WTI Midland crude just hit $103 a barrel, and if you think this is just an abstract number that only matters to oil traders, let me translate it into English: everything is about to get more expensive.

Gas, groceries, plane tickets, shipping costs—oil is baked into the price of basically everything you buy. And right now, with the Strait of Hormuz effectively closed due to the Iran conflict, we're watching a supply shock play out in real time.

Here's what you need to understand: this isn't a temporary spike that'll blow over in a few weeks. According to analysis from OilPrice.com, the strategic cushion is gone. The spare capacity and reserves that usually smooth out these disruptions? They're either depleted or inaccessible. Which means the pain is just beginning.

Why This Is Different

We've seen oil spikes before. Usually, they're driven by short-term disruptions—a hurricane shuts down Gulf Coast refineries, OPEC cuts production, a pipeline gets attacked. The market adjusts, prices stabilize, life goes on.

This is different. The Iranians aren't just temporarily disrupting supply—they're demonstrating that they can keep the Strait of Hormuz closed for months if they want to. And about 20% of the world's oil supply flows through that narrow waterway.

The math is brutal. If 20% of supply is cut off and demand stays constant, prices don't go up 20%—they go up a lot more, because the market has to ration who gets the remaining supply. That's Econ 101, and right now we're watching it play out in your gas tank.

What This Means for Inflation

Remember when the Fed was talking about getting inflation back down to 2%? Yeah, about that.

Every $10 increase in oil prices adds roughly 25-30 cents to the national average gas price. So if you were paying $3.50 a gallon a few months ago, you're probably looking at $4.50+ now, and heading higher.

But it's not just gas. Oil is a key input for: - Transportation costs: Everything you buy online or in stores got shipped using diesel - Plastics and packaging: Derived from petroleum - Fertilizer: Natural gas (often found with oil) is a key ingredient - Airline tickets: Jet fuel is a refined petroleum product

So even if you drive an electric car, you're not escaping this. Your grocery bill is going up. Your Amazon orders are going up. Your vacation is going up. It's all connected.

What This Means for the Fed

Here's where it gets really uncomfortable. The Federal Reserve has been keeping interest rates elevated to fight inflation. But oil-driven inflation is a special kind of problem, because it's a supply shock, not a demand problem.

The Fed can't fix a closed Strait of Hormuz by raising rates. All they can do is crush demand elsewhere in the economy to offset the inflation from energy. Which means: higher rates for longer, which means your mortgage costs more, your car loan costs more, and companies start laying people off to preserve cash.

This is called stagflation—when you get inflation and economic weakness at the same time. And it's the scenario investors fear most, because there's no easy Fed policy fix.

What Should Investors Do?

If you're holding energy stocks, congratulations—you're probably one of the few people in the green right now. Oil producers, refiners, and service companies all benefit from higher prices.

For everyone else, this is a risk management moment. High oil prices are historically bad for: - Consumer discretionary stocks: People with less money for gas have less money for everything else - Airlines and shipping companies: Their costs just exploded - Highly leveraged companies: Higher rates + weaker economy = trouble

They're historically good for: - Energy companies: Obviously - Defensive stocks: Utilities, consumer staples, healthcare - Commodities: Gold tends to do well during geopolitical chaos

The Big Picture

This war isn't ending when Trump decides he's had enough. It ends when Iran decides the economic damage is sufficient to make the West think twice about future military action. And they've demonstrated they have the leverage to keep this going as long as they want.

Which means oil prices are likely to stay elevated for months, not weeks. Plan accordingly. Budget for higher gas and grocery costs. If you're thinking about a big purchase that requires financing, lock in rates now before the Fed hikes again. And if you're investing, think defensively.

Because $103 oil isn't just a number on a screen. It's a tax on the entire economy, and we're all about to pay it.