American households have spent a combined $100.9 billion extra on gasoline and diesel since the Iran conflict began in late February 2026, according to CNN Business. That works out to roughly $770 per household on average — but that average masks a much steeper bill for anyone driving a truck, SUV, or other thirsty vehicle, and a much smaller one for hybrid owners.

The National Numbers

Of that $100.9 billion total, CNN’s reporting breaks it down as $55 billion in extra gasoline spending (about $422 per household) and $46 billion in extra diesel spending (about $348 per household). The national gas price has climbed from a pre-war baseline of $2.98 a gallon to more than $4.15 a gallon, a three-month high, after peaking near $4.56 in May. Diesel has moved even more sharply, from $3.76 a gallon when the conflict started to a national average of $5.90 — and $7.83 in California, according to CNN’s data, which draws on AAA and GasBuddy pricing along with a war-cost tracker from Brown University’s Watson School of International and Public Affairs. Current pump prices can be checked directly through AAA’s national gas price tracker.

What It Actually Costs by Vehicle Type

The $422-per-household gasoline figure is a blended national average across every household, regardless of what they drive. Translate that into real ownership terms and the gap widens fast. The roughly $1.17-a-gallon jump from the $2.98 pre-war baseline to today’s $4.15 hits a full-size truck or SUV owner averaging around 18 mpg and 12,000 miles a year — about 667 gallons annually — for close to $780 in added fuel costs this year alone. A midsize sedan owner at 25 mpg and the same mileage, burning about 480 gallons, is looking at roughly $560 extra. A hybrid owner averaging 45 mpg and burning around 267 gallons a year absorbs a comparatively modest $312. These are illustrative estimates built on the price movement CNN and AAA have documented, not official per-vehicle figures, but the gap between a truck and a hybrid is real and it’s roughly two-and-a-half times.

Key Points

• $100.9 billion combined extra US gasoline and diesel spending since the Iran conflict began, per CNN’s reporting.
• Gasoline up from a $2.98 pre-war baseline to over $4.15 a gallon nationally; diesel up from $3.76 to $5.90.
• Truck and SUV owners are absorbing the largest dollar impact simply because they burn more fuel per mile driven.
• Goldman Sachs is projecting Brent crude around $85 a barrel in December, with a scenario as high as $120 if Middle East production stays suppressed, per CNN.

Where This Leaves Drivers

Diesel’s spike matters beyond personal trucks — it’s also embedded in the cost of everything shipped by freight, which eventually shows up in vehicle prices, parts costs, and dealer service rates. For now, owners of larger trucks and SUVs are simply the ones writing the biggest checks at the pump each week, and unless oil prices retreat from current levels, that gap between what a truck costs to fuel and what a hybrid costs to fuel is only going to keep widening through the rest of 2026.