Petroleum Market  05.29.2026

WHAT'S THE LATEST? 

05/29/2026 10:30 AM EST -  Oil markets are ending the week on a softer note as hopes for a longer US-Iran ceasefire take some heat out of crude prices. WTI is down about $1.30/bbl this morning and on track for a weekly drop of more than $9/bbl, after reports that Washington and Tehran have reached a preliminary deal to extend their ceasefire by 60 days and reopen talks over Iran’s nuclear program. President Trump has not yet signed off, keeping traders cautious rather than fully relieved. 

 Still, the market is far from calm. The US announced fresh sanctions targeting Iran’s military-linked oil sales, while Strait of Hormuz transits remain depressed three months into the war. Supply concerns are also being reinforced elsewhere, with Ukrainian drones striking Russian fuel and energy facilities overnight. Meanwhile, US inventories tightened again, with crude, gasoline, and distillate stocks all drawing last week and sitting below seasonal averages. For now, diplomacy is pressuring prices, but the supply backdrop remains fragile. 


CHECK OUT THE LATEST ANALYSIS:

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Week in Review – Oil Prices Ease as Ceasefire Talks Gain Momentum

Oil prices fell Friday as hopes for a longer U.S.-Iran ceasefire weighed on risk premiums, putting WTI on track for a weekly loss of more than $9/bbl. Brent and WTI were headed for their steepest weekly declines since early April after reports of a preliminary 60-day ceasefire extension.

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Oil Markets Are Swinging Wildly. Is It Time to Lock in Fuel Prices?

One headline out of the Middle East can move oil markets within minutes, making fixed-price fuel strategies a smart way to manage volatility. In recent months, the Iran war has driven sharp price swings tied to tanker attacks, sanctions, and threats involving the Strait of Hormuz. 

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What’s That: Kharg Island

Most people have never heard of Kharg Island, but the small Iranian island sits at the center of one of the world’s most critical oil export systems. As Iran’s main crude export hub, Kharg handles the vast majority of the country’s oil shipments, making it a key focal point in the ongoing Iran war and a growing concern for global energy markets.

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Did You Miss the Boat on Lower Fuel Prices? 

Prices are up across the country - wrecking your fuel budget. Is it too late to lock in at a lower price? Turns out, you can use fixed price to lock in a price much lower than current levels, helping you spread your risk out into the future and protecting your bottom line. 

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Urea Volatility Pushes DEF Prices Higher as Global Supply Tightens

Although fuel prices have been the focus of headlines, DEF prices are just as volatile. The shift is being driven by rapid changes in the global urea market, where disruptions tied to Middle East tensions are tightening supply and accelerating cost increases.

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Rising Lubricant Prices: What’s Behind the Shift?

The conflict with Iran has brought tremendous pressure across the oil industry. From nat gas and crude oil to gasoline, diesel, and lubricants, the reduction of traffic through the Strait of Hormuz has had significant price impacts for fleets.  

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Higher Fuel Prices, Higher Risk: Why Fuel Theft Is on the Rise 

With fuel prices returning to near record levels, the threat of loss has been mounting as well. The recent escalation between the U.S. and Iran, and the resulting 40%+ increase in fuel prices, creates a situation that isn’t just problematic for budgets, but also for fuel theft. 

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What’s That: Floating Storage

What happens when the world keeps producing oil, but tankers can no longer deliver it? Under normal conditions, oil flows through a seamless chain of operations in which it is pumped, shipped, and refined. But when key transit routes tighten or shut down, this system breaks down.

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What's That: Bab el-Mandeb Strait

The Bab el-Mandeb is closely linked to the Strait of Hormuz, as both form a continuous maritime corridor for global energy trade. Under normal conditions, Hormuz handles about 20 million barrels of oil per day, while the Bab el-Mandeb carries around roughly 12% of global oil shipments.

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IMPACT ON FUEL

  • Shutdown of the Strait of Hormuz - which transits 20% of the world’s oil

  • Limited capacity on Abu Dhabi pipeline & East-West crude pipeline 

  • Attacks on Middle East refineries, oil fields, and shutdowns mean that supply won't rebound 100% after the Strait re-opens

  • With a 20-35 day route time, the final tankers leaving the Strait of Hormuz before March 1 are now reaching their delivery points - meaning supply disruptions will quickly escalate. 

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IMPACT ON DEF

Urea flows through the Persian Gulf have been disrupted, as has LNG, which is a major part of the supply chain for converting nitrogen into Urea. The impact on US DEF markets is mounting. 

  • About 25–30% of global urea exports come from the Arab Gulf.

  • NOLA urea prices increased sharply from the mid $400s in late February to almost $700 by late March, up 46%.

  • Spot supply availability has decreased. Mansfield maintains adequate supply availability to ensure our customers receive the DEF they need. 

  • Monthly average urea prices rose from $449.25/ton in February to $598/ton in March, driving a 20+ cpg increase in DEF pricing. 
  • North America is producing urea at high capacity but cannot fully replace lost imports, especially during peak demand periods. 

GET AHEAD OF DISRUPTIONS


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FIXED PRICE

With uncertainty ahead, it's important to have a strategy. With a fixed price solution, you can bring the future's lower prices forward to today, while maintaining flexibility if the market falls. Find out how your business can immediately lower its prices and spread out risk. 

 

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DEF SUPPLY

Ensure you have the DEF you need to keep your fleet running. The Middle East is a leading producer of Urea, the main ingredient in DEF, causing prices to rise. Make sure you've locked in your DEF supply and storage to avoid supply tightness. 

 

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FUEL CONSULTATION

With prices rising, fleets are considering all kinds of methods to reduce costs - from investing in better storage to seeking efficiency gains. Speak with a fuel expert to do a comprehensive review of your fuel spend  and see if there are ways you could be saving today.