U.S. Trucking Inefficiency Signals Emerging Headwind for Diesel Demand
The intricate gears of the U.S. supply chain are grinding with increasing inefficiency, a new comprehensive study reveals, posing a significant, albeit nuanced, headwind for future diesel demand. Fresh insights from the 2025 edition of an annual shipper survey, conducted by logistics firm Flock Freight and research specialist Drive Research, highlight a worrying trend: a growing proportion of commercial trucks traversing American highways are doing so with substantial empty space, indicating systemic waste in freight movement.
For investors keenly tracking the pulse of global energy markets, this development is more than just a logistical footnote; it’s a fundamental indicator of potential shifts in fuel consumption patterns within a crucial economic sector. The implications for the refined products market, particularly diesel, are becoming increasingly apparent as the industry grapples with the paradox of a soft freight market driving up operational inefficiencies.
The Stark Reality of Underutilized Capacity
The survey’s findings paint a clear picture of escalating inefficiency. In 2024, a staggering 58 percent of all truckloads moved across the U.S. carried unused trailer space. This figure represents a sharp increase from the previous year’s 43 percent, underscoring a rapid deterioration in freight optimization. To put this into perspective, the average underloaded truck left approximately 34 linear feet of space vacant. This effectively means that for every three trucks on the road, one was practically running empty, burning fuel without transporting its full potential cargo.
This level of underutilization is a direct consequence of current market dynamics. As Chris Pickett, Chief Commercial Officer at Flock Freight, observed, a soft freight market has inadvertently lowered the perceived cost of shipping empty space. When demand for freight services is subdued, carriers and shippers may prioritize flexibility and speed over maximizing load capacity, leading to a less efficient use of resources. While such a scenario might initially seem to imply lower overall fuel consumption due to a weaker economy, the underlying inefficiency suggests that the fuel consumed is not yielding its optimal economic output in terms of goods moved. Should the freight market rebound, and the economic incentive to fill trucks fully returns, the industry would face a reckoning with its current wasteful practices, potentially leading to a more streamlined, and thus less fuel-intensive, logistical footprint.
Beyond Inefficiency: The Financial Toll on Shippers
The survey, which canvassed 1,000 transportation decision-makers across diverse sectors including retail, industrial machinery, food and beverage, and consumer packaged goods, delves deeper than just empty space. It uncovers a complex interplay of priorities and challenges driving these inefficient behaviors. Crucially, on-time delivery emerged as the paramount concern for shippers. The financial penalties for late shipments are substantial, costing large companies an average of $6.2 million annually. This significant financial risk often compels shippers to opt for faster, albeit less efficient, transportation solutions.
Moreover, the specter of fraud and theft looms large, adding another layer of cost and complexity. In 2024 alone, over 1 percent of shipments were impacted by fraud or theft, collectively costing companies nearly $10 million each year. Such risks further complicate logistics planning, pushing decision-makers towards seemingly safer, if less optimal, shipping methods.
The “On-Time, In-Full” Imperative and its Demand Implications
The increasing stringency of “on-time, in-full” (OTIF) requirements imposed by major retailers is a primary driver of the current logistical conundrum. Faced with strict deadlines and the hefty penalties associated with non-compliance, shippers are increasingly gravitating towards full truckload (TL) options, even when the volume of goods does not necessitate an entire trailer. This strategic shift is largely a reaction to the perceived unreliability of less-than-truckload (LTL) services, with the survey indicating that one in six LTL shipments failed to arrive on schedule last year. Consequently, companies are booking full trucks as a perceived guarantee of timely delivery, even if it means paying for and moving empty space.
This behavior creates a peculiar dynamic for diesel demand. On one hand, the underlying soft freight market suggests a broader slowdown in goods movement, which would naturally depress fuel consumption. On the other hand, the inefficient deployment of more trucks than necessary to meet strict delivery windows means that for a given volume of goods, more fuel is being expended than an optimized system would require. Should the industry successfully implement solutions to improve efficiency, the same volume of goods could be moved with fewer trucks or less fuel per unit, translating into a long-term demand headwind for diesel.
Technological Solutions and the Path to Optimized Logistics
Against this backdrop of rising inefficiency, innovative solutions are emerging. Companies like Flock Freight advocate for models such as their Shared Truckload system. This AI-powered approach aims to revolutionize freight logistics by intelligently pooling shipments from multiple shippers onto a single truck. The promise is clear: reduced waste, lower costs, and crucially, reliable on-time delivery.
The Shared Truckload model allows shippers unprecedented flexibility, enabling them to dispatch freight as soon as it’s ready, without the traditional delay of waiting to accumulate a full truckload. Proponents of this system emphasize its ability to cut operational expenses while simultaneously ensuring timely, damage-free delivery, all while maintaining the high service quality typically associated with full truckload shipments. If such optimized, technology-driven logistics solutions gain widespread adoption, the landscape of freight transportation could undergo a significant transformation. This shift would directly challenge the current paradigm of inefficient fuel consumption, pushing the trucking industry towards a leaner, more sustainable operational model. For energy investors, this represents a crucial signal: a more efficient supply chain is inherently a less fuel-intensive one, underscoring the long-term imperative for the oil and gas sector to adapt to evolving demand dynamics.



