Diesel prices fell to $5.523 per gallon, but transportation leaders remain cautious about calling it a sustained cost reprieve as fuel markets continue reacting to geopolitical volatility, refinery dynamics and uncertainty around global energy supply.
Regulators are still pressing for more detail on environmental, competitive and operational impacts, while industry observers warn that every delay weakens the case for projected efficiencies, truck-to-rail conversion and expanded single-line service.