Stock Market Today: Oil Is Now Close to Prewar Prices, Pushing Gasoline Below $4
**Subtitle:** *From a $4.56 peak to a $3.99 average, the Iran deal is reshaping markets. Here is why Wall Street is celebrating—and why the relief at the pump might be short-lived.*
**Reading Time:** 8 Minutes | **Category:** Markets & Economy
## Introduction: The $4.56 Nightmare Finally Ends
Just one month ago, filling up your tank felt like a luxury. The national average for a gallon of regular gasoline hit **$4.56 on May 21**, the highest level during the Iran conflict. Diesel surged past **$5.60**. Families canceled road trips. Truckers faced impossible margins. The summer driving season looked like a financial disaster.
Then, everything changed.
On Thursday, June 18, 2026, the average cost of a gallon of gasoline dipped below **$4 for the first time in more than two months**, according to the American Automobile Association (AAA). The national average settled at **$3.999 per gallon**.
The catalyst? A landmark interim agreement between the United States and Iran to end their conflict and reopen the **Strait of Hormuz**, the critical waterway through which roughly **20% of the world's oil supply** passes.
The market reaction has been swift and powerful. U.S. stocks are rebounding, oil is sliding toward prewar levels, and investors are piling back into risk assets. The S&P 500 opened **1.19% higher** at 7,508.44, the Nasdaq Composite surged **1.5%** to 26,425.68, and the Dow Jones Industrial Average added nearly **400 points**.
In this deep-dive, we will break down the Iran deal's impact on oil and gas, explain why the "rockets and feathers" phenomenon matters for your wallet, and analyze what this means for the stock market and the Federal Reserve's next move.
> **The Bottom Line Up Front:** The U.S.-Iran interim agreement has sent oil prices tumbling toward prewar levels and pushed gasoline below $4 for the first time since March. Wall Street is celebrating, with the Nasdaq surging 1.5% and chip stocks leading the charge. But experts warn that prices remain elevated above prewar averages, and the "rockets and feathers" effect means the relief at the pump could be slower than the pain. The Fed's hawkish pivot and Tropical Storm Arthur also loom as potential headwinds.
## Part 1: The Iran Deal—How the Strait of Hormuz Reopened
The turning point came on Wednesday, June 17, 2026, when the United States and Iran signed an interim memorandum of understanding. President Donald Trump confirmed the agreement had been signed and would pave the way for a rapid reopening of the Strait of Hormuz.
### The Terms of the Agreement
According to reports, the deal includes several key provisions:
- **End of hostilities**: Both sides committed to de-escalating tensions
- **Reopening of the Strait of Hormuz**: Full maritime traffic through the waterway is expected to return within 30 days
- **Sanctions relief**: The U.S. will waive sanctions on Iranian oil
- **No transit fees**: Iran will allow vessels to pass through the strait without fees during a 60-day negotiation period
The agreement was signed remotely, with both sides committing to a 60-day negotiation period to finalize a more permanent arrangement.
### The Market's Immediate Response
Energy traders showed signs of cautious confidence. Brent crude, the global benchmark, fell to about **$77 a barrel**, approaching prewar levels of roughly **$72.50**. U.S. West Texas Intermediate (WTI) dropped to **$74.99 a barrel**, down 2.34%.
The price action was dramatic. Oil prices fell more than $1 per barrel on Thursday, extending earlier losses. Brent crude futures dropped **$1.64, or 2.06%, to $77.91 a barrel**. Earlier in the session, prices had already weakened following reports of a temporary U.S.-Iran understanding.
**The Human Touch:** For the oil trader, the deal was a sell signal. For the American driver, it was a lifeline. For the tanker captain, it was a green light to sail. The reopening of the Strait of Hormuz is not just a geopolitical event—it is a personal finance event for millions of Americans.
## Part 2: Gasoline Below $4—A Psychological and Economic Milestone
The drop below $4 carries enormous weight, both politically and economically.
### The Numbers
| Metric | Value |
| :--- | :--- |
| **National Average (June 18)** | $3.999 per gallon |
| **Peak During Conflict (May 21)** | $4.56 per gallon |
| **Drop Since Peak** | ~$0.56 (12%) |
| **Three-Week Decline** | Consecutive weekly drops |
| **States Below $4** | 28 states |
| **Cheapest State (Indiana)** | ~$3.40 per gallon |
| **Most Expensive (California)** | ~$5.64 per gallon |
*Sources: AAA, GasBuddy*
### The "Rockets and Feathers" Phenomenon
While the drop is welcome, the decline has been slower than the rise. This is the "rockets and feathers" effect—where gasoline prices rise quickly (like a rocket) when crude oil spikes, but fall slowly (like a feather) when crude drops.
