JD Vance Blamed the Iran War for the Midterm Loss; Brent Fell 8.7%

At 6:45 a.m. ET, Brent was down only 1.3% at $102.30. The election result was already known, and oil was largely shrugging it off.

By the afternoon the picture had changed. Brent closed down 8.7% at $94.62, a two-month low. WTI was down 8.3% at $88.08 as of 1:06 p.m. ET.

Stocks traced the same move in reverse. The Dow rose 1,569.40 points, or 3%, to 53,356.12, its best day since April 2025 according to Yahoo Finance. The S&P 500 gained 1.6%, and the 10-year Treasury yield fell from 4.95% to 4.88%.

What Vance Said, and How Trump Answered

Vice President Vance gave the reason for the defeat in one line on X: "The reason we lost is the war." He challenged anyone who thought losing the Senate for six years was worth it to say so openly.

Trump told the WSJ he had no regrets: "I would have done it again." According to the Times of Israel, he also said he thought Vance's post was fine.

For the market, the gap between the two mattered little. The political cost of the war was now being stated from inside the White House.

What Was Said Versus What Binds

Three questions need separate answers. What was said is an opinion: Vance did not stop the war and has no power to do so.

There is no binding instrument. No ceasefire has been signed; CBS reports indirect talks via Qatar, Pakistan and Saudi Arabia, and Iran called the US response unconvincing.

The new Congress takes office only on January 3, 2027. A resolution limiting war powers would also face Trump's veto, and the override threshold sits above the Democrats' seat count.

In the morning, the market read the election as a data center story. By the afternoon, it was reading the same result as a war story.

How a War Premium Melts

The war premium in oil equals the probability that the war continues times the price gap that scenario implies. Physical supply does not change overnight, but the probability can.

The physical market had already prepared for this drop. Data cited by 24/7 Wall St show Dated Brent's premium to futures fell from about $30 in early October to $3.70 on November 3. Cargoes were struggling to find buyers, and futures caught up with that slack on Wednesday.

The chart shows the index over the past month; the November 4 jump came after a month-long AI selloff in October.

Selling Concentrated in Energy and Defense

The burden of the decline fell on energy producers and the defense industry. Refiners, which recently posted record profits, were sold the hardest.

Exxon fell 4.6% and Chevron 5%; see our earnings analysis for Exxon's quarter. In defense, Northrop Grumman also dropped 4.5%.

The Part That Does Not Fit

The Strait of Hormuz did not reopen. According to CBS, Iran's Revolutionary Guards said four tankers trying to use the prohibited passage hit mines and were burning.

In October, 11.7 million barrels a day passed through the strait, below about 14.5 million before the war. Supreme Leader Mojtaba Khamenei also wrote that anyone expecting a shift in US policy was gravely mistaken.

What It Means for Investors

• The market cut the odds of a longer war but did not price an actual reopening of Hormuz; by Goldman's math, about $18 of premium remains.
• The US stocks most sensitive to oil are refiners and producers: Marathon Petroleum, Valero and ConocoPhillips were among the day's biggest losers.
• The date to watch is January 3, 2027; until then the only signature that can end the war is Trump's, and the Qatari mediators' reply is the first clue.
• The risk to this view is a new attack in the strait: if tanker losses mount, the $9 premium erased on Wednesday could return quickly.

For how oil feeds into inflation and rates, see our inflation guide.

Sources: Closing prices and stock moves come from AP's market close report and from Fortune. Morning and intraday oil prices are from Reuters, Cornerstone Futures and Oilprice.com. Vance's quote is from AP/PBS; Trump's is from a WSJ interview cited by CBS. Goldman Sachs' war-premium estimate and physical market data rely on 24/7 Wall St and could not be verified against a primary document. A WTI settlement price was not available in the sources at publication time.