Americans Paying $100 Billion Price Tag for Iran War at the Pump.

Skyrocketing gas and diesel costs are draining household budgets as conflict drags on.

Remember when filling up your tank didn't feel like taking out a second mortgage? Those days are long gone.

The Iran war has quietly handed American consumers a staggering $100.9 billion bill for gasoline and diesel since late February. That's according to researchers at Brown University who've been tracking the real cost of this conflict on our wallets.

Break that down, and it's about $770 per household. And with fuel prices still climbing, that number's only going up.

"Get ready for the most expensive fall we've ever seen for gasoline, but especially for diesel. And that's going to pump up inflation across the board," Tom Kloza, chief energy adviser at Gulf Oil, told CNN over the weekend.

Gas Prices: Bad, But Could Be Worse

Tuesday saw gas prices hit a three-month high above $4.15 a gallon, according to AAA. That made this past Labor Day the most expensive on record.

Compare that to last year's $3.20, or the $2.98 we were paying before the war started. Sure, we're not hitting the post-war peak of $4.56 from May, or the all-time record of $5.02 from 2022. But that's cold comfort when you're watching the numbers tick up at the pump.

The Brown University researchers figured out these costs by comparing what we're actually paying against what prices would likely be if there were no war. The difference? A whopping $55 billion extra on gas alone – that's $422 per household.

Diesel Crisis: We've Never Seen Anything Like This

Here's where things get really ugly.

Diesel – that stuff that keeps our trucks rolling, our trains moving, our tractors farming, and our boats shipping – has never been more expensive. Ever.

The national average hit $5.90 a gallon, up from $3.76 when the war kicked off. That blows past the previous record set in 2022.

Americans are shelling out an extra $46 billion on diesel – about $348 per household. And diesel prices have jumped more than 60% this year, putting it on track for the biggest annual increase since AAA started keeping track back in 2000.

Patrick De Haan from GasBuddy warned on X that diesel "could blow past" $8 a gallon in California. And yep, AAA confirms California's already at a record $7.83. Some gas station pumps literally can't even display prices that high.

$100 Oil on the Horizon:

If you think it's bad now, some analysts say brace yourself.

Goldman Sachs just raised its December price forecast for Brent crude to $85 a barrel, up $5 from their previous estimate. They're now predicting Brent will average $80 for all of 2027.

But here's the scary part: Goldman warns Brent could top $120 if Gulf production stays well below pre-war levels. Brent crude is already flirting with $100 a barrel – a level it hasn't settled above since July 23.

The Refinery Bottleneck Nobody's Talking About

The problem isn't just expensive crude oil. It's that we can't turn it into fuel fast enough.

Three of the world's four major refining hubs – the Middle East, Russia, and China – have been taken offline by either war or export restrictions. US Gulf Coast refineries are running at full tilt trying to make up the difference.

"This is a quiet but very, very concerning crisis right now," Kloza said. "People across the country are gonna pay a fortune."

Inflation Warning: What This Means for Your Wallet

With inflation already stuck above the Federal Reserve's 2% target, Friday's Consumer Price Index report is expected to show prices climbed 3.4% year over year. The Fed is seriously considering another interest rate hike at their meeting next week.

Translation? Everything's getting more expensive, and borrowing money is about to cost more too.

Trump's Promise: Lower Prices Are Coming?

President Trump, who spent the 2024 campaign hammering Biden-era prices and promising cheap energy again, is taking a hit from these record highs.

But he's staying optimistic. "Oil prices will drop precipitously...when we WIN the war with Iran," he posted on Truth Social Monday night.

Whether that's a promise he can keep remains to be seen. For now, Americans are just trying to figure out how to afford their next trip to the pump.