Oil Fell on Iran's 7-Day Hormuz Offer. Here's What a Reopening Would Mean for Energy Stocks, and Why Not All of Them Would Fall.
- On September 25, 2026, Iranian Foreign Minister Abbas Araghchi proposed a seven-day plan: US steps under the June memorandum of understanding on days 1-5, the Strait of Hormuz reopening on day 6, and negotiations on day 7.
- President Trump rejected the proposal. The administration said it would not lift its naval blockade, unfreeze Iranian assets or ease oil-export sanctions.
- WTI crude settled down 2.33% at $92.41 a barrel on Sept. 25. Brent fell more than 2%, after gaining more than 17% in September.
- The conflict began in late February 2026. Brent peaked near $118 in late March, fell to about $70 in early July, and rebounded above $100 in late July and September.
- US diesel averaged $6.53 a gallon on Sept. 22, up 77% from a year earlier.
A peace offer, a quick no, and a falling oil price
On Friday, September 25, Iran's foreign minister, Abbas Araghchi, laid out a step-by-step plan to reopen the Strait of Hormuz, the narrow passage that normally carries about a fifth of the world's oil.
- Days 1 to 5: the US takes steps already agreed in a June memorandum of understanding
- Day 6: the strait reopens
- Day 7: negotiations begin
"The seven-day timeline will start as soon as the United States accepts this plan," Araghchi said.
Oil fell fast. WTI settled down 2.33% at $92.41 a barrel. Then President Trump rejected the proposal. The White House said it won't lift its naval blockade, unfreeze Iranian assets or ease sanctions on Iranian oil.
So nothing is settled. But the market's reaction shows how much of today's oil price depends on Hormuz.
How we got here
- Late February: war with Iran begins; the Strait of Hormuz closes.
- Late March: Brent peaks near $118.
- June 17: a US-Iran memorandum of understanding raises hopes. Brent falls to about $70 by early July.
- July: the deal collapses into renewed fighting; Brent jumps back above $100.
- September: Brent gains more than 17% in the month.
The June episode is the best guide to what a real reopening could do: oil fell by roughly 40% from its peak.
What a reopening would do to each part of the energy sector
Oil and gas producers: biggest losers. Exploration and production companies earn more on every barrel when prices are high. A drop from $92 to $70 would cut their revenue per barrel by about a quarter. These stocks usually fall the most.
Integrated majors: hurt, but cushioned. Companies like Exxon, Chevron and Shell produce oil but also refine and sell fuel. Lower crude hurts production profits, but refining can partly offset it.
Refiners: mixed, possibly winners. Refiners buy crude and sell gasoline, diesel and jet fuel. If crude falls faster than fuel prices, their margin, the crack spread, can stay wide. Diesel at $6.53 a gallon, up 77% in a year, shows how tight refined-fuel markets are. See Why US Refiners Are Rallying.
Pipelines and midstream: least affected. Pipelines earn fees based on how much they move, not the price. They behave more like utilities. A reopening that increases global volumes could even help.
Oil services: slow to react. Drilling and services companies depend on how much producers spend. Producers plan budgets on long-term prices, so a short spike or dip changes little.
Tanker companies: mixed. Rerouted shipping has raised tanker rates. Normal traffic through Hormuz would shorten trips and could lower rates.
Why energy stocks never fully priced $100 oil
Energy stocks have lagged the oil price during this shock. Investors expected the crisis to end eventually, so they valued producers on a lower long-term oil price. That means a reopening might hurt energy stocks less than the drop in oil. Many were already priced for $70-$80 oil.
What it means for your portfolio
- S&P 500 investors: energy is a small slice of the index. Lower oil would likely help the overall market by cooling inflation and easing pressure on bond yields.
- TSX investors: energy is one of the TSX's biggest sectors. A big oil drop would weigh on Canadian index funds. See The TSX Record Is an Oil Record.
- Dividend investors: check whether your energy holdings' dividends are covered at $70 oil, not just $92.
- Everyone else: cheaper oil would mean lower gas, diesel and airfare prices, and could reduce the odds of more Fed and Bank of Canada hikes.
The honest uncertainty
There's no deal yet, and the White House has rejected this plan. Reports say fighting could resume after the US midterm elections in November. Oil could spike again on the next attack or plunge on the next peace offer. The practical approach: don't bet your portfolio on one outcome. If energy has grown into an outsized share of what you own, this is a good time to rebalance.
Frequently asked questions
Why did oil prices fall on September 25, 2026?
Iran's foreign minister proposed a seven-day timeline to reopen the Strait of Hormuz, raising hopes that roughly a fifth of global oil supply could flow normally again. WTI fell 2.33% to $92.41. President Trump rejected the proposal, so the price drop reflected hope rather than a deal.
What would happen to oil prices if the Strait of Hormuz reopens?
Prices would likely fall, possibly sharply. When hopes of peace rose in June 2026, Brent fell to about $70 by early July. How far prices fall would depend on how quickly shipping resumes, damage to infrastructure, and whether OPEC+ and governments refill emergency reserves.
Do energy stocks fall when oil prices fall?
Oil producers usually do, because their profits depend directly on the oil price. But refiners, pipelines and some integrated companies react differently. Refiners can benefit from cheaper crude if fuel demand holds. Pipelines earn fees based on volume, so they're less sensitive to price.
How does the oil price affect Canadian investors?
Energy is one of the largest sectors on the TSX, so oil prices move Canadian index funds more than US ones. Lower oil also tends to weaken the Canadian dollar, which raises the value of US holdings in Canadian-dollar terms.
Primary sources
Data & disclaimer: This article is for educational purposes only and is not financial or investment advice. Figures reflect data available as of Sep 26, 2026, and conditions change — always confirm current pricing, rates and rules with the provider before you act. Written by Elizabeta Dimoska. See our editorial standards and disclosure.
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