The Federal Reserve Bank of St. Louis has documented this phenomenon extensively. When crude oil prices rise, retailers pass on the cost increase almost immediately. When crude prices fall, they are slower to lower their prices.
**Why?**
- **Inventory costs**: Retailers may have purchased gasoline at higher wholesale prices
- **Profit margins**: Many cut into their own profits during the war and are now trying to rebuild them
- **Consumer behavior**: Retailers know that consumers notice price increases more than decreases
### The Prewar Reality Check
Despite the milestone, gas prices remain **about a third higher than before the war began**. Before the conflict, the national average was roughly **$2.98 per gallon**. Experts say a return to prewar levels is unlikely any time soon.
GasBuddy's Patrick de Haan predicts the national average should head toward **$3.70 per gallon** now that the deal has been signed. Diesel will soon fall below **$5 per gallon** as well.
**The Human Touch:** For the family planning a summer road trip, the difference between $4.56 and $3.99 is roughly $11 on a 20-gallon fill-up. It is not life-changing. But it is a sign that the worst may be behind us. And that is worth celebrating.
## Part 3: Stock Market Reaction—Wall Street's Relief Rally
The Iran deal has triggered a powerful rebound in U.S. stocks, erasing much of Wednesday's Fed-induced selloff.
### The Opening Numbers
| Index | Opening Change | Opening Level |
| :--- | :--- | :--- |
| **S&P 500** | +1.19% | 7,508.44 |
| **Nasdaq Composite** | +1.5% | 26,425.68 |
| **Dow Jones** | +0.76% (~400 pts) | 51,883.37 |
*Source: NDTV Profit*
### The Tech Rally
The tech world pared Wednesday's losses, led by a stunning surge in **Intel Corp.** , which soared more than **11% to a high of $135**. The recovery came after President Trump announced that the semiconductor company had agreed to a deal with Apple to design and build chips in the U.S..
Other chipmakers felt the rally's ripple:
- **Micron Technology**: Rose as high as 5%
- **Advanced Micro Devices (AMD)** : Rose as high as 6%
Investors are piling into "usual favorites": chip makers and other companies tied to the AI buildout. Contracts tied to the Nasdaq 100 jumped about 1.5%, putting stocks on course to reverse some of yesterday's declines.
### The Fed's Hawkish Shadow
Despite the euphoria, the Federal Reserve's hawkish pivot looms large. On Wednesday, the Fed delivered a stronger-than-expected pivot toward raising rates in the future. Traders now see a **64% chance of a rate hike by September**, versus roughly 29% before yesterday's meeting.
Still, that is not deterring investors, who are embracing risk in the wake of the Iran deal.
**The Human Touch:** For the investor, the relief rally is a reminder that geopolitics and monetary policy are the two great forces shaping markets. The Iran deal is a tailwind. The Fed is a headwind. The question is which force will prevail.
## Part 4: The Outlook—What Comes Next
Despite the optimism, several factors could keep prices elevated or even push them higher again.
### The "Slow Reopening"
Even with the deal signed, the Strait of Hormuz will not return to normal overnight. The agreement provides for shipping through the waterway to return to **full capacity within 30 days**. That is a timeline, not an instantaneous fix.
### The Summer Demand Surge
AAA has warned that "uncertainty lingers over when the Strait of Hormuz will fully reopen and resume traffic. That unknown means oil prices will likely not decrease dramatically as summertime gasoline demand starts going up".
### Tropical Storm Arthur
Gasoline prices may also face another coming headwind from **Tropical Storm Arthur**, expected to impact the U.S. Gulf Coast, home to the largest refinery complex in the U.S.. A major storm could disrupt refining and send prices higher.
### The $70 Question
Long-term oil prices don't show signs of falling back below the pre-war **$70 a barrel** level any time before the next decade. The "new normal" is higher than the old normal.
### The White House's Optimism
White House Press Secretary Karoline Leavitt said earlier in the war that prices would "drop rapidly, potentially even lower than they were prior to the start of the operation". So far, that prediction has not fully materialized—but the trend is in the right direction.
**The Human Touch:** For the driver, the outlook is cautiously optimistic. Prices are falling. The trend is downward. But the journey will be gradual. And unexpected events—hurricanes, geopolitical flare-ups, refinery outages—could change the equation in a hurry.
## Frequently Asked Questions (FAQ)
**Q: Why did gas prices fall below $4?**
A: The U.S. and Iran signed an interim agreement to end their conflict and reopen the Strait of Hormuz, through which roughly 20% of the world's oil passes. This has eased supply concerns and sent oil prices tumbling.
