Diesel Fuel Prices Exceed Gasoline Since 2004

Why it matters locally: Iowa's agricultural sector, a significant consumer of diesel for farm machinery and transportation, is directly impacted by these consistently higher diesel fuel prices. This trend can affect operational costs for farmers across the state, potentially influencing food production expenses.

Diesel fuel has consistently been more expensive than regular gasoline since 2004, with only occasional exceptions. This pricing trend marks a change from earlier periods when diesel typically cost less. Three primary factors account for this reversal: evolving air quality standards, shifts in market demand, and adjustments to taxation policies. Before 2004, diesel prices often fell below those of gasoline. The subsequent policy and market changes altered this long-standing relationship.