Compressed natural gas (CNG) is a readily available alternative to gasoline that’s made by compressing natural gas to less than 1% of its volume at standard atmospheric pressure. Consisting mostly of methane, CNG is odorless, colorless and tasteless. It’s drawn from domestically drilled natural gas wells or in conjunction with crude oil production. Compressed natural gas is considered a cheaper alternative to liquified natural gas (LNG) and propane, and it is also considered a very clean transportation fuel, with 90% less particulate emissions than diesel.

Meanwhile, Eichberger says there is likely a potential market for LNG in the heavy-duty sector, but attention to the natural gas vehicle market has slowed due to the lower price of diesel fuel.

Given the fact that the U.S. is a world leader in natural gas production, there is great potential for natural gas should economics turn in its favor.