**Q: How much is the national average for gas right now?**
A: As of Thursday, June 18, 2026, the national average is **$3.999 per gallon**, according to AAA.
**Q: How high did gas prices get during the Iran conflict?**
A: The national average peaked at **$4.56 per gallon on May 21**.
**Q: Will gas prices keep falling?**
A: GasBuddy's Patrick de Haan expects the national average to head toward **$3.70 per gallon** now that the Iran deal has been signed. However, the pace of decline may be slow due to the "rockets and feathers" phenomenon and summer driving demand.
**Q: What is the "rockets and feathers" phenomenon?**
A: It is the observation that gas prices rise quickly (like a rocket) when oil prices increase but fall slowly (like a feather) when oil prices decrease.
**Q: Are gas prices back to prewar levels?**
A: No. Gas prices remain about **a third higher than before the war began**. Experts say a return to prewar levels is unlikely any time soon.
**Q: How did the stock market react to the Iran deal?**
A: The S&P 500 opened 1.19% higher, the Nasdaq surged 1.5%, and the Dow added nearly 400 points. Chip stocks led the charge, with Intel soaring more than 11%.
**Q: What is the Fed's role in all of this?**
A: The Fed delivered a hawkish pivot on Wednesday, with traders now seeing a **64% chance of a rate hike by September**. This could eventually weigh on stocks, but for now, the Iran deal is the dominant force.
**Q: Could gas prices go back up?**
A: Yes. Several factors could push prices higher again, including a slow reopening of the Strait of Hormuz, summer driving demand, Tropical Storm Arthur, or a breakdown in the ceasefire.
**Q: What is the White House's position on gas prices?**
A: White House Press Secretary Karoline Leavitt said prices would "drop rapidly, potentially even lower than they were prior to the start of the operation".
**Q: Which states have the cheapest gas?**
A: Indiana is the cheapest at about **$3.40 per gallon**. Texas, Tennessee, Mississippi, and South Carolina are also among the least expensive markets.
**Q: Which state has the most expensive gas?**
A: California remains the most expensive state at roughly **$5.64 per gallon**.
**Q: How long will it take for the Strait of Hormuz to fully reopen?**
A: Under the agreement, shipping through the waterway is expected to return to **full capacity within 30 days**.
**Q: What does this mean for the summer driving season?**
A: Lower gas prices are welcome news for summer travelers. However, AAA has warned that uncertainty over the Strait's reopening means prices may not decrease dramatically as demand goes up.
## Conclusion: The Relief Is Real—But the New Normal Is Higher
We started this article with a number: **$4.56**. That was the peak of gas prices during the Iran conflict.
We end with a different number: **$3.999**. That is the national average today—the first time below $4 in more than two months.
The Iran deal is a genuine milestone. It has reopened the Strait of Hormuz, unleashed a wave of oil supply, and sent prices tumbling. For American drivers, the relief is real—and it is coming just in time for the summer driving season.
But the "new normal" is not the old normal. Gas prices are still about a third higher than they were before the war. The "rockets and feathers" effect means that prices will fall more slowly than they rose. And the supply chain lags mean that today's lower oil prices may not fully translate into lower gas prices for weeks.
**For the Driver:**
Fill up your tank and enjoy the relief. But do not expect a return to $3 gas anytime soon. The trend is downward, but the journey will be gradual. And keep an eye on the weather—hurricanes can change the equation in a hurry.
**For the Investor:**
The relief rally is real. But the Fed's hawkish pivot is a headwind. Watch the oil price. It will tell you which direction the market is heading.
**For the Citizen:**
The Iran deal is a reminder that geopolitics and your wallet are connected. What happens in the Middle East affects what you pay at the pump. The ceasefire is a win for consumers—but it is fragile. And if it breaks, prices will spike again.
**The Bottom Line:**
Oil is now close to prewar prices, pushing gasoline below $4 for the first time since March. The U.S.-Iran interim agreement has reopened the Strait of Hormuz, sending Brent crude toward $77 a barrel and the national gas average to $3.999. Wall Street is celebrating, with the Nasdaq surging 1.5% and chip stocks leading the charge. But experts warn that prices remain elevated above prewar averages, and the "rockets and feathers" effect means the relief at the pump will be gradual. The Fed's hawkish pivot and Tropical Storm Arthur also loom as potential headwinds.
The relief is real. But the new normal is higher.
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*Disclaimer: This article is for informational purposes only. It does not constitute financial advice. Gas prices and stock markets are volatile; always consult a licensed professional before making investment decisions.*
