Sourced domestically, natural gas motor fuel is less volatile to global market swings, providing price stability and savings to fleets of all sizes compared to gasoline or diesel. The U.S. Department of Energy Price Report indicates that toward the end of 2023, the retail price of compressed natural gas nationally was $1.30 less than the average for diesel fuel. In some regions of the country, that price spread is more pronounced with savings close to $2.50 per DGE. For fleets with trucks that drive tens of thousands of miles and consume significant gallons of fuel, this growing price differential results in real savings.

Fleets contracting for RNG often see even more savings as they can benefit from economic value associated with renewable identification numbers (RINs). Under the U.S. EPA’s Renewable Fuel Standard (RFS) Program, RNG sales generate RINs that can be sold to obligated parties (e.g. fuel marketers and fleet users), sometimes for several dollars per gallon equivalent.