WK19 · 2026
BEHIND THE SHIELD
The national average for on-highway diesel surged to $5.64/gal as of May 4 — up $0.29 from the prior week, a 5.4% single-week increase. This is not a temporary spike. Fuel costs are now $2.13/gal higher year-over-year (+61%). For shippers, fuel surcharge tables set before March 2026 are materially underpriced for today's cost environment and need immediate review.
The primary driver of this volatility is the ongoing conflict in Iran. Military activity in the region is directly pressuring crude oil markets, and the situation remains fluid — conditions can shift overnight. Every major carrier, broker, and fuel desk is monitoring the situation closely. Shippers should plan for continued price instability and avoid assuming the current level represents a ceiling.
The capacity picture amplifies the fuel problem. The national dry van load-to-truck ratio jumped to 8.68 — up 21% week-over-week. Equipment posts fell 12% last week and are now 23% below year-ago levels. Available truck capacity is 44% below the long-term average. The market is not softening — it is tightening rapidly, and the fuel cost increase removes any cushion carriers had to absorb spot rate pressure.
Catalyst 1 begins tomorrow: CVSA Roadcheck Week (May 12–14). During this 72-hour enforcement blitz, drivers voluntarily park trucks to avoid inspection. In 2025, over 56,000 inspections were conducted in this window. Equipment posts are expected to drop double digits. Shippers competing for spot capacity during Roadcheck will find the market materially tighter than the week prior.
Catalyst 2 follows two weeks later: Memorial Day (May 25). Retail and CPG shippers flood the market to position inventory before the holiday. This demand surge hits before post-Roadcheck truck supply has fully recovered, spiking the load-to-truck ratio from both sides simultaneously. The window between Roadcheck and Memorial Day is not a recovery period — it is a compression zone.
Catalyst 3 is the Produce Season compression. A late freeze delayed harvest activity, and volumes are now ramping simultaneously from Mexico, Texas, Arizona, California, and Florida. Mother's Day demand has already maxed out South Florida reefer capacity. As produce volumes accelerate, reefer capacity is pulled from the dry van network, spreading tightening across all equipment types.
The data confirms the shift. Dry van spot rates on top-50 lanes average $2.36/mile. Flatbed spot rates hit $3.58/mile — up 6.1% in a single week. CH Robinson raised its dry van cost-per-mile forecast from +17% to +23% YoY and its reefer forecast from +16% to +23% YoY. The market is repricing faster than most shipper budgets anticipated.
Pickett Research confirms we are deep into Cycle 6 of the US TL Spot Linehaul Rate Cycle, forecasting rates up 45% YoY by the end of 2026. Contract route guide depth is thinning — April route guide depth hit 1.33, the lowest of 2026. The window to lock in favorable contract pricing is closing fast.
