Global Oil Demand to Fall for First Time Since 2020 — What the IEA's July 2026 Report Forecast

Steep Revision from Earlier Forecasts

The July figure was a steep downgrade from the IEA's own prior estimates. The 1.1 mb/d decline represented a reduction of 700 kb/d (700,000 b/d) compared with the IEA's May 2026 report . This extraordinary revision was driven by evidence that second-quarter 2026 deliveries had plunged by 5 mb/d year-on-year amid surging fuel prices and severe product availability disruptions .

Key Drivers of the Decline

The IEA identified four primary, interconnected factors behind the projected demand contraction:

1. Breakdown of the Strait of Hormuz ceasefire and de facto closure. The Strait of Hormuz — through which nearly 20% of global oil supply had flowed before military action began on February 28, 2026 — remained effectively closed to shipping through mid-2026 . A fragile ceasefire between the US and Iran broke down, preventing any meaningful resumption of tanker traffic. The IEA warned that even after shipping resumed, recovery of supply flows would take months . The closure created a historic supply shock that sent Dated Brent spot prices spiking to $144/barrel .

2. Forced demand destruction from high prices and fuel shortages. With the strait closed, oil availability collapsed, driving retail fuel prices to levels that crushed consumption. The IEA noted that demand destruction had spread "beyond the sectors and regions that were initially the most heavily affected by the US-Iran war," with higher prices and "a harsher macro climate" hitting a broader swath of the global economy .

3. Global supply collapse. The IEA estimated that global oil output would fall by 3.9 mb/d in 2026 due to the Iran conflict, with supply averaging about 102.4 mb/d — below projected demand of 103.3 mb/d, creating a net market deficit through most of the year .

4. Deep cuts in Asian demand. The demand destruction was concentrated in Asia, the region most reliant on Middle Eastern crude, where Q2 deliveries saw the heaviest year-on-year drops .

Contrasting Estimates from the US Energy Information Administration (EIA)

The EIA and the IEA converged on a similar headline number by mid-2026, though they started from very different positions.

• EIA's July 2026 STEO (Short-Term Energy Outlook): The EIA also forecast that global oil demand would decrease by 1.1 mb/d over the course of 2026, compared to 104.0 mb/d in 2025 . Its July 9 press release stated that "global oil demand in 2026 falls by 1.1 million b/d compared with last year but is expected to increase by 2.5 million b/d in 2027" .

• Earlier divergence: In May 2026, the EIA had been forecasting a much shallower decline of only about 420,000 b/d, meaning it was initially less pessimistic than the IEA about the scale of demand destruction . By June, as the Strait of Hormuz closure persisted and the ceasefire failed, the EIA revised sharply downward — eventually landing at the same 1.1 mb/d contraction as the IEA .

• Price outlook difference: Despite both agencies forecasting the same demand decline, their price views diverged. The IEA expected a persistent deficit through end-2026, while the EIA predicted that production of petroleum and other liquids would continue to exceed global demand, leading to falling Brent prices — from $69/barrel in 2025 to $58/barrel in 2026 and $53/barrel in 2027 .

Bottom Line

Both the IEA and the EIA projected a 1.1 mb/d drop in global oil demand for 2026 — the first annual decline since 2020 — driven overwhelmingly by the de facto closure of the Strait of Hormuz, a failed ceasefire, and the resulting price shock and supply disruption that forced widespread demand destruction. While the agencies agreed on the scale of the demand contraction, they diverged on the price outlook, with the IEA anticipating a persistent deficit and the EIA forecasting a glut that would push prices lower into 2027.