HDT Fact Book: Fuel & Emissions
The average price of a gallon of diesel in June 2014 was $3.91. Refiners paid about $2.47 per gallon in June for crude oil. Source: U.S. Department of Energy
* Includes the weighted average of state taxes plus the federal tax. Source: U.S. Department of Energy from various sources. Rates were converted to U.S. currency using current exchange rates.
The national average retail price of a gallon of regular gasoline in June 2014 was $3.69. The cost of crude oil as a share of the retail price varies over time and among regions of the country. Source: U.S. Department of Energy
While the number of vehicles on the road and miles traveled has increased, the amount of fuel used per vehicle has gradually declined, meaning less money in fuel taxes for the Highway Trust Fund. Source: Federal Highway Administration
Natural gas vehicles continue to show higher demand. They still remain a small percentage of truck purchases but are expected to increase going forward.