Rising diesel costs continue to create additional pressure across the freight market as geopolitical instability surrounding the war in Iran disrupts crude oil movement through the Strait of Hormuz. Fuel markets remain extremely volatile, and the logistics industry is closely monitoring further developments as conditions continue evolving week by week.
Diesel Prices Continue Rising

The chart above highlights the rapid movement in diesel and crude oil pricing following disruptions tied to the conflict in Iran. The Strait of Hormuz remains one of the most critical shipping lanes for global crude oil movement, and any disruption there quickly impacts energy markets worldwide.
Crude oil futures serve as the market’s benchmark for where oil prices are expected to move next. These exchange traded contracts, primarily traded through NYMEX, directly influence global energy pricing and quickly impact diesel and gasoline costs across transportation markets.
Because crude oil makes up a substantial portion of diesel production costs, fluctuations in futures pricing immediately begin working their way into transportation costs nationwide.
The United States may be an energy exporter, but domestic diesel pricing is still heavily influenced by global crude markets. Roughly 40% to 60% of diesel pricing is directly tied to crude oil costs.
At the same time, the National Truckload Index remains approximately 30% higher than this time last year, signaling that transportation pricing overall continues operating at significantly elevated levels.
Fuel Costs Continue Pressuring Carrier Operations
Diesel prices paid at the pump have increased dramatically over the past several months. The Diesel Truck Stop Actual Price Per Gallon increased from $3.81 in January to $5.52 nationally, representing a $1.71 per gallon increase over the past four months.
For carriers, these increases create substantial operational pressure.
A truck operating with a 300 gallon fuel tank would have previously spent approximately $1,143 per fill-up at January pricing levels. At current diesel pricing, that same fill-up now costs roughly $1,656.
That represents an increase of approximately $513 per week in operating expense assuming one fill-up per week. Annualized, that equates to roughly $26,676 in additional yearly operating costs for a single truck.
While these numbers are illustrative, they demonstrate how quickly rising fuel costs impact carrier profitability and operating flexibility. As diesel prices rise, transportation costs throughout the supply chain rise alongside them.
Fuel Surcharges Continue Adjusting Higher

The chart above from the U.S. Energy Information Administration highlights the most recent increase in national average diesel pricing.
The EIA remains one of the primary benchmarks used throughout the trucking industry for calculating fuel surcharge programs. These fuel surcharges allow contracted freight pricing to fluctuate alongside diesel markets without requiring constant renegotiation of base contract rates.
Most contracted freight pricing follows a structure of:
Line Haul + Fuel Surcharge = All In Rate
As diesel prices rise, fuel surcharges rise alongside them, directly increasing transportation costs for shippers across the market.
The EIA updates national diesel pricing weekly every Tuesday, making it one of the most closely watched indicators throughout the transportation industry during periods of fuel volatility.
With crude oil markets remaining unstable and diesel prices continuing to fluctuate rapidly, fuel will likely remain one of the largest contributors to elevated freight costs moving forward.
Learn more about how Integrity Express Logistics can help you navigate these roads.
Author
Brian Seven – Sales Engagement Manager
