Brent Oil Futures Flip to Backwardation on Heightened Middle East Supply Risk

The structure of the Brent crude oil market has shifted significantly to reflect mounting supply risks, with the premium for prompt-delivery futures hitting a one-month high on Tuesday amid escalating U.S.-Iran tensions.

Shift Signals Supply Jitters

The price of the first-month Brent contract rose to $8.92 a barrel above the sixth-month contract, its largest premium since June 10, according to a Reuters report. This market structure, known as backwardation, is typically viewed by traders as a sign of tight near-term supplies and heightened demand for immediate delivery.

The move marks a sharp reversal from early July, when the market was in contango—a structure where prompt prices trade at a discount to later-dated contracts, usually indicating ample supply. That earlier structure had been influenced by recovering exports through the Strait of Hormuz, which had eased supply concerns.

Geopolitical Tensions Drive Move

The primary driver for the return to backwardation is a recent flare-up in geopolitical tensions between the U.S. and Iran. Renewed military strikes and attacks on vessels near the Strait of Hormuz have reignited concerns over the security of Middle Eastern oil supplies passing through the critical shipping chokepoint.

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"The return to backwardation signals that the market expects crude availability to remain constrained in the weeks ahead," said Ole Hansen, head of commodity strategy at Saxo Bank, in a comment to Reuters.

Market Impact and Physical Flows

While the shift is currently concentrated in the futures market, it reflects growing anxiety that could impact physical oil flows. "For the moment, this is largely a paper move, with investors likely pouring back into the market following the latest escalation," said Neil Crosby, head of research at Sparta Commodities.

However, there are early signs of physical disruption. Crosby noted that tanker flows out of Hormuz are slowing, which could impact the physical market if the situation persists. Supporting this, key data points include:

• Oil and gas tanker traffic fell to its lowest level since May 25, according to a Kpler analysis on Monday.
• Other Middle East crude benchmarks like Oman, Dubai, and Murban have also swung from discounts to premiums, signaling broad regional supply concerns.