Brent at $107: What the Hormuz Oil Shock Costs You

On Saturday, President Trump rejected Iran's proposal to reopen the Strait of Hormuz within seven days, calling the offer unacceptable. By Tuesday morning, Brent crude futures were trading at $106.77 a barrel, according to Reuters — up from roughly $72 before the US and Israel attacked Iran in late February. I have been tracking this conflict's economic fallout since February, and this week's move is the sharpest single escalation in energy costs so far.

This is not just a commodities story. The national average for a gallon of regular gasoline is now $4.48, per AAA figures reported by the New York Post — up from $2.98 before the war and $3.13 at this time last year. That is a 50 percent increase in the price of getting to work.

The numbers behind the spike

Brent crude, the global benchmark, has climbed about 48 percent since late February: roughly $72 then, $106.77 on Tuesday morning (Reuters). West Texas Intermediate, the benchmark most closely tied to US gasoline, was at $93.94. Bloomberg data via Moneyweb puts Brent up more than 70 percent this year, and the September gain alone is around 20 percent, per Barron's.

The pain is worse for grades closer to the conflict. Abu Dhabi's Murban crude jumped 3.4 percent to $116.90 on Tuesday, reflecting tighter Gulf supplies and rising freight costs after weeks of shipping disruptions, the Dubai Standard reported.

Figure: Brent crude and US average gasoline prices, pre-war versus September 29, 2026. Sources: Reuters; AAA via New York Post.

Why one strait moves world prices

The Strait of Hormuz is 21 miles wide at its narrowest point, according to the Energy Information Administration — and about one-fifth of the world's seaborne petroleum flows through it. When that passage chokes, the whole market feels it.

Right now it is barely functioning. Commercial shipping traffic through the strait is running 75 to 90 percent below pre-conflict levels, according to the UK Maritime Trade Operations Centre, cited by the Dubai Standard. The disruption has continued since fighting began on February 28, forcing tankers to sit idle, take longer routes, or use a limited number of authorized corridors.

Each side is squeezing a different valve. Iran's leverage is the waterway itself. Washington's is economic: Treasury Secretary Scott Bessent told Fox News that about 15 million barrels of Iranian oil remain in the last shipments headed to China and that "probably within two weeks, Iran will have very little left to trade."

Figure: The Gulf littoral states whose seaborne crude must transit the Strait of Hormuz. Sources: EIA; UK Maritime Trade Operations Centre; Reuters.

What it costs you

Do the fill-up math with me. At $1.50 more per gallon than February, a 15-gallon tank costs $22.50 more to fill than it did seven months ago. If you fill up twice a month, that is $540 a year just in the direct gasoline increase.

The indirect costs are the ones economists worry about. Elevated energy costs have been the main driver of inflation for the past few months, the New York Post reported, and analysts warn they bleed into food, apparel, and freight. The bond market agrees: the 10-year Treasury yield hit 5.263 percent and the 30-year reached 5.579 percent as investors priced in inflation staying higher for longer — and the Federal Reserve issuing more rate hikes this year. On Monday the Dow sank 349 points and the S&P 500 fell 0.8 percent under the weight of the oil rally.

What could bring prices back down

There are three genuine relief valves, and all three are in motion. Qatari mediators are holding separate talks with Iran's foreign minister and the US side this week on an amended version of Tehran's seven-day proposal (Reuters; Business Post Nigeria). Saudi Arabia has restored about half the flows through its cross-country East-West pipeline — at least 3.5 million barrels a day — after drone strikes halted it earlier this month (Bloomberg via Moneyweb). And crude exports from key Middle East producers rebounded in September to 12.8 million barrels per day, the highest since the war started, per Kpler data cited by Business Post Nigeria.

But the politics cut the other way. The Wall Street Journal reported that Trump has told aides he expects to resume bombing Iranian targets after the November midterm elections, and Iranian officials have privately said they see no deal before then either (Bloomberg via Moneyweb). My read: plan for elevated energy prices through the winter fuel season, and treat any single-day dip as noise.

FAQ

Why are US gas prices rising if America produces its own oil? Crude is priced on a global market. WTI, the US benchmark, moves with Brent, and refined products like gasoline trade globally too — when the world price jumps, the pump price follows no matter where the molecules came from.

How high could gasoline go from here? None of the reporting I reviewed this week put a credible number on a ceiling. The direction depends almost entirely on the strait: a real reopening would unwind the spike fast, while escalation into winter would push it higher.

Is the Strategic Petroleum Reserve cushioning this? Barely — it is a spent tool for now. Analyst Nic Puckrin of Coin Bureau noted Monday that the SPR sits at its lowest level since 1982, via the New York Post.

What does the 21-mile figure actually mean? That is the EIA's figure for the strait's narrowest width. The shipping lanes in each direction are far narrower, which is why even the threat of disruption moves markets.

Will this hit my heating and electric bills too? Probably. Natural gas rose 0.9 percent to $3.13 on Tuesday per the Dubai Standard, and traders are already pricing winter fuel demand into crude. If you heat with oil or gas, budget for a more expensive winter.