Brent Back Above $110 on Tanker Attacks: What an Oil Risk Premium Is and How It Differs From Lost Supply

On October 20, 2026, Brent crude touched $111.99 a barrel, its highest level since May, before settling at $108.79 as investors weighed reports of renewed mediation between Iran and the United States, Reuters reported. The rally followed a run of attacks on merchant ships: shiptracker Kpler counted at least 18 vessels reportedly attacked over two weeks. Yemen’s Houthis also claimed strikes on an Aramco site in Yanbu and on the Shaybah oilfield; Saudi authorities did not confirm the claims and Reuters could not verify them. On the morning of October 21, Brent was back at about $110.40 and WTI near $99, according to Reuters via Arab News.

What Is Actually New

Oil has been expensive for most of 2026, so the level itself is not the story. What changed is the geography of the risk. Attacks are no longer limited to the Strait of Hormuz, and the Houthi claims point at Yanbu, the Red Sea port Saudi Arabia uses to ship crude without passing through Hormuz. If that route were hit, one of the main bypasses would be in question.

At the same time, ING analysts Warren Patterson and Ewa Manthey noted that prices stay well-supported “despite relatively strong Persian Gulf flows”. In their view, the market is pricing in a significant risk premium that would fade gradually if flows stay stable, but “there are no signs of this yet”, as quoted by Oilprice.com.

Risk Premium vs. a Real Supply Loss

We explained the basic idea of a geopolitical risk premium after the April ceasefire. This time it helps to go one step further and separate two things that both push prices up:

• A real supply loss: barrels physically stop reaching buyers because a field, a pipeline or a port is out of action. The shortage shows up in shipping data, in falling inventories and in refiners scrambling for replacement cargoes.
• A risk premium: barrels still flow, but buyers pay extra because they fear they might not tomorrow. It is a price for uncertainty, not for a missing barrel.

The difference matters because they unwind differently. A real loss lasts until the damage is repaired or replaced. A premium can shrink within hours on a credible diplomatic signal, which is exactly why Brent swung by several dollars within a single session this week.

Why Shipping Risk Raises the Delivered Price

Even when no oil is lost, moving it becomes more expensive. Shipowners pay war-risk insurance for each voyage into a dangerous area, crews demand danger pay, and some ships take longer routes. All of that is added to the price the refinery actually pays.

According to Goldman Sachs, quoted by Oilprice.com, the average cost of shipping oil is now above $20 a barrel versus about $3 a year ago, and around $35 on Middle East routes, including roughly $7 of Hormuz war-risk premium. Goldman’s baseline is still $90 Brent at year-end, but it flags higher freight and a stickier risk premium as upside risks.

How Traders Read the Signal

Professionals watch a few indicators to judge how much of the price is fear and how much is shortage:

• The futures curve. When near-term contracts trade well above later ones (backwardation), buyers are paying up for oil now, a sign of tight physical supply. A flatter curve with high volatility points more to nervousness than to shortage.
• Volatility. Large intraday swings, such as a five-month high followed by a lower close, show how quickly the market reprices news.
• Flows and freight. Tanker-tracking data, freight rates and insurance quotes show whether barrels are moving and at what cost.

From Barrel to Pump, Prices and Rates

Crude feeds into diesel, petrol and jet fuel within weeks, and diesel then raises the cost of moving goods and growing food. That is how an oil shock reaches consumer inflation and, through it, central-bank decisions: sticky energy prices make rate cuts harder to justify.

For Ukraine, the link runs through imports. The country buys most of its fuel abroad, so pump prices follow European markets, freight and the hryvnia exchange rate. According to Glavcom, between September 20 and October 20 premium diesel rose by 2 to 8.10 UAH per litre depending on the chain, while regular A-95 was mostly flat or up 1–1.55 UAH. Average diesel stood at about 102 UAH per litre on October 20. Russian strikes on port infrastructure, which force some deliveries onto land routes, add to the cost.

Practical Takeaway for Investors

Chasing an oil spike means buying a price that partly reflects fear. If tensions ease, the premium can disappear faster than it was built, and a late buyer absorbs that drop. The opposite mistake is selling everything on a scary headline just before a calmer day.

Commodities can play a role in a diversified portfolio because they sometimes rise when stocks and bonds suffer from inflation. That role works best as a modest, planned share that you rebalance on a schedule, not as a reaction to the week’s headlines. Before adding exposure, check how much energy you already hold through broad index funds and how the product you use tracks oil, since many commodity funds hold futures rather than barrels.