In New Hampshire, you'll find 1 local gas station that you can fill up your Natural Gas Vehicle with CNG Fuel (Compressed Natural Gas). Below you'll find a handy list of these CNG Station Locations, as well as links to more information on other alternative fuels.
In most cases, a credit card, debit card, or commercial fleet card is going to be required for purchase as many stations are unmanned. Many stations may require a key card to access the property and station, as noted.