 2% weekly decline. Even with the Monday bounce, the broader trend has been decisively negative since the Hormuz crisis began.

The problem is that one good day does not fix the underlying uncertainty. The Strait of Hormuz handles roughly 17 to 20 million barrels of oil per day in normal times. With flows at 5% of capacity, that is an enormous gap that no amount of SPR releases or OPEC spare capacity can fully cover. Markets are essentially pricing in hope, and hope is not a strategy.

The Fed's Nightmare Gets Worse

The Federal Reserve held rates at 3.50% to 3.75% last week, and Chair Jerome Powell acknowledged that inflation expectations have risen amid the conflict. The central bank is now trapped in a classic stagflationary bind: the economy needs lower rates to avoid a slowdown, but inflation is running too hot for cuts.

Every major central bank is in the same position. The ECB, which had been cutting rates as recently as early March, has already reversed course and paused. The Bank of England, the Bank of Japan, and the Reserve Bank of Australia all held steady in recent decisions. Nobody wants to be the first to cut into an oil shock, and nobody wants to hike into a potential recession. The result is paralysis across the board.

What to Watch This Week

The next five days are critical. Trump's self-imposed pause on strikes against Iranian infrastructure expires around March 28, and if no diplomatic progress materializes, the military option is back on the table. Watch for any signals from Gulf state mediators, particularly Oman and Qatar, who have historically served as back channels between Washington and Tehran.

On the data front, Goldman's forecast is now the consensus view: expect Brent to stay volatile in the $95 to $115 range as long as the Hormuz situation remains unresolved. Any confirmed reports of oil tankers transiting the Strait would be a hugely positive signal. Conversely, any military escalation, particularly against Iranian oil infrastructure, could send prices spiraling toward that $135 scenario Goldman warned about.

The gasoline price trajectory matters politically, too. With summer driving season approaching and pump prices closing in on $4, the White House has every incentive to find a resolution. Whether Iran sees it the same way is the trillion-dollar question.