Oil benchmarks tumble as Democrats seize US Congress

Oil prices plunged more than 8 per cent on Wednesday, reaching their lowest levels in about two months as sweeping Democratic victories in the US midterm elections prompted traders to reassess the outlook for Washington’s war with Iran.
Brent crude futures settled $8.98 lower, or 8.7 per cent, at $94.62 a barrel. US West Texas Intermediate crude dropped $7.97, or 8.3 per cent, to $88.12. The declines extended a three-session retreat despite evidence of tightening American petroleum inventories.
The sell-off followed the Republicans’ loss of both chambers of Congress, a political setback for President Donald Trump that investors interpreted as increasing pressure on his administration to pursue negotiations rather than prolong military operations against Iran.
The election result does not itself end the conflict or guarantee a diplomatic settlement. However, Democratic control of congressional funding and oversight could complicate the administration’s approach, while public frustration over energy costs has increased the political stakes surrounding the fighting.
Vice President JD Vance linked the Republican defeat to the war, arguing publicly that dissatisfaction with the conflict had driven voters away from the party. His intervention reinforced expectations in energy markets that the White House could face pressure from within its own ranks to change course.
Trump acknowledged that the war had contributed to his party’s losses and indicated that the United States had no immediate plans for another strike on Iran. Traders nevertheless remained cautious about interpreting political statements as evidence of an imminent agreement.
Democratic Senate leader Chuck Schumer signalled that his party would seek to use its strengthened position in Congress to press for an end to the fighting. Any change in military policy would still depend on decisions by the administration and developments involving Tehran and regional governments.
Diplomatic uncertainty remains substantial. Qatar has stepped up efforts to mediate between Washington and Tehran, but an Iranian official indicated that the sides were still far apart on a peace agreement. The gap between market expectations and diplomatic progress leaves prices vulnerable to abrupt reversals.
The sharp retreat in crude reflects a reduction in the premium traders had attached to the possibility of prolonged disruptions to Middle Eastern production and shipping. The Strait of Hormuz remains particularly important because of its role in moving Gulf oil to international buyers.
A sustained easing of hostilities could improve tanker movements and lower the cost of securing and transporting crude. Conversely, renewed attacks or a breakdown in negotiations could quickly restore fears of supply shortages, even if political pressure for a settlement continues to grow.
The market’s changing assessment comes as Gulf oil exports have recovered from earlier disruption. Shipments reached approximately 17.1 million barrels a day in October, around three quarters of their pre-war level, suggesting that supply routes have partly adjusted while significant constraints persist.
The United Arab Emirates is considering an additional oil pipeline that could further reduce reliance on the Strait of Hormuz. Such infrastructure would take time to develop and would not immediately eliminate the exposure of regional exports to disruptions in the waterway.
Oil’s fall also influenced wider financial markets. US shares advanced after the election results, helped by expectations that cheaper energy could ease inflationary pressures. Energy producers and refiners, however, came under selling pressure as investors assessed the effect of lower crude prices on earnings.
The decline occurred despite a weekly fall in US crude inventories. The Energy Information Administration said commercial stockpiles decreased by 865,000 barrels to 409.8 million barrels in the week ending 30 October, marking a fifth consecutive weekly reduction.
That drawdown would ordinarily offer some support to prices, particularly when inventories are already constrained. On Wednesday, however, expectations surrounding the conflict and the election outcome outweighed the immediate supply figures, underscoring the influence of geopolitical developments on trading.
The group’s decision left scheduled output unchanged at a time when the market was increasingly focused on the potential recovery of disrupted shipments rather than any immediate increase in production quotas. The seven OPEC+ producers that reviewed output policy on 1 November agreed to maintain their required December production levels at September rates. Saudi Arabia, Russia, Iraq, Kuwait, Kazakhstan, Algeria and Oman are due to review market conditions again on 29 